Refactor DeviceVerification prefix classes to KeyVerification where needed. And move key verification related classes into the same module KeyVerification.

2026-04-22 17:42:45 +02:00 · 2020-03-18 17:39:26 +01:00
parent 991e2fe5f7
commit 23a02c362c
91 changed files with 819 additions and 803 deletions
@@ -0,0 +1,75 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SessionStatus UserVerificationSessionStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+import UIKit
+
+final class UserVerificationSessionStatusCoordinator: UserVerificationSessionStatusCoordinatorType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let session: MXSession
+    private let userId: String
+    private let deviceId: String
+    private var userVerificationSessionStatusViewModel: UserVerificationSessionStatusViewModelType
+    private let userVerificationSessionStatusViewController: UserVerificationSessionStatusViewController
+    
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    
+    weak var delegate: UserVerificationSessionStatusCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession, userId: String, userDisplayName: String?, deviceId: String) {
+        self.session = session
+        self.userId = userId
+        self.deviceId = deviceId
+        
+        let userVerificationSessionStatusViewModel = UserVerificationSessionStatusViewModel(session: self.session, userId: userId, userDisplayName: userDisplayName, deviceId: deviceId)
+        let userVerificationSessionStatusViewController = UserVerificationSessionStatusViewController.instantiate(with: userVerificationSessionStatusViewModel)
+        self.userVerificationSessionStatusViewModel = userVerificationSessionStatusViewModel
+        self.userVerificationSessionStatusViewController = userVerificationSessionStatusViewController
+    }
+    
+    // MARK: - Public methods
+    
+    func start() {            
+        self.userVerificationSessionStatusViewModel.coordinatorDelegate = self
+    }
+    
+    func toPresentable() -> UIViewController {
+        return self.userVerificationSessionStatusViewController
+    }
+}
+
+// MARK: - UserVerificationSessionStatusViewModelCoordinatorDelegate
+extension UserVerificationSessionStatusCoordinator: UserVerificationSessionStatusViewModelCoordinatorDelegate {
+    
+    func userVerificationSessionStatusViewModel(_ viewModel: UserVerificationSessionStatusViewModelType, wantsToManuallyVerifyDeviceWithId deviceId: String, for userId: String) {
+        self.delegate?.userVerificationSessionStatusCoordinator(self, wantsToManuallyVerifyDeviceWithId: deviceId, for: userId)
+    }
+    
+    func userVerificationSessionStatusViewModelDidClose(_ viewModel: UserVerificationSessionStatusViewModelType) {
+        self.delegate?.userVerificationSessionStatusCoordinatorDidClose(self)
+    }
+}
@@ -0,0 +1,29 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SessionStatus UserVerificationSessionStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+protocol UserVerificationSessionStatusCoordinatorDelegate: class {
+    func userVerificationSessionStatusCoordinator(_ coordinator: UserVerificationSessionStatusCoordinatorType, wantsToManuallyVerifyDeviceWithId deviceId: String, for userId: String)
+    func userVerificationSessionStatusCoordinatorDidClose(_ coordinator: UserVerificationSessionStatusCoordinatorType)
+}
+
+/// `UserVerificationSessionStatusCoordinatorType` is a protocol describing a Coordinator that handle key backup setup passphrase navigation flow.
+protocol UserVerificationSessionStatusCoordinatorType: Coordinator, Presentable {
+    var delegate: UserVerificationSessionStatusCoordinatorDelegate? { get }
+}
@@ -0,0 +1,26 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SessionStatus UserVerificationSessionStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+/// UserVerificationSessionStatusViewController view actions exposed to view model
+enum UserVerificationSessionStatusViewAction {
+    case loadData
+    case verify
+    case close
+}
@@ -0,0 +1,209 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="edG-Ef-G5W">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--User Verification Session Status View Controller-->
+        <scene sceneID="yMy-34-3pS">
+            <objects>
+                <viewController id="edG-Ef-G5W" customClass="UserVerificationSessionStatusViewController" customModule="Riot" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="G1A-RF-WrC">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="16P-bA-3wP">
+                                <rect key="frame" x="0.0" y="20" width="375" height="647"/>
+                                <subviews>
+                                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="sX2-Xu-9f5">
+                                        <rect key="frame" x="0.0" y="0.0" width="375" height="296.5"/>
+                                        <subviews>
+                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="1lx-d3-6c2">
+                                                <rect key="frame" x="0.0" y="0.0" width="375" height="108"/>
+                                                <subviews>
+                                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Qdf-kG-wgx">
+                                                        <rect key="frame" x="325" y="20" width="30" height="30"/>
+                                                        <constraints>
+                                                            <constraint firstAttribute="height" constant="30" id="Pon-L2-rt1"/>
+                                                            <constraint firstAttribute="width" constant="30" id="qav-Na-EDh"/>
+                                                        </constraints>
+                                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                                        <state key="normal" image="close_button"/>
+                                                        <connections>
+                                                            <action selector="closeButtonAction:" destination="edG-Ef-G5W" eventType="touchUpInside" id="0qe-Df-Nw1"/>
+                                                        </connections>
+                                                    </button>
+                                                    <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="encryption_warning" translatesAutoresizingMaskIntoConstraints="NO" id="0d0-9z-5Ar">
+                                                        <rect key="frame" x="20" y="23" width="24" height="24"/>
+                                                        <constraints>
+                                                            <constraint firstAttribute="width" secondItem="0d0-9z-5Ar" secondAttribute="height" multiplier="1:1" id="EYK-FL-Zx6"/>
+                                                            <constraint firstAttribute="height" constant="24" id="MuJ-Ex-1Vk"/>
+                                                        </constraints>
+                                                    </imageView>
+                                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Warning" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="mXI-Sg-wYe">
+                                                        <rect key="frame" x="54" y="23" width="261" height="24"/>
+                                                        <fontDescription key="fontDescription" type="system" weight="semibold" pointSize="20"/>
+                                                        <nil key="textColor"/>
+                                                        <nil key="highlightedColor"/>
+                                                    </label>
+                                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Messages with this user in this room are end-to-end encrypted and can’t be read by third parties." textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="CTY-XM-iLf">
+                                                        <rect key="frame" x="20" y="62" width="335" height="36"/>
+                                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                                        <nil key="textColor"/>
+                                                        <nil key="highlightedColor"/>
+                                                    </label>
+                                                </subviews>
+                                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <constraints>
+                                                    <constraint firstAttribute="trailing" secondItem="Qdf-kG-wgx" secondAttribute="trailing" constant="20" id="2JS-ui-NNI"/>
+                                                    <constraint firstItem="Qdf-kG-wgx" firstAttribute="leading" secondItem="mXI-Sg-wYe" secondAttribute="trailing" constant="10" id="7VI-oy-V0w"/>
+                                                    <constraint firstItem="CTY-XM-iLf" firstAttribute="top" secondItem="mXI-Sg-wYe" secondAttribute="bottom" constant="15" id="8UG-sf-OQU"/>
+                                                    <constraint firstItem="mXI-Sg-wYe" firstAttribute="centerY" secondItem="Qdf-kG-wgx" secondAttribute="centerY" id="Ad5-Kd-ox8"/>
+                                                    <constraint firstItem="0d0-9z-5Ar" firstAttribute="centerY" secondItem="mXI-Sg-wYe" secondAttribute="centerY" id="Jlp-rC-N2E"/>
+                                                    <constraint firstItem="CTY-XM-iLf" firstAttribute="trailing" secondItem="Qdf-kG-wgx" secondAttribute="trailing" id="LK6-M8-kCT"/>
+                                                    <constraint firstAttribute="bottom" secondItem="CTY-XM-iLf" secondAttribute="bottom" constant="10" id="MrU-Ar-zkT"/>
+                                                    <constraint firstItem="mXI-Sg-wYe" firstAttribute="leading" secondItem="0d0-9z-5Ar" secondAttribute="trailing" constant="10" id="O4U-Wa-zdT"/>
+                                                    <constraint firstItem="CTY-XM-iLf" firstAttribute="leading" secondItem="0d0-9z-5Ar" secondAttribute="leading" id="UeO-oR-wzQ"/>
+                                                    <constraint firstItem="Qdf-kG-wgx" firstAttribute="top" secondItem="1lx-d3-6c2" secondAttribute="top" constant="20" id="WOL-w8-7T3"/>
+                                                    <constraint firstItem="0d0-9z-5Ar" firstAttribute="leading" secondItem="1lx-d3-6c2" secondAttribute="leading" constant="20" id="cMk-cs-f9i"/>
+                                                </constraints>
+                                            </view>
+                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="3Mu-7j-flw">
+                                                <rect key="frame" x="0.0" y="108" width="375" height="40.5"/>
+                                                <subviews>
+                                                    <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="encryption_warning" translatesAutoresizingMaskIntoConstraints="NO" id="0ME-4K-MWA" customClass="encryption_warning">
+                                                        <rect key="frame" x="20" y="13.5" width="14" height="14"/>
+                                                        <constraints>
+                                                            <constraint firstAttribute="width" secondItem="0ME-4K-MWA" secondAttribute="height" multiplier="1:1" id="r0c-Ix-lm4"/>
+                                                            <constraint firstAttribute="width" constant="14" id="zKC-ZT-6y8"/>
+                                                        </constraints>
+                                                    </imageView>
+                                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Riot iOS (BLPOWKUPGQ)" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="FET-ZT-Q69">
+                                                        <rect key="frame" x="44" y="10" width="311" height="20.5"/>
+                                                        <fontDescription key="fontDescription" type="system" weight="medium" pointSize="17"/>
+                                                        <nil key="textColor"/>
+                                                        <nil key="highlightedColor"/>
+                                                    </label>
+                                                </subviews>
+                                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <constraints>
+                                                    <constraint firstItem="0ME-4K-MWA" firstAttribute="leading" secondItem="3Mu-7j-flw" secondAttribute="leading" constant="20" id="8W6-Zu-Qu2"/>
+                                                    <constraint firstAttribute="trailing" secondItem="FET-ZT-Q69" secondAttribute="trailing" constant="20" id="BbB-ge-jNu"/>
+                                                    <constraint firstItem="FET-ZT-Q69" firstAttribute="top" secondItem="3Mu-7j-flw" secondAttribute="top" constant="10" id="Bw3-IL-AwO"/>
+                                                    <constraint firstAttribute="bottom" secondItem="FET-ZT-Q69" secondAttribute="bottom" constant="10" id="NGo-OD-AHt"/>
+                                                    <constraint firstItem="FET-ZT-Q69" firstAttribute="leading" secondItem="0ME-4K-MWA" secondAttribute="trailing" constant="10" id="Sap-sa-3tW"/>
+                                                    <constraint firstItem="0ME-4K-MWA" firstAttribute="centerY" secondItem="FET-ZT-Q69" secondAttribute="centerY" id="W4V-Dz-CKf"/>
+                                                </constraints>
+                                            </view>
+                                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="rB7-Ct-Mq7">
+                                                <rect key="frame" x="0.0" y="148.5" width="375" height="148"/>
+                                                <subviews>
+                                                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="oRN-W6-TVF">
+                                                        <rect key="frame" x="0.0" y="0.0" width="375" height="148"/>
+                                                        <subviews>
+                                                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="dd2-N5-GEx">
+                                                                <rect key="frame" x="20" y="10" width="335" height="54"/>
+                                                                <string key="text">Until this user trusts this device, messages sent to and from it are labelled with warnings. Alternatively, you can manually verify it.</string>
+                                                                <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                                                <nil key="textColor"/>
+                                                                <nil key="highlightedColor"/>
+                                                            </label>
+                                                            <button opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="249" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="HiI-uV-Hjw">
+                                                                <rect key="frame" x="20" y="84" width="335" height="44"/>
+                                                                <accessibility key="accessibilityConfiguration" identifier="AuthenticationVCLoginButton"/>
+                                                                <constraints>
+                                                                    <constraint firstAttribute="height" constant="44" id="LKd-e3-0AI"/>
+                                                                    <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="100" id="exF-8e-73K"/>
+                                                                </constraints>
+                                                                <fontDescription key="fontDescription" type="system" weight="medium" pointSize="15"/>
+                                                                <inset key="contentEdgeInsets" minX="30" minY="0.0" maxX="30" maxY="0.0"/>
+                                                                <state key="normal" title="Manually verify">
+                                                                    <color key="titleColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                                                    <color key="titleShadowColor" red="0.5" green="0.5" blue="0.5" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                                                </state>
+                                                                <connections>
+                                                                    <action selector="verifyButtonAction:" destination="edG-Ef-G5W" eventType="touchUpInside" id="gGx-OT-X5w"/>
+                                                                </connections>
+                                                            </button>
+                                                        </subviews>
+                                                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                        <constraints>
+                                                            <constraint firstAttribute="bottom" secondItem="HiI-uV-Hjw" secondAttribute="bottom" constant="20" id="3bP-Hs-m42"/>
+                                                            <constraint firstAttribute="trailing" secondItem="dd2-N5-GEx" secondAttribute="trailing" constant="20" id="BHw-Yv-ceG"/>
+                                                            <constraint firstItem="dd2-N5-GEx" firstAttribute="leading" secondItem="oRN-W6-TVF" secondAttribute="leading" constant="20" id="BV7-Vu-PQR"/>
+                                                            <constraint firstItem="HiI-uV-Hjw" firstAttribute="top" secondItem="dd2-N5-GEx" secondAttribute="bottom" constant="20" id="BtT-Mg-Okq"/>
+                                                            <constraint firstItem="HiI-uV-Hjw" firstAttribute="centerX" secondItem="oRN-W6-TVF" secondAttribute="centerX" id="Ign-Yp-tpB"/>
+                                                            <constraint firstItem="dd2-N5-GEx" firstAttribute="top" secondItem="oRN-W6-TVF" secondAttribute="top" constant="10" id="Ygn-tl-ahK"/>
+                                                            <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="HiI-uV-Hjw" secondAttribute="trailing" constant="20" id="nqA-lS-ubx"/>
+                                                            <constraint firstItem="HiI-uV-Hjw" firstAttribute="width" secondItem="oRN-W6-TVF" secondAttribute="width" priority="250" id="qp1-z5-eP9"/>
+                                                            <constraint firstItem="HiI-uV-Hjw" firstAttribute="leading" relation="greaterThanOrEqual" secondItem="oRN-W6-TVF" secondAttribute="leading" constant="20" id="uNl-Ok-uee"/>
+                                                            <constraint firstAttribute="height" priority="250" id="yuI-ch-y92"/>
+                                                        </constraints>
+                                                    </view>
+                                                </subviews>
+                                                <constraints>
+                                                    <constraint firstItem="oRN-W6-TVF" firstAttribute="width" secondItem="rB7-Ct-Mq7" secondAttribute="width" id="2pR-3D-RYU"/>
+                                                </constraints>
+                                            </stackView>
+                                        </subviews>
+                                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <constraints>
+                                            <constraint firstAttribute="trailing" secondItem="3Mu-7j-flw" secondAttribute="trailing" id="W3d-d0-w2v"/>
+                                            <constraint firstItem="rB7-Ct-Mq7" firstAttribute="leading" secondItem="sX2-Xu-9f5" secondAttribute="leading" id="aH4-6p-pgC"/>
+                                            <constraint firstItem="1lx-d3-6c2" firstAttribute="top" secondItem="sX2-Xu-9f5" secondAttribute="top" id="aTB-di-K6F"/>
+                                            <constraint firstAttribute="bottom" secondItem="rB7-Ct-Mq7" secondAttribute="bottom" id="dOS-zD-hAw"/>
+                                            <constraint firstAttribute="trailing" secondItem="rB7-Ct-Mq7" secondAttribute="trailing" id="iH7-HJ-6RG"/>
+                                            <constraint firstAttribute="trailing" secondItem="1lx-d3-6c2" secondAttribute="trailing" id="lLi-mF-pmE"/>
+                                            <constraint firstItem="1lx-d3-6c2" firstAttribute="leading" secondItem="sX2-Xu-9f5" secondAttribute="leading" id="rU8-aC-b2j"/>
+                                            <constraint firstItem="3Mu-7j-flw" firstAttribute="leading" secondItem="sX2-Xu-9f5" secondAttribute="leading" id="thK-xG-Pvw"/>
+                                            <constraint firstItem="3Mu-7j-flw" firstAttribute="top" secondItem="1lx-d3-6c2" secondAttribute="bottom" id="xjU-4b-Ac0"/>
+                                            <constraint firstItem="rB7-Ct-Mq7" firstAttribute="top" secondItem="3Mu-7j-flw" secondAttribute="bottom" id="yOc-gk-ilO"/>
+                                        </constraints>
+                                    </view>
+                                </subviews>
+                                <constraints>
+                                    <constraint firstAttribute="trailing" secondItem="sX2-Xu-9f5" secondAttribute="trailing" id="9uF-gg-w2a"/>
+                                    <constraint firstItem="sX2-Xu-9f5" firstAttribute="width" secondItem="16P-bA-3wP" secondAttribute="width" id="AbT-qq-n6g"/>
+                                    <constraint firstItem="sX2-Xu-9f5" firstAttribute="leading" secondItem="16P-bA-3wP" secondAttribute="leading" id="pP0-dc-iec"/>
+                                    <constraint firstAttribute="bottom" secondItem="sX2-Xu-9f5" secondAttribute="bottom" id="tUz-rr-k5B"/>
+                                    <constraint firstItem="sX2-Xu-9f5" firstAttribute="top" secondItem="16P-bA-3wP" secondAttribute="top" id="yrj-Cm-1Zm"/>
+                                </constraints>
+                            </scrollView>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstAttribute="bottom" secondItem="16P-bA-3wP" secondAttribute="bottom" id="3Ak-zJ-1Ca"/>
+                            <constraint firstItem="16P-bA-3wP" firstAttribute="top" secondItem="cZY-v6-GjO" secondAttribute="top" id="SV3-Ai-4QS"/>
+                            <constraint firstItem="16P-bA-3wP" firstAttribute="leading" secondItem="cZY-v6-GjO" secondAttribute="leading" id="dlk-85-Zca"/>
+                            <constraint firstItem="16P-bA-3wP" firstAttribute="trailing" secondItem="cZY-v6-GjO" secondAttribute="trailing" id="hFM-5p-Ne1"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="cZY-v6-GjO"/>
+                    </view>
+                    <connections>
+                        <outlet property="badgeImageView" destination="0d0-9z-5Ar" id="M0i-8Q-Zal"/>
+                        <outlet property="closeButton" destination="Qdf-kG-wgx" id="yl7-lg-gW6"/>
+                        <outlet property="deviceInformationLabel" destination="FET-ZT-Q69" id="D8n-5b-H4p"/>
+                        <outlet property="deviceStatusImageView" destination="0ME-4K-MWA" id="kgp-dT-Q0P"/>
+                        <outlet property="informationLabel" destination="CTY-XM-iLf" id="qVC-lS-YOY"/>
+                        <outlet property="titleLabel" destination="mXI-Sg-wYe" id="Wrj-QM-srt"/>
+                        <outlet property="untrustedSessionContainerView" destination="oRN-W6-TVF" id="9sc-53-MWY"/>
+                        <outlet property="untrustedSessionInformationLabel" destination="dd2-N5-GEx" id="6TB-Ve-OyC"/>
+                        <outlet property="verifyButton" destination="HiI-uV-Hjw" id="JnR-0Q-aSc"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="8Fe-S5-Pf4" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-175.19999999999999" y="124.58770614692655"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="close_button" width="16" height="16"/>
+        <image name="encryption_warning" width="16" height="16"/>
+    </resources>
+</document>
@@ -0,0 +1,270 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SessionStatus UserVerificationSessionStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+final class UserVerificationSessionStatusViewController: UIViewController {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let verifyButtonCornerRadius: CGFloat = 8.0
+        static let informationTextDefaultFont = UIFont.systemFont(ofSize: 15.0)
+        static let informationTextBoldFont = UIFont.systemFont(ofSize: 15.0, weight: .medium)
+        static let deviceNameFont = UIFont.systemFont(ofSize: 17.0, weight: .medium)
+        static let deviceIdFont = UIFont.systemFont(ofSize: 15.0)
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+    
+    @IBOutlet private weak var badgeImageView: UIImageView!
+    @IBOutlet private weak var titleLabel: UILabel!
+    @IBOutlet private weak var closeButton: UIButton!
+    @IBOutlet private weak var informationLabel: UILabel!
+    
+    @IBOutlet private weak var deviceStatusImageView: UIImageView!
+    @IBOutlet private weak var deviceInformationLabel: UILabel!
+    
+    @IBOutlet private weak var untrustedSessionContainerView: UIView!
+    @IBOutlet private weak var untrustedSessionInformationLabel: UILabel!
+    @IBOutlet private weak var verifyButton: UIButton!
+    
+    // MARK: Private
+
+    private var viewModel: UserVerificationSessionStatusViewModelType!
+    private var theme: Theme!
+    private var keyboardAvoider: KeyboardAvoider?
+    private var errorPresenter: MXKErrorPresentation!
+    private var activityPresenter: ActivityIndicatorPresenter!
+
+    // MARK: - Setup
+    
+    class func instantiate(with viewModel: UserVerificationSessionStatusViewModelType) -> UserVerificationSessionStatusViewController {
+        let viewController = StoryboardScene.UserVerificationSessionStatusViewController.initialScene.instantiate()
+        viewController.viewModel = viewModel
+        viewController.theme = ThemeService.shared().theme
+        return viewController
+    }
+    
+    // MARK: - Life cycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        // Do any additional setup after loading the view.                
+        
+        self.setupViews()
+        self.vc_removeBackTitle()
+        self.activityPresenter = ActivityIndicatorPresenter()
+        self.errorPresenter = MXKErrorAlertPresentation()
+        
+        self.registerThemeServiceDidChangeThemeNotification()
+        self.update(theme: self.theme)
+        
+        self.viewModel.viewDelegate = self
+        self.viewModel.process(viewAction: .loadData)
+    }
+    
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return self.theme.statusBarStyle
+    }
+    
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        
+        self.verifyButton.layer.cornerRadius = Constants.verifyButtonCornerRadius
+        self.closeButton.layer.cornerRadius = self.closeButton.frame.size.width/2
+    }
+    
+    // MARK: - Private
+    
+    private func update(theme: Theme) {
+        self.theme = theme
+        
+        if let navigationBar = self.navigationController?.navigationBar {
+            theme.applyStyle(onNavigationBar: navigationBar)
+        }
+        
+        self.view.backgroundColor = theme.headerBackgroundColor
+        
+        self.titleLabel.textColor = theme.textPrimaryColor
+        self.closeButton.vc_setBackgroundColor(theme.headerTextSecondaryColor, for: .normal)
+        
+        self.informationLabel.textColor = theme.textPrimaryColor
+        
+        self.untrustedSessionInformationLabel.textColor = theme.textPrimaryColor
+        self.verifyButton.vc_setBackgroundColor(theme.tintColor, for: .normal)
+    }
+    
+    private func registerThemeServiceDidChangeThemeNotification() {
+        NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    @objc private func themeDidChange() {
+        self.update(theme: ThemeService.shared().theme)
+    }
+    
+    private func setupViews() {
+        self.closeButton.layer.masksToBounds = true
+        self.verifyButton.layer.masksToBounds = true
+    }
+
+    private func render(viewState: UserVerificationSessionStatusViewState) {
+        switch viewState {
+        case .loading:
+            self.renderLoading()
+        case .loaded(viewData: let sessionStatusViewData):
+            self.renderLoaded(viewData: sessionStatusViewData)
+        case .error(let error):
+            self.render(error: error)
+        }
+    }
+    
+    private func renderLoading() {
+        self.activityPresenter.presentActivityIndicator(on: self.view, animated: true)
+    }
+    
+    private func renderLoaded(viewData: SessionStatusViewData) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        
+        let badgeImage: UIImage
+        let title: String
+        
+        self.untrustedSessionContainerView.isHidden = viewData.isDeviceTrusted
+        
+        if viewData.isDeviceTrusted {
+            badgeImage = Asset.Images.encryptionTrusted.image
+            title = VectorL10n.userVerificationSessionDetailsTrustedTitle
+        } else {
+            badgeImage = Asset.Images.encryptionWarning.image
+            title = VectorL10n.userVerificationSessionDetailsUntrustedTitle
+        }
+        
+        let unstrustedInformationText: String
+        let verifyButtonTitle: String
+        
+        if viewData.isCurrentUser {
+            unstrustedInformationText = VectorL10n.userVerificationSessionDetailsAdditionalInformationUntrustedCurrentUser
+            verifyButtonTitle = VectorL10n.userVerificationSessionDetailsVerifyActionCurrentUser
+        } else {
+            unstrustedInformationText = VectorL10n.userVerificationSessionDetailsAdditionalInformationUntrustedOtherUser
+            verifyButtonTitle = VectorL10n.userVerificationSessionDetailsVerifyActionOtherUser
+        }
+        
+        self.badgeImageView.image = badgeImage
+        self.titleLabel.text = title
+        self.informationLabel.attributedText = self.buildInformationAttributedText(with: viewData)
+        
+        self.deviceStatusImageView.image = badgeImage
+        self.deviceInformationLabel.attributedText = self.builDeviceInfoAttributedText(with: viewData)
+        
+        self.untrustedSessionInformationLabel.text = unstrustedInformationText
+        self.verifyButton.setTitle(verifyButtonTitle, for: .normal)
+    }
+    
+    private func render(error: Error) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        self.errorPresenter.presentError(from: self, forError: error, animated: true, handler: nil)
+    }
+    
+    private func buildUserInfoText(with userId: String, userDisplayName: String?) -> String {
+        
+        let userInfoText: String
+        
+        if let userDisplayName = userDisplayName {
+            userInfoText = "\(userDisplayName) (\(userId))"
+        } else {
+            userInfoText = userId
+        }
+        
+        return userInfoText
+    }
+    
+    private func buildInformationAttributedText(with viewData: SessionStatusViewData) -> NSAttributedString {
+        
+        let informationAttributedText: NSMutableAttributedString = NSMutableAttributedString()
+        
+        let informationTextDefaultAttributes: [NSAttributedString.Key: Any] = [.foregroundColor: self.theme.textPrimaryColor,
+                                                                               .font: Constants.informationTextDefaultFont]
+        
+        let informationTextBoldAttributes: [NSAttributedString.Key: Any] = [.foregroundColor: self.theme.textPrimaryColor,
+                                                                            .font: Constants.informationTextBoldFont]
+        
+        let userInfoText = self.buildUserInfoText(with: viewData.userId, userDisplayName: viewData.userDisplayName)
+        
+        if viewData.isDeviceTrusted {
+            
+            if viewData.isCurrentUser {
+                let informationAttributedStringPart1 = NSAttributedString(string: VectorL10n.userVerificationSessionDetailsInformationTrustedCurrentUser, attributes: informationTextDefaultAttributes)
+                informationAttributedText.append(informationAttributedStringPart1)
+            } else {
+                let informationAttributedStringPart1 = NSAttributedString(string: VectorL10n.userVerificationSessionDetailsInformationTrustedOtherUserPart1, attributes: informationTextDefaultAttributes)
+                let informationAttributedStringPart2 = NSAttributedString(string: userInfoText, attributes: informationTextBoldAttributes)
+                let informationAttributedStringPart3 = NSAttributedString(string: VectorL10n.userVerificationSessionDetailsInformationTrustedOtherUserPart2, attributes: informationTextDefaultAttributes)
+                
+                informationAttributedText.append(informationAttributedStringPart1)
+                informationAttributedText.append(informationAttributedStringPart2)
+                informationAttributedText.append(informationAttributedStringPart3)
+            }
+            
+        } else {
+            if viewData.isCurrentUser {
+                let informationAttributedStringPart1 = NSAttributedString(string: VectorL10n.userVerificationSessionDetailsInformationUntrustedCurrentUser, attributes: informationTextDefaultAttributes)
+                informationAttributedText.append(informationAttributedStringPart1)
+            } else {
+                let informationAttributedStringPart1 = NSAttributedString(string: userInfoText, attributes: informationTextBoldAttributes)
+                let informationAttributedStringPart2 = NSAttributedString(string: VectorL10n.userVerificationSessionDetailsInformationUntrustedOtherUser, attributes: informationTextDefaultAttributes)
+                
+                informationAttributedText.append(informationAttributedStringPart1)
+                informationAttributedText.append(informationAttributedStringPart2)
+            }
+        }
+        
+        return informationAttributedText
+    }
+    
+    private func builDeviceInfoAttributedText(with viewData: SessionStatusViewData) -> NSAttributedString {
+        let deviceInfoAttributedText = NSMutableAttributedString()
+        let deviceInfoAttributedTextPart1 = NSAttributedString(string: "\(viewData.deviceName) ", attributes: [.foregroundColor: self.theme.textPrimaryColor, .font: Constants.deviceNameFont])
+        let deviceInfoAttributedTextPart2 = NSAttributedString(string: "(\(viewData.deviceId))", attributes: [.foregroundColor: self.theme.textSecondaryColor, .font: Constants.deviceIdFont])
+        deviceInfoAttributedText.append(deviceInfoAttributedTextPart1)
+        deviceInfoAttributedText.append(deviceInfoAttributedTextPart2)
+        return deviceInfoAttributedText
+    }
+    
+    // MARK: - Actions
+    
+    @IBAction private func closeButtonAction(_ sender: Any) {
+        self.viewModel.process(viewAction: .close)
+    }
+    
+    @IBAction private func verifyButtonAction(_ sender: Any) {
+        self.viewModel.process(viewAction: .verify)
+    }
+}
+
+
+// MARK: - UserVerificationSessionStatusViewModelViewDelegate
+extension UserVerificationSessionStatusViewController: UserVerificationSessionStatusViewModelViewDelegate {
+
+    func userVerificationSessionStatusViewModel(_ viewModel: UserVerificationSessionStatusViewModelType, didUpdateViewState viewSate: UserVerificationSessionStatusViewState) {
+        self.render(viewState: viewSate)
+    }
+}
@@ -0,0 +1,95 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SessionStatus UserVerificationSessionStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+struct SessionStatusViewData {
+    let userId: String
+    let userDisplayName: String?
+    let isCurrentUser: Bool
+    
+    let deviceId: String
+    let deviceName: String
+    let isDeviceTrusted: Bool
+}
+
+enum UserVerificationSessionStatusViewModelError: Error {
+    case deviceNotFound
+}
+
+final class UserVerificationSessionStatusViewModel: UserVerificationSessionStatusViewModelType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+
+    private let session: MXSession
+    private let userId: String
+    private let userDisplayName: String?
+    private let deviceId: String
+    
+    // MARK: Public
+
+    weak var viewDelegate: UserVerificationSessionStatusViewModelViewDelegate?
+    weak var coordinatorDelegate: UserVerificationSessionStatusViewModelCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession, userId: String, userDisplayName: String?, deviceId: String) {
+        self.session = session
+        self.userId = userId
+        self.userDisplayName = userDisplayName
+        self.deviceId = deviceId
+    }
+    
+    // MARK: - Public
+    
+    func process(viewAction: UserVerificationSessionStatusViewAction) {
+        switch viewAction {
+        case .loadData:
+            self.loadData()
+        case .verify:
+            self.coordinatorDelegate?.userVerificationSessionStatusViewModel(self, wantsToManuallyVerifyDeviceWithId: self.deviceId, for: self.userId)
+        case .close:
+            self.coordinatorDelegate?.userVerificationSessionStatusViewModelDidClose(self)
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func loadData() {
+        guard let deviceInfo = self.session.crypto.device(withDeviceId: self.deviceId, ofUser: self.userId) else {
+            self.update(viewState: .error(UserVerificationSessionStatusViewModelError.deviceNotFound))
+            return
+        }
+        
+        let isCurrentUser = self.session.myUser.userId == self.userId
+        
+        let viewData = SessionStatusViewData(userId: self.userId,
+                                             userDisplayName: self.userDisplayName,
+                                             isCurrentUser: isCurrentUser,
+                                             deviceId: deviceInfo.deviceId,
+                                             deviceName: deviceInfo.displayName ?? "",
+                                             isDeviceTrusted: deviceInfo.trustLevel.isVerified)
+        self.update(viewState: .loaded(viewData: viewData))
+    }
+    
+    private func update(viewState: UserVerificationSessionStatusViewState) {
+        self.viewDelegate?.userVerificationSessionStatusViewModel(self, didUpdateViewState: viewState)
+    }
+}
@@ -0,0 +1,37 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SessionStatus UserVerificationSessionStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+protocol UserVerificationSessionStatusViewModelViewDelegate: class {
+    func userVerificationSessionStatusViewModel(_ viewModel: UserVerificationSessionStatusViewModelType, didUpdateViewState viewSate: UserVerificationSessionStatusViewState)
+}
+
+protocol UserVerificationSessionStatusViewModelCoordinatorDelegate: class {
+    func userVerificationSessionStatusViewModel(_ viewModel: UserVerificationSessionStatusViewModelType, wantsToManuallyVerifyDeviceWithId deviceId: String, for userId: String)
+    func userVerificationSessionStatusViewModelDidClose(_ viewModel: UserVerificationSessionStatusViewModelType)
+}
+
+/// Protocol describing the view model used by `UserVerificationSessionStatusViewController`
+protocol UserVerificationSessionStatusViewModelType {        
+        
+    var viewDelegate: UserVerificationSessionStatusViewModelViewDelegate? { get set }
+    var coordinatorDelegate: UserVerificationSessionStatusViewModelCoordinatorDelegate? { get set }
+    
+    func process(viewAction: UserVerificationSessionStatusViewAction)
+}
@@ -0,0 +1,26 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SessionStatus UserVerificationSessionStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+/// UserVerificationSessionStatusViewController view state
+enum UserVerificationSessionStatusViewState {
+    case loading
+    case loaded(viewData: SessionStatusViewData)
+    case error(Error)
+}
@@ -0,0 +1,79 @@
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+import Reusable
+
+struct UserVerificationSessionStatusViewData {
+    let deviceId: String
+    let sessionName: String
+    let isTrusted: Bool
+}
+
+final class UserVerificationSessionStatusCell: UITableViewCell, NibReusable, Themable {
+
+    // MARK: - Properties
+    
+    // MARK: Outlets
+    
+    @IBOutlet private weak var statusImageView: UIImageView!
+    @IBOutlet private weak var sessionNameLabel: UILabel!
+    @IBOutlet private weak var statusTextLabel: UILabel!
+    
+    // MARK: Private
+    
+    private var viewData: UserVerificationSessionStatusViewData?
+    private var theme: Theme?
+    
+    // MARK: - Public
+    
+    func fill(viewData: UserVerificationSessionStatusViewData) {
+        self.viewData = viewData
+        
+        let statusText: String
+        let statusImage: UIImage
+        
+        if viewData.isTrusted {
+            statusImage = Asset.Images.encryptionTrusted.image
+            statusText = VectorL10n.userVerificationSessionsListSessionTrusted
+        } else {
+            statusImage = Asset.Images.encryptionWarning.image
+            statusText = VectorL10n.userVerificationSessionsListSessionUntrusted            
+        }
+        
+        self.statusImageView.image = statusImage
+        self.statusTextLabel.text = statusText
+        self.sessionNameLabel.text = viewData.sessionName
+        
+        self.updateStatusTextColor()
+    }
+    
+    func update(theme: Theme) {
+        self.theme = theme
+        self.backgroundColor = theme.headerBackgroundColor
+        self.sessionNameLabel.textColor = theme.textPrimaryColor
+        self.updateStatusTextColor()
+    }
+    
+    // MARK: - Private
+    
+    private func updateStatusTextColor() {
+        guard let viewData = self.viewData, let theme = self.theme else {
+            return
+        }
+        self.statusTextLabel.textColor = viewData.isTrusted ? theme.tintColor : theme.warningColor
+    }
+}
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
+    <device id="retina6_1" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <tableViewCell contentMode="scaleToFill" selectionStyle="default" indentationWidth="10" rowHeight="37" id="KGk-i7-Jjw" customClass="UserVerificationSessionStatusCell" customModule="Riot" customModuleProvider="target">
+            <rect key="frame" x="0.0" y="0.0" width="307" height="37"/>
+            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+            <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" tableViewCell="KGk-i7-Jjw" id="H2p-sc-9uM">
+                <rect key="frame" x="0.0" y="0.0" width="307" height="36.5"/>
+                <autoresizingMask key="autoresizingMask"/>
+                <subviews>
+                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="V5p-pi-DJj">
+                        <rect key="frame" x="0.0" y="0.0" width="307" height="36.5"/>
+                        <subviews>
+                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="encryption_warning" translatesAutoresizingMaskIntoConstraints="NO" id="4Ja-9R-o9i" customClass="encryption_warning">
+                                <rect key="frame" x="20" y="11.5" width="14" height="14"/>
+                                <constraints>
+                                    <constraint firstAttribute="width" secondItem="4Ja-9R-o9i" secondAttribute="height" multiplier="1:1" id="Ivd-S1-mib"/>
+                                    <constraint firstAttribute="width" constant="14" id="n0o-Xb-nnn"/>
+                                </constraints>
+                            </imageView>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Riot iOS" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="MkZ-9n-kCS">
+                                <rect key="frame" x="44" y="10" width="174.5" height="16.5"/>
+                                <fontDescription key="fontDescription" type="system" weight="medium" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="252" verticalHuggingPriority="251" horizontalCompressionResistancePriority="752" text="Trusted" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="wsp-qe-DLy">
+                                <rect key="frame" x="228.5" y="8" width="58.5" height="21"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <color key="textColor" red="0.01176470588" green="0.70196078429999997" blue="0.50588235290000005" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                        </subviews>
+                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="MkZ-9n-kCS" firstAttribute="leading" secondItem="4Ja-9R-o9i" secondAttribute="trailing" constant="10" id="29O-OV-c6O"/>
+                            <constraint firstItem="4Ja-9R-o9i" firstAttribute="leading" secondItem="V5p-pi-DJj" secondAttribute="leading" constant="20" id="Gcu-EC-b72"/>
+                            <constraint firstItem="wsp-qe-DLy" firstAttribute="centerY" secondItem="MkZ-9n-kCS" secondAttribute="centerY" id="JQR-uR-OSm"/>
+                            <constraint firstAttribute="bottom" secondItem="MkZ-9n-kCS" secondAttribute="bottom" constant="10" id="Ohk-Zx-SaA"/>
+                            <constraint firstAttribute="trailing" secondItem="wsp-qe-DLy" secondAttribute="trailing" constant="20" id="Onn-ew-tSg"/>
+                            <constraint firstItem="4Ja-9R-o9i" firstAttribute="centerY" secondItem="MkZ-9n-kCS" secondAttribute="centerY" id="U88-nG-bpa"/>
+                            <constraint firstItem="wsp-qe-DLy" firstAttribute="leading" secondItem="MkZ-9n-kCS" secondAttribute="trailing" constant="10" id="VdB-e0-Ru9"/>
+                            <constraint firstItem="MkZ-9n-kCS" firstAttribute="top" secondItem="V5p-pi-DJj" secondAttribute="top" constant="10" id="lx8-Ae-MX8"/>
+                        </constraints>
+                    </view>
+                </subviews>
+                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                <constraints>
+                    <constraint firstItem="V5p-pi-DJj" firstAttribute="top" secondItem="H2p-sc-9uM" secondAttribute="top" id="3rQ-mA-tnY"/>
+                    <constraint firstItem="V5p-pi-DJj" firstAttribute="leading" secondItem="H2p-sc-9uM" secondAttribute="leading" id="PDK-oM-MhJ"/>
+                    <constraint firstAttribute="bottom" secondItem="V5p-pi-DJj" secondAttribute="bottom" id="dj0-s9-48N"/>
+                    <constraint firstAttribute="trailing" secondItem="V5p-pi-DJj" secondAttribute="trailing" id="lp6-TZ-ycQ"/>
+                </constraints>
+            </tableViewCellContentView>
+            <viewLayoutGuide key="safeArea" id="njF-e1-oar"/>
+            <connections>
+                <outlet property="sessionNameLabel" destination="MkZ-9n-kCS" id="atH-sc-sJx"/>
+                <outlet property="statusImageView" destination="4Ja-9R-o9i" id="n6o-LV-b3O"/>
+                <outlet property="statusTextLabel" destination="wsp-qe-DLy" id="4dV-vY-pmR"/>
+            </connections>
+            <point key="canvasLocation" x="-72" y="26"/>
+        </tableViewCell>
+    </objects>
+    <resources>
+        <image name="encryption_warning" width="16" height="16"/>
+    </resources>
+</document>
@@ -0,0 +1,70 @@
+// File created from ScreenTemplate
+// $ createScreen.sh UserVerification UserVerificationSessionsStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+import UIKit
+
+final class UserVerificationSessionsStatusCoordinator: UserVerificationSessionsStatusCoordinatorType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let session: MXSession
+    private var userVerificationSessionsStatusViewModel: UserVerificationSessionsStatusViewModelType
+    private let userVerificationSessionsStatusViewController: UserVerificationSessionsStatusViewController
+    
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    
+    weak var delegate: UserVerificationSessionsStatusCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession, userId: String) {
+        self.session = session
+        
+        let userVerificationSessionsStatusViewModel = UserVerificationSessionsStatusViewModel(session: self.session, userId: userId)
+        let userVerificationSessionsStatusViewController = UserVerificationSessionsStatusViewController.instantiate(with: userVerificationSessionsStatusViewModel)
+        self.userVerificationSessionsStatusViewModel = userVerificationSessionsStatusViewModel
+        self.userVerificationSessionsStatusViewController = userVerificationSessionsStatusViewController
+    }
+    
+    // MARK: - Public methods
+    
+    func start() {            
+        self.userVerificationSessionsStatusViewModel.coordinatorDelegate = self
+    }
+    
+    func toPresentable() -> UIViewController {
+        return self.userVerificationSessionsStatusViewController
+    }
+}
+
+// MARK: - UserVerificationSessionsStatusViewModelCoordinatorDelegate
+extension UserVerificationSessionsStatusCoordinator: UserVerificationSessionsStatusViewModelCoordinatorDelegate {
+    func userVerificationSessionsStatusViewModel(_ viewModel: UserVerificationSessionsStatusViewModelType, didSelectDeviceWithId deviceId: String, for userId: String) {
+        self.delegate?.userVerificationSessionsStatusCoordinator(self, didSelectDeviceWithId: deviceId, for: userId)
+    }
+    
+    func userVerificationSessionsStatusViewModelDidClose(_ viewModel: UserVerificationSessionsStatusViewModelType) {
+        self.delegate?.userVerificationSessionsStatusCoordinatorDidClose(self)
+    }
+}
@@ -0,0 +1,29 @@
+// File created from ScreenTemplate
+// $ createScreen.sh UserVerification UserVerificationSessionsStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+protocol UserVerificationSessionsStatusCoordinatorDelegate: class {
+    func userVerificationSessionsStatusCoordinatorDidClose(_ coordinator: UserVerificationSessionsStatusCoordinatorType)
+    func userVerificationSessionsStatusCoordinator(_ coordinator: UserVerificationSessionsStatusCoordinatorType, didSelectDeviceWithId deviceId: String, for userId: String)
+}
+
+/// `UserVerificationSessionsStatusCoordinatorType` is a protocol describing a Coordinator that handle key backup setup passphrase navigation flow.
+protocol UserVerificationSessionsStatusCoordinatorType: Coordinator, Presentable {
+    var delegate: UserVerificationSessionsStatusCoordinatorDelegate? { get }
+}
@@ -0,0 +1,26 @@
+// File created from ScreenTemplate
+// $ createScreen.sh UserVerification UserVerificationSessionsStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+/// UserVerificationSessionsStatusViewController view actions exposed to view model
+enum UserVerificationSessionsStatusViewAction {
+    case loadData
+    case selectSession(deviceId: String)
+    case close
+}
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="le3-e8-C1h">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--User Verification Sessions Status View Controller-->
+        <scene sceneID="G1j-dD-ArC">
+            <objects>
+                <viewController id="le3-e8-C1h" customClass="UserVerificationSessionsStatusViewController" customModule="Riot" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="IXd-J2-Vex">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Kfr-Ho-krK">
+                                <rect key="frame" x="0.0" y="20" width="375" height="108"/>
+                                <subviews>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="NBJ-A1-IP0">
+                                        <rect key="frame" x="325" y="20" width="30" height="30"/>
+                                        <constraints>
+                                            <constraint firstAttribute="width" constant="30" id="jda-sE-4Uz"/>
+                                            <constraint firstAttribute="height" constant="30" id="rPb-uQ-Tyt"/>
+                                        </constraints>
+                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                        <state key="normal" image="close_button"/>
+                                        <connections>
+                                            <action selector="closeButtonAction:" destination="le3-e8-C1h" eventType="touchUpInside" id="4JW-Rl-hIk"/>
+                                        </connections>
+                                    </button>
+                                    <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="encryption_warning" translatesAutoresizingMaskIntoConstraints="NO" id="rZH-h1-WTw">
+                                        <rect key="frame" x="20" y="23" width="24" height="24"/>
+                                        <constraints>
+                                            <constraint firstAttribute="width" secondItem="rZH-h1-WTw" secondAttribute="height" multiplier="1:1" id="RgU-aV-cmS"/>
+                                            <constraint firstAttribute="height" constant="24" id="v0F-Dp-CmF"/>
+                                        </constraints>
+                                    </imageView>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Warning" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="fcs-Vl-AtB">
+                                        <rect key="frame" x="54" y="23" width="261" height="24"/>
+                                        <fontDescription key="fontDescription" type="system" weight="semibold" pointSize="20"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Messages with this user in this room are end-to-end encrypted and can’t be read by third parties." textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Vfc-7p-LLs">
+                                        <rect key="frame" x="20" y="62" width="335" height="36"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                </subviews>
+                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <constraints>
+                                    <constraint firstItem="NBJ-A1-IP0" firstAttribute="leading" secondItem="fcs-Vl-AtB" secondAttribute="trailing" constant="10" id="0cd-68-5tR"/>
+                                    <constraint firstItem="fcs-Vl-AtB" firstAttribute="leading" secondItem="rZH-h1-WTw" secondAttribute="trailing" constant="10" id="75Z-TB-Hhj"/>
+                                    <constraint firstItem="fcs-Vl-AtB" firstAttribute="centerY" secondItem="NBJ-A1-IP0" secondAttribute="centerY" id="DVH-2n-tXo"/>
+                                    <constraint firstItem="Vfc-7p-LLs" firstAttribute="trailing" secondItem="NBJ-A1-IP0" secondAttribute="trailing" id="KQg-I1-5FP"/>
+                                    <constraint firstItem="rZH-h1-WTw" firstAttribute="centerY" secondItem="fcs-Vl-AtB" secondAttribute="centerY" id="N8y-sA-Am7"/>
+                                    <constraint firstItem="NBJ-A1-IP0" firstAttribute="top" secondItem="Kfr-Ho-krK" secondAttribute="top" constant="20" id="VUJ-Jj-UjR"/>
+                                    <constraint firstAttribute="trailing" secondItem="NBJ-A1-IP0" secondAttribute="trailing" constant="20" id="ZH0-2n-XKy"/>
+                                    <constraint firstItem="rZH-h1-WTw" firstAttribute="leading" secondItem="Kfr-Ho-krK" secondAttribute="leading" constant="20" id="gPw-ja-veq"/>
+                                    <constraint firstItem="Vfc-7p-LLs" firstAttribute="top" secondItem="fcs-Vl-AtB" secondAttribute="bottom" constant="15" id="qh5-nR-1EN"/>
+                                    <constraint firstAttribute="bottom" secondItem="Vfc-7p-LLs" secondAttribute="bottom" constant="10" id="t5D-ht-cSc"/>
+                                    <constraint firstItem="Vfc-7p-LLs" firstAttribute="leading" secondItem="rZH-h1-WTw" secondAttribute="leading" id="zAt-yf-7HQ"/>
+                                </constraints>
+                            </view>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Sessions" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="uMA-Dt-xTz">
+                                <rect key="frame" x="20" y="133" width="335" height="24"/>
+                                <fontDescription key="fontDescription" type="system" weight="semibold" pointSize="20"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="drr-Gd-5wA">
+                                <rect key="frame" x="0.0" y="167" width="375" height="500"/>
+                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <connections>
+                                    <outlet property="dataSource" destination="le3-e8-C1h" id="Xmr-jN-S8s"/>
+                                    <outlet property="delegate" destination="le3-e8-C1h" id="Y5J-nA-Ynp"/>
+                                </connections>
+                            </tableView>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="drr-Gd-5wA" firstAttribute="leading" secondItem="IXd-J2-Vex" secondAttribute="leading" id="52r-4B-JdK"/>
+                            <constraint firstItem="Kfr-Ho-krK" firstAttribute="trailing" secondItem="Eud-3V-Vqw" secondAttribute="trailing" id="9Zg-EV-cHL"/>
+                            <constraint firstItem="Eud-3V-Vqw" firstAttribute="trailing" secondItem="uMA-Dt-xTz" secondAttribute="trailing" constant="20" id="Amb-5F-Ors"/>
+                            <constraint firstAttribute="trailing" secondItem="drr-Gd-5wA" secondAttribute="trailing" id="Awf-hM-uzJ"/>
+                            <constraint firstItem="drr-Gd-5wA" firstAttribute="top" secondItem="uMA-Dt-xTz" secondAttribute="bottom" constant="10" id="H1a-sI-AbP"/>
+                            <constraint firstAttribute="bottom" secondItem="drr-Gd-5wA" secondAttribute="bottom" id="Nhh-Ps-Upr"/>
+                            <constraint firstItem="Kfr-Ho-krK" firstAttribute="top" secondItem="Eud-3V-Vqw" secondAttribute="top" id="Wxs-Uw-xoA"/>
+                            <constraint firstItem="uMA-Dt-xTz" firstAttribute="leading" secondItem="Eud-3V-Vqw" secondAttribute="leading" constant="20" id="an1-BC-BP0"/>
+                            <constraint firstItem="uMA-Dt-xTz" firstAttribute="top" secondItem="Kfr-Ho-krK" secondAttribute="bottom" constant="5" id="wok-Oq-W0z"/>
+                            <constraint firstItem="Eud-3V-Vqw" firstAttribute="leading" secondItem="Kfr-Ho-krK" secondAttribute="leading" id="xjg-JA-ZUT"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="Eud-3V-Vqw"/>
+                    </view>
+                    <connections>
+                        <outlet property="badgeImageImageView" destination="rZH-h1-WTw" id="M2a-7i-OoW"/>
+                        <outlet property="closeButton" destination="NBJ-A1-IP0" id="AYv-b7-fFp"/>
+                        <outlet property="informationLabel" destination="Vfc-7p-LLs" id="em9-jE-1wo"/>
+                        <outlet property="sessionsTableViewTitle" destination="uMA-Dt-xTz" id="vFU-UV-jMO"/>
+                        <outlet property="tableView" destination="drr-Gd-5wA" id="Cs0-pF-wwB"/>
+                        <outlet property="titleLabel" destination="fcs-Vl-AtB" id="iGp-kn-QfJ"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dBA-Zm-evE" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-463.19999999999999" y="-80.50974512743629"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="close_button" width="16" height="16"/>
+        <image name="encryption_warning" width="16" height="16"/>
+    </resources>
+</document>
@@ -0,0 +1,234 @@
+// File created from ScreenTemplate
+// $ createScreen.sh UserVerification UserVerificationSessionsStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+final class UserVerificationSessionsStatusViewController: UIViewController {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let estimatedRowHeight: CGFloat = 40.0
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+    
+    @IBOutlet private weak var badgeImageImageView: UIImageView!
+    @IBOutlet private weak var titleLabel: UILabel!
+    @IBOutlet private weak var closeButton: UIButton!
+    @IBOutlet private weak var informationLabel: UILabel!
+    @IBOutlet private weak var sessionsTableViewTitle: UILabel!
+    @IBOutlet private weak var tableView: UITableView!
+    
+    // MARK: Private
+
+    private var viewModel: UserVerificationSessionsStatusViewModelType!
+    private var theme: Theme!
+    private var errorPresenter: MXKErrorPresentation!
+    private var activityIndicatorPresenter: ActivityIndicatorPresenter!
+    private var sessionsStatusViewData: [UserVerificationSessionStatusViewData] = []
+    private var userEncryptionTrustLevel: UserEncryptionTrustLevel = .unknown
+
+    // MARK: - Setup
+    
+    class func instantiate(with viewModel: UserVerificationSessionsStatusViewModelType) -> UserVerificationSessionsStatusViewController {
+        let viewController = StoryboardScene.UserVerificationSessionsStatusViewController.initialScene.instantiate()
+        viewController.viewModel = viewModel
+        viewController.theme = ThemeService.shared().theme
+        return viewController
+    }
+    
+    // MARK: - Life cycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        // Do any additional setup after loading the view.
+                
+        self.setupViews()
+        self.vc_removeBackTitle()
+        self.activityIndicatorPresenter = ActivityIndicatorPresenter()
+        self.errorPresenter = MXKErrorAlertPresentation()
+        
+        self.registerThemeServiceDidChangeThemeNotification()
+        self.update(theme: self.theme)
+        
+        self.viewModel.viewDelegate = self
+
+        self.viewModel.process(viewAction: .loadData)
+    }
+    
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return self.theme.statusBarStyle
+    }
+    
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        
+        self.closeButton.layer.cornerRadius = self.closeButton.frame.size.width/2
+    }
+    
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        
+        if let selectedIndexPath = self.tableView.indexPathForSelectedRow {
+            self.tableView.deselectRow(at: selectedIndexPath, animated: animated)
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func update(theme: Theme) {
+        self.theme = theme
+        
+        self.view.backgroundColor = theme.headerBackgroundColor
+        
+        if let navigationBar = self.navigationController?.navigationBar {
+            theme.applyStyle(onNavigationBar: navigationBar)
+        }
+        
+        self.closeButton.vc_setBackgroundColor(theme.headerTextSecondaryColor, for: .normal)
+        self.titleLabel.textColor = theme.textPrimaryColor
+        self.informationLabel.textColor = theme.textPrimaryColor
+        self.sessionsTableViewTitle.textColor = theme.textPrimaryColor
+    }
+    
+    private func registerThemeServiceDidChangeThemeNotification() {
+        NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    @objc private func themeDidChange() {
+        self.update(theme: ThemeService.shared().theme)
+    }
+    
+    private func setupViews() {
+        self.closeButton.layer.masksToBounds = true
+        self.setupTableView()
+        self.updateTitleViews()
+        
+        self.sessionsTableViewTitle.text = VectorL10n.userVerificationSessionsListTableTitle
+        self.informationLabel.text = VectorL10n.userVerificationSessionsListInformation
+    }
+    
+    private func setupTableView() {
+        self.tableView.rowHeight = UITableView.automaticDimension
+        self.tableView.estimatedRowHeight = Constants.estimatedRowHeight
+        self.tableView.separatorStyle = .none
+        self.tableView.tableFooterView = UIView()
+        self.tableView.alwaysBounceVertical = false
+        
+        self.tableView.register(cellType: UserVerificationSessionStatusCell.self)
+    }
+    
+    private func render(viewState: UserVerificationSessionsStatusViewState) {
+        switch viewState {
+        case .loading:
+            self.renderLoading()
+        case .loaded(userTrustLevel: let userTrustLevel, sessionsStatusViewData: let sessionsStatusViewData):
+            self.renderLoaded(userTrustLevel: userTrustLevel, sessionsStatusViewData: sessionsStatusViewData)
+        case .error(let error):
+            self.render(error: error)
+        }
+    }
+
+    private func renderLoading() {
+        self.tableView.isUserInteractionEnabled = false
+        self.activityIndicatorPresenter.presentActivityIndicator(on: self.view, animated: true)
+    }
+    
+    private func renderLoaded(userTrustLevel: UserEncryptionTrustLevel, sessionsStatusViewData: [UserVerificationSessionStatusViewData]) {
+        self.activityIndicatorPresenter.removeCurrentActivityIndicator(animated: true)
+        self.tableView.isUserInteractionEnabled = true
+        
+        self.userEncryptionTrustLevel = userTrustLevel
+        self.sessionsStatusViewData = sessionsStatusViewData
+        
+        self.updateTitleViews()
+        self.tableView.reloadData()
+    }
+    
+    private func render(error: Error) {
+        self.activityIndicatorPresenter.removeCurrentActivityIndicator(animated: true)
+        self.tableView.isUserInteractionEnabled = true
+        self.errorPresenter.presentError(from: self, forError: error, animated: true, handler: nil)
+    }
+    
+    private func updateTitleViews() {
+        
+        let badgeImage: UIImage
+        let title: String
+        
+        switch self.userEncryptionTrustLevel {
+        case .trusted:
+            badgeImage = Asset.Images.encryptionTrusted.image
+            title = VectorL10n.userVerificationSessionsListUserTrustLevelTrustedTitle
+        case .warning:
+            badgeImage = Asset.Images.encryptionWarning.image
+            title = VectorL10n.userVerificationSessionsListUserTrustLevelWarningTitle
+        default:
+            badgeImage = Asset.Images.encryptionNormal.image
+            title = VectorL10n.userVerificationSessionsListUserTrustLevelUnknownTitle
+        }
+        
+        self.badgeImageImageView.image = badgeImage
+        self.titleLabel.text = title
+    }
+    
+    // MARK: - Actions
+
+    @IBAction private func closeButtonAction(_ sender: Any) {
+        self.viewModel.process(viewAction: .close)
+    }
+}
+
+// MARK: - UITableViewDataSource
+extension UserVerificationSessionsStatusViewController: UITableViewDataSource {
+    
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return self.sessionsStatusViewData.count
+    }
+    
+    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(for: indexPath, cellType: UserVerificationSessionStatusCell.self)
+        
+        let viewData = self.sessionsStatusViewData[indexPath.row]
+        
+        cell.update(theme: self.theme)
+        cell.fill(viewData: viewData)
+        
+        return cell
+    }
+}
+
+// MARK: - UITableViewDelegate
+extension UserVerificationSessionsStatusViewController: UITableViewDelegate {
+    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        let viewData = self.sessionsStatusViewData[indexPath.row]
+        self.viewModel.process(viewAction: .selectSession(deviceId: viewData.deviceId))
+    }
+}
+
+// MARK: - UserVerificationSessionsStatusViewModelViewDelegate
+extension UserVerificationSessionsStatusViewController: UserVerificationSessionsStatusViewModelViewDelegate {
+
+    func userVerificationSessionsStatusViewModel(_ viewModel: UserVerificationSessionsStatusViewModelType, didUpdateViewState viewSate: UserVerificationSessionsStatusViewState) {
+        self.render(viewState: viewSate)
+    }
+}
@@ -0,0 +1,148 @@
+// File created from ScreenTemplate
+// $ createScreen.sh UserVerification UserVerificationSessionsStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+enum UserVerificationSessionsStatusViewModelError: Error {
+    case unknown
+}
+
+final class UserVerificationSessionsStatusViewModel: UserVerificationSessionsStatusViewModelType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+
+    private let session: MXSession
+    private let userId: String
+    private var currentOperation: MXHTTPOperation?
+    private var userTrustLevel: UserEncryptionTrustLevel
+    
+    // MARK: Public
+
+    weak var viewDelegate: UserVerificationSessionsStatusViewModelViewDelegate?
+    weak var coordinatorDelegate: UserVerificationSessionsStatusViewModelCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession, userId: String) {
+        self.session = session
+        self.userId = userId
+        self.userTrustLevel = .unknown
+    }
+    
+    deinit {
+        self.currentOperation?.cancel()
+    }
+    
+    // MARK: - Public
+    
+    func process(viewAction: UserVerificationSessionsStatusViewAction) {
+        switch viewAction {
+        case .loadData:
+            self.loadData()
+        case .selectSession(deviceId: let deviceId):
+            self.coordinatorDelegate?.userVerificationSessionsStatusViewModel(self, didSelectDeviceWithId: deviceId, for: self.userId)
+        case .close:
+            self.coordinatorDelegate?.userVerificationSessionsStatusViewModelDidClose(self)
+        }
+    }
+    
+    // MARK: - Private
+
+    private func loadData() {
+        
+        let sessionsStatusViewData = self.getSessionStatusViewDataListFromCache(for: self.userId)
+        self.update(viewState: .loaded(userTrustLevel: self.userTrustLevel, sessionsStatusViewData: sessionsStatusViewData))
+        
+        self.fetchSessionStatus()
+    }
+    
+    private func update(viewState: UserVerificationSessionsStatusViewState) {
+        self.viewDelegate?.userVerificationSessionsStatusViewModel(self, didUpdateViewState: viewState)
+    }
+    
+    private func fetchSessionStatus() {
+        self.update(viewState: .loading)
+        
+        self.currentOperation = self.getSessionStatusViewDataList(for: self.userId) { result in
+            switch result {
+            case .success(let sessionsStatusViewData):
+                
+                let isUserTrusted = sessionsStatusViewData.contains(where: { sessionsStatusViewData -> Bool in
+                    return sessionsStatusViewData.isTrusted == false
+                }) == false
+                
+                let userTrustLevel: UserEncryptionTrustLevel = isUserTrusted ? .trusted : .warning
+                
+                self.update(viewState: .loaded(userTrustLevel: userTrustLevel, sessionsStatusViewData: sessionsStatusViewData))
+            case .failure(let error):
+                self.update(viewState: .error(error))
+            }
+        }
+    }
+    
+    private func getSessionStatusViewDataListFromCache(for userId: String) -> [UserVerificationSessionStatusViewData] {
+        let deviceInfoList = self.getDevicesFromCache(for: self.userId)
+        return self.sessionStatusViewDataList(from: deviceInfoList)
+    }
+    
+    private func getDevicesFromCache(for userId: String) -> [MXDeviceInfo] {
+        guard let deviceInfoMap = self.session.crypto.devices(forUser: self.userId) else {
+            return []
+        }
+        return Array(deviceInfoMap.values)
+    }
+    
+    @discardableResult
+    private func getSessionStatusViewDataList(for userId: String, completion: @escaping (Result<[UserVerificationSessionStatusViewData], Error>) -> Void) -> MXHTTPOperation? {
+        
+        let httpOperation: MXHTTPOperation?
+        
+        httpOperation = self.session.crypto.downloadKeys([self.userId], forceDownload: false, success: { ( usersDeviceMap: MXUsersDevicesMap<MXDeviceInfo>?, usersCrossSigningMap: [String : MXCrossSigningInfo]?) in
+            
+            let sessionsViewData: [UserVerificationSessionStatusViewData]
+            
+            if let usersDeviceMap = usersDeviceMap, let userDeviceInfoMap = Array(usersDeviceMap.map.values).first {
+                let deviceInfoList = Array(userDeviceInfoMap.values)
+                sessionsViewData = self.sessionStatusViewDataList(from: deviceInfoList)
+            } else {
+                sessionsViewData = []
+            }
+            
+            completion(.success(sessionsViewData))
+            
+        }, failure: { error in
+            
+            let finalError = error ?? UserVerificationSessionsStatusViewModelError.unknown
+            completion(.failure(finalError))
+        })
+        
+        return httpOperation
+    }
+    
+    private func sessionStatusViewData(from deviceInfo: MXDeviceInfo) -> UserVerificationSessionStatusViewData {
+        return UserVerificationSessionStatusViewData(deviceId: deviceInfo.deviceId, sessionName: deviceInfo.displayName ?? "", isTrusted: deviceInfo.trustLevel.isVerified)
+    }
+    
+    private func sessionStatusViewDataList(from deviceInfoList: [MXDeviceInfo]) -> [UserVerificationSessionStatusViewData] {
+        return deviceInfoList.map { (deviceInfo) -> UserVerificationSessionStatusViewData in
+            return self.sessionStatusViewData(from: deviceInfo)
+        }
+    }
+}
@@ -0,0 +1,37 @@
+// File created from ScreenTemplate
+// $ createScreen.sh UserVerification UserVerificationSessionsStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+protocol UserVerificationSessionsStatusViewModelViewDelegate: class {
+    func userVerificationSessionsStatusViewModel(_ viewModel: UserVerificationSessionsStatusViewModelType, didUpdateViewState viewSate: UserVerificationSessionsStatusViewState)
+}
+
+protocol UserVerificationSessionsStatusViewModelCoordinatorDelegate: class {
+    func userVerificationSessionsStatusViewModel(_ viewModel: UserVerificationSessionsStatusViewModelType, didSelectDeviceWithId deviceId: String, for userId: String)
+    func userVerificationSessionsStatusViewModelDidClose(_ viewModel: UserVerificationSessionsStatusViewModelType)
+}
+
+/// Protocol describing the view model used by `UserVerificationSessionsStatusViewController`
+protocol UserVerificationSessionsStatusViewModelType {
+            
+    var viewDelegate: UserVerificationSessionsStatusViewModelViewDelegate? { get set }
+    var coordinatorDelegate: UserVerificationSessionsStatusViewModelCoordinatorDelegate? { get set }
+    
+    func process(viewAction: UserVerificationSessionsStatusViewAction)
+}
@@ -0,0 +1,26 @@
+// File created from ScreenTemplate
+// $ createScreen.sh UserVerification UserVerificationSessionsStatus
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+/// UserVerificationSessionsStatusViewController view state
+enum UserVerificationSessionsStatusViewState {
+    case loading
+    case loaded(userTrustLevel: UserEncryptionTrustLevel, sessionsStatusViewData: [UserVerificationSessionStatusViewData])
+    case error(Error)
+}
@@ -0,0 +1,82 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Start UserVerificationStart
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+import UIKit
+
+final class UserVerificationStartCoordinator: UserVerificationStartCoordinatorType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let session: MXSession
+    private let roomMember: MXRoomMember
+    
+    private var userVerificationStartViewModel: UserVerificationStartViewModelType
+    private let userVerificationStartViewController: UserVerificationStartViewController
+    
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    
+    weak var delegate: UserVerificationStartCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession, roomMember: MXRoomMember) {
+        self.session = session
+        self.roomMember = roomMember
+        
+        let userVerificationStartViewModel = UserVerificationStartViewModel(session: self.session, roomMember: self.roomMember)
+        let userVerificationStartViewController = UserVerificationStartViewController.instantiate(with: userVerificationStartViewModel)
+        self.userVerificationStartViewModel = userVerificationStartViewModel
+        self.userVerificationStartViewController = userVerificationStartViewController
+    }
+    
+    // MARK: - Public methods
+    
+    func start() {            
+        self.userVerificationStartViewModel.coordinatorDelegate = self
+    }
+    
+    func toPresentable() -> UIViewController {
+        return self.userVerificationStartViewController
+    }
+}
+
+// MARK: - UserVerificationStartViewModelCoordinatorDelegate
+extension UserVerificationStartCoordinator: UserVerificationStartViewModelCoordinatorDelegate {
+    
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, otherDidAcceptRequest request: MXKeyVerificationRequest) {
+        self.delegate?.userVerificationStartCoordinator(self, otherDidAcceptRequest: request)
+    }
+    
+    func userVerificationStartViewModelDidCancel(_ viewModel: UserVerificationStartViewModelType) {
+        self.delegate?.userVerificationStartCoordinatorDidCancel(self)
+    }
+    
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, didCompleteWithIncomingTransaction transaction: MXSASTransaction) {
+        self.delegate?.userVerificationStartCoordinator(self, didCompleteWithOutgoingTransaction: transaction)
+    }
+    
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, didTransactionCancelled transaction: MXSASTransaction) {
+        self.delegate?.userVerificationStartCoordinator(self, didTransactionCancelled: transaction)
+    }
+}
@@ -0,0 +1,35 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Start UserVerificationStart
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+protocol UserVerificationStartCoordinatorDelegate: class {
+    
+    func userVerificationStartCoordinator(_ coordinator: UserVerificationStartCoordinatorType, otherDidAcceptRequest request: MXKeyVerificationRequest)
+    
+    func userVerificationStartCoordinator(_ coordinator: UserVerificationStartCoordinatorType, didCompleteWithOutgoingTransaction transaction: MXSASTransaction)
+    
+    func userVerificationStartCoordinator(_ coordinator: UserVerificationStartCoordinatorType, didTransactionCancelled transaction: MXSASTransaction)
+    
+    func userVerificationStartCoordinatorDidCancel(_ coordinator: UserVerificationStartCoordinatorType)
+}
+
+/// `UserVerificationStartCoordinatorType` is a protocol describing a Coordinator that handle key backup setup passphrase navigation flow.
+protocol UserVerificationStartCoordinatorType: Coordinator, Presentable {
+    var delegate: UserVerificationStartCoordinatorDelegate? { get }
+}
@@ -0,0 +1,26 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Start UserVerificationStart
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+/// UserVerificationStartViewController view actions exposed to view model
+enum UserVerificationStartViewAction {
+    case loadData
+    case startVerification
+    case cancel
+}
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="V8j-Lb-PgC">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--User Verification Start View Controller-->
+        <scene sceneID="mt5-wz-YKA">
+            <objects>
+                <viewController extendedLayoutIncludesOpaqueBars="YES" automaticallyAdjustsScrollViewInsets="NO" id="V8j-Lb-PgC" customClass="UserVerificationStartViewController" customModule="Riot" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="EL9-GA-lwo">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="dQD-Vs-7h6">
+                                <rect key="frame" x="0.0" y="254" width="375" height="179"/>
+                                <subviews>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="For extra security, verify @user:matrix.org by checking a one-time code on both your devices." textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="b2K-LP-jqv">
+                                        <rect key="frame" x="20" y="10" width="335" height="36"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                    <label hidden="YES" opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Waiting for User…" textAlignment="center" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="0QC-yi-0hN">
+                                        <rect key="frame" x="20" y="78" width="335" height="20.5"/>
+                                        <fontDescription key="fontDescription" type="system" weight="medium" pointSize="17"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                    <button opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="249" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="3sZ-h5-05D">
+                                        <rect key="frame" x="20" y="66" width="335" height="44"/>
+                                        <accessibility key="accessibilityConfiguration" identifier="AuthenticationVCLoginButton"/>
+                                        <constraints>
+                                            <constraint firstAttribute="height" constant="44" id="2qO-rj-st6"/>
+                                            <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="100" id="8kK-yb-srh"/>
+                                        </constraints>
+                                        <fontDescription key="fontDescription" type="system" weight="medium" pointSize="17"/>
+                                        <inset key="contentEdgeInsets" minX="30" minY="0.0" maxX="30" maxY="0.0"/>
+                                        <state key="normal" title="Start Verification">
+                                            <color key="titleColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                            <color key="titleShadowColor" red="0.5" green="0.5" blue="0.5" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                        </state>
+                                        <connections>
+                                            <action selector="startVerificationButtonAction:" destination="V8j-Lb-PgC" eventType="touchUpInside" id="3Nd-Km-ucJ"/>
+                                        </connections>
+                                    </button>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="To be secure, do this in person or use another way to communicate." textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Vli-IZ-UjP">
+                                        <rect key="frame" x="20" y="130" width="335" height="29"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="12"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                </subviews>
+                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <constraints>
+                                    <constraint firstItem="3sZ-h5-05D" firstAttribute="centerX" secondItem="dQD-Vs-7h6" secondAttribute="centerX" id="2OM-Zh-gnO"/>
+                                    <constraint firstAttribute="trailing" secondItem="0QC-yi-0hN" secondAttribute="trailing" constant="20" id="70Z-qZ-AG4"/>
+                                    <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="3sZ-h5-05D" secondAttribute="trailing" constant="20" id="ABg-Iy-IdN"/>
+                                    <constraint firstItem="Vli-IZ-UjP" firstAttribute="top" secondItem="3sZ-h5-05D" secondAttribute="bottom" constant="20" id="BIE-UM-I0Z"/>
+                                    <constraint firstItem="3sZ-h5-05D" firstAttribute="top" secondItem="b2K-LP-jqv" secondAttribute="bottom" constant="20" id="HCf-2F-jBr"/>
+                                    <constraint firstItem="Vli-IZ-UjP" firstAttribute="leading" secondItem="dQD-Vs-7h6" secondAttribute="leading" constant="20" id="Nz0-mv-fF5"/>
+                                    <constraint firstItem="3sZ-h5-05D" firstAttribute="width" secondItem="dQD-Vs-7h6" secondAttribute="width" priority="250" id="RuV-mq-5JZ"/>
+                                    <constraint firstAttribute="trailing" secondItem="Vli-IZ-UjP" secondAttribute="trailing" constant="20" id="XXe-5j-SxE"/>
+                                    <constraint firstAttribute="bottom" secondItem="Vli-IZ-UjP" secondAttribute="bottom" constant="20" id="Yfh-kG-UKJ"/>
+                                    <constraint firstItem="b2K-LP-jqv" firstAttribute="leading" secondItem="dQD-Vs-7h6" secondAttribute="leading" constant="20" id="dgE-c5-D4E"/>
+                                    <constraint firstItem="0QC-yi-0hN" firstAttribute="leading" secondItem="dQD-Vs-7h6" secondAttribute="leading" constant="20" id="g4e-WC-LQ7"/>
+                                    <constraint firstItem="0QC-yi-0hN" firstAttribute="centerY" secondItem="3sZ-h5-05D" secondAttribute="centerY" id="hqE-9r-yhx"/>
+                                    <constraint firstAttribute="height" priority="250" id="j1W-Y7-dYc"/>
+                                    <constraint firstItem="3sZ-h5-05D" firstAttribute="leading" relation="greaterThanOrEqual" secondItem="dQD-Vs-7h6" secondAttribute="leading" constant="20" id="oP3-BI-kYI"/>
+                                    <constraint firstAttribute="trailing" secondItem="b2K-LP-jqv" secondAttribute="trailing" constant="20" id="uJ5-fk-7Xw"/>
+                                    <constraint firstItem="b2K-LP-jqv" firstAttribute="top" secondItem="dQD-Vs-7h6" secondAttribute="top" constant="10" id="vlb-Yg-HWD"/>
+                                </constraints>
+                            </view>
+                        </subviews>
+                        <color key="backgroundColor" red="0.94509803921568625" green="0.96078431372549022" blue="0.97254901960784312" alpha="1" colorSpace="calibratedRGB"/>
+                        <constraints>
+                            <constraint firstItem="dQD-Vs-7h6" firstAttribute="centerY" secondItem="bFg-jh-JZB" secondAttribute="centerY" id="GmI-7r-ejI"/>
+                            <constraint firstItem="dQD-Vs-7h6" firstAttribute="trailing" secondItem="bFg-jh-JZB" secondAttribute="trailing" id="XX2-fS-8cb"/>
+                            <constraint firstItem="dQD-Vs-7h6" firstAttribute="leading" secondItem="bFg-jh-JZB" secondAttribute="leading" id="yKt-js-MnW"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="bFg-jh-JZB"/>
+                    </view>
+                    <connections>
+                        <outlet property="additionalInformationLabel" destination="Vli-IZ-UjP" id="4UB-LL-Om3"/>
+                        <outlet property="informationLabel" destination="b2K-LP-jqv" id="O4J-7t-Dn6"/>
+                        <outlet property="startVerificationButton" destination="3sZ-h5-05D" id="vNi-m9-x7g"/>
+                        <outlet property="verificationWaitingLabel" destination="0QC-yi-0hN" id="Qoz-cV-Su7"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="zK0-v6-7Wt" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-3198" y="-647"/>
+        </scene>
+    </scenes>
+</document>
@@ -0,0 +1,230 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Start UserVerificationStart
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+final class UserVerificationStartViewController: UIViewController {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let verifyButtonCornerRadius: CGFloat = 8.0
+        static let informationTextDefaultFont = UIFont.systemFont(ofSize: 15.0)
+        static let informationTextBoldFont = UIFont.systemFont(ofSize: 15.0, weight: .medium)        
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+
+    @IBOutlet private weak var informationLabel: UILabel!
+    
+    @IBOutlet private weak var startVerificationButton: UIButton!
+    @IBOutlet private weak var verificationWaitingLabel: UILabel!
+    
+    @IBOutlet private weak var additionalInformationLabel: UILabel!
+    
+    // MARK: Private
+
+    private var viewModel: UserVerificationStartViewModelType!
+    private var theme: Theme!
+    private var errorPresenter: MXKErrorPresentation!
+    private var activityPresenter: ActivityIndicatorPresenter!
+
+    // MARK: - Setup
+    
+    class func instantiate(with viewModel: UserVerificationStartViewModelType) -> UserVerificationStartViewController {
+        let viewController = StoryboardScene.UserVerificationStartViewController.initialScene.instantiate()
+        viewController.viewModel = viewModel
+        viewController.theme = ThemeService.shared().theme
+        return viewController
+    }
+    
+    // MARK: - Life cycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        // Do any additional setup after loading the view.
+        
+        self.title = VectorL10n.keyVerificationUserTitle
+        
+        self.setupViews()
+        
+        self.activityPresenter = ActivityIndicatorPresenter()
+        self.errorPresenter = MXKErrorAlertPresentation()
+        
+        self.registerThemeServiceDidChangeThemeNotification()
+        self.update(theme: self.theme)
+        
+        self.viewModel.viewDelegate = self
+
+        self.viewModel.process(viewAction: .loadData)
+    }
+    
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return self.theme.statusBarStyle
+    }
+    
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        
+        self.startVerificationButton.layer.cornerRadius = Constants.verifyButtonCornerRadius
+    }
+    
+    // MARK: - Private
+    
+    private func update(theme: Theme) {
+        self.theme = theme
+        
+        self.view.backgroundColor = theme.headerBackgroundColor
+        
+        if let navigationBar = self.navigationController?.navigationBar {
+            theme.applyStyle(onNavigationBar: navigationBar)
+        }
+        
+        self.informationLabel.textColor = theme.textPrimaryColor
+        self.startVerificationButton.vc_setBackgroundColor(theme.tintColor, for: .normal)
+        self.verificationWaitingLabel.textColor = theme.textSecondaryColor
+        self.additionalInformationLabel.textColor = theme.textSecondaryColor
+    }
+    
+    private func registerThemeServiceDidChangeThemeNotification() {
+        NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    @objc private func themeDidChange() {
+        self.update(theme: ThemeService.shared().theme)
+    }
+    
+    private func setupViews() {
+        let cancelBarButtonItem = MXKBarButtonItem(title: VectorL10n.cancel, style: .plain) { [weak self] in
+            self?.cancelButtonAction()
+        }
+        
+        self.navigationItem.rightBarButtonItem = cancelBarButtonItem
+        
+        self.startVerificationButton.layer.masksToBounds = true
+        self.startVerificationButton.setTitle(VectorL10n.userVerificationStartVerifyAction, for: .normal)
+        self.additionalInformationLabel.text = VectorL10n.userVerificationStartAdditionalInformation
+    }
+
+    private func render(viewState: UserVerificationStartViewState) {
+        switch viewState {
+        case .loading:
+            self.renderLoading()
+        case .loaded(let viewData):
+            self.renderLoaded(viewData: viewData)
+        case .error(let error):
+            self.render(error: error)
+        case .verificationPending:
+            self.renderVerificationPending()
+        case .cancelled(let reason):
+            self.renderCancelled(reason: reason)
+        case .cancelledByMe(let reason):
+            self.renderCancelledByMe(reason: reason)
+        }
+    }
+    
+    private func renderLoading() {
+        self.activityPresenter.presentActivityIndicator(on: self.view, animated: true)
+    }
+    
+    private func renderLoaded(viewData: UserVerificationStartViewData) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        
+        self.informationLabel.attributedText = self.buildInformationAttributedText(with: viewData.userId)
+        self.verificationWaitingLabel.text = self.buildVerificationWaitingText(with: viewData)
+    }
+    
+    private func render(error: Error) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        self.errorPresenter.presentError(from: self, forError: error, animated: true, handler: nil)
+    }
+    
+    private func renderVerificationPending() {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        self.startVerificationButton.isHidden = true
+        self.verificationWaitingLabel.isHidden = false
+    }
+
+    private func renderCancelled(reason: MXTransactionCancelCode) {
+        self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+
+        self.errorPresenter.presentError(from: self, title: "", message: VectorL10n.deviceVerificationCancelled, animated: true) {
+            self.viewModel.process(viewAction: .cancel)
+        }
+    }
+    
+    private func renderCancelledByMe(reason: MXTransactionCancelCode) {
+        if reason.value != MXTransactionCancelCode.user().value {
+            self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+            
+            self.errorPresenter.presentError(from: self, title: "", message: VectorL10n.deviceVerificationCancelledByMe(reason.humanReadable), animated: true) {
+                self.viewModel.process(viewAction: .cancel)
+            }
+        } else {
+            self.activityPresenter.removeCurrentActivityIndicator(animated: true)
+        }
+    }
+    
+    private func buildInformationAttributedText(with userId: String) -> NSAttributedString {
+        
+        let informationAttributedText: NSMutableAttributedString = NSMutableAttributedString()
+        
+        let informationTextDefaultAttributes: [NSAttributedString.Key: Any] = [.foregroundColor: self.theme.textPrimaryColor,
+                                                                               .font: Constants.informationTextDefaultFont]
+        
+        let informationTextBoldAttributes: [NSAttributedString.Key: Any] = [.foregroundColor: self.theme.textPrimaryColor,
+                                                                            .font: Constants.informationTextBoldFont]
+        
+        let informationAttributedStringPart1 = NSAttributedString(string: VectorL10n.userVerificationStartInformationPart1, attributes: informationTextDefaultAttributes)
+        let informationAttributedStringPart2 = NSAttributedString(string: userId, attributes: informationTextBoldAttributes)
+        let informationAttributedStringPart3 = NSAttributedString(string: VectorL10n.userVerificationStartInformationPart2, attributes: informationTextDefaultAttributes)
+        
+        informationAttributedText.append(informationAttributedStringPart1)
+        informationAttributedText.append(informationAttributedStringPart2)
+        informationAttributedText.append(informationAttributedStringPart3)
+        
+        return informationAttributedText
+    }
+    
+    private func buildVerificationWaitingText(with viewData: UserVerificationStartViewData) -> String {
+        let userName = viewData.userDisplayName ?? viewData.userId
+        return VectorL10n.userVerificationStartWaitingPartner(userName)
+    }
+    
+    // MARK: - Actions
+
+    @IBAction private func startVerificationButtonAction(_ sender: Any) {
+        self.viewModel.process(viewAction: .startVerification)
+    }
+
+    private func cancelButtonAction() {
+        self.viewModel.process(viewAction: .cancel)
+    }
+}
+
+
+// MARK: - UserVerificationStartViewModelViewDelegate
+extension UserVerificationStartViewController: UserVerificationStartViewModelViewDelegate {
+
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, didUpdateViewState viewSate: UserVerificationStartViewState) {
+        self.render(viewState: viewSate)
+    }
+}
@@ -0,0 +1,162 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Start UserVerificationStart
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+enum UserVerificationStartViewModelError: Error {
+    case keyVerificationRequestExpired
+}
+
+struct UserVerificationStartViewData {
+    let userId: String
+    let userDisplayName: String?
+    let userAvatarURL: String?
+}
+
+final class UserVerificationStartViewModel: UserVerificationStartViewModelType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+
+    private let session: MXSession
+    private let roomMember: MXRoomMember
+    private let verificationManager: MXKeyVerificationManager
+    private let keyVerificationService: KeyVerificationService
+    
+    private var keyVerificationRequest: MXKeyVerificationRequest?
+    
+    private var viewData: UserVerificationStartViewData {
+        return UserVerificationStartViewData(userId: self.roomMember.userId, userDisplayName: self.roomMember.displayname, userAvatarURL: self.roomMember.avatarUrl)
+    }
+    
+    // MARK: Public        
+
+    weak var viewDelegate: UserVerificationStartViewModelViewDelegate?
+    weak var coordinatorDelegate: UserVerificationStartViewModelCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession, roomMember: MXRoomMember) {
+        self.session = session
+        self.verificationManager = session.crypto.keyVerificationManager
+        self.roomMember = roomMember
+        self.keyVerificationService = KeyVerificationService()
+    }
+    
+    deinit {
+    }
+    
+    // MARK: - Public
+    
+    func process(viewAction: UserVerificationStartViewAction) {
+        switch viewAction {
+        case .loadData:
+            self.loadData()
+        case .startVerification:
+            self.startVerification()
+        case .cancel:
+            self.cancelKeyVerificationRequest()
+            self.coordinatorDelegate?.userVerificationStartViewModelDidCancel(self)
+        }
+    }
+    
+    // MARK: - Private
+    
+    private func loadData() {
+        self.update(viewState: .loaded(self.viewData))
+    }
+    
+    private func startVerification() {
+        self.update(viewState: .verificationPending)
+        
+        self.verificationManager.requestVerificationByDM(withUserId: self.roomMember.userId,
+                                                         roomId: nil,
+                                                         fallbackText: "",
+                                                         methods: self.keyVerificationService.supportedKeyVerificationMethods(),
+                                                         success: { [weak self] (keyVerificationRequest) in
+                                                            guard let self = self else {
+                                                                return
+                                                            }
+                                                            
+                                                            self.keyVerificationRequest = keyVerificationRequest
+                                                            self.update(viewState: .loaded(self.viewData))
+                                                            self.registerKeyVerificationRequestDidChangeNotification(for: keyVerificationRequest)
+        }, failure: { [weak self]  error in
+            self?.update(viewState: .error(error))
+        })
+    }
+    
+    private func update(viewState: UserVerificationStartViewState) {
+        self.viewDelegate?.userVerificationStartViewModel(self, didUpdateViewState: viewState)
+    }
+    
+    private func cancelKeyVerificationRequest() {
+        guard let keyVerificationRequest = self.keyVerificationRequest  else {
+            return
+        }
+
+        keyVerificationRequest.cancel(with: MXTransactionCancelCode.user(), success: nil, failure: nil)
+    }
+    
+    // MARK: - MXKeyVerificationRequestDidChange
+    
+    private func registerKeyVerificationRequestDidChangeNotification(for keyVerificationRequest: MXKeyVerificationRequest) {
+        NotificationCenter.default.addObserver(self, selector: #selector(keyVerificationRequestDidChange(notification:)), name: .MXKeyVerificationRequestDidChange, object: keyVerificationRequest)
+    }
+    
+    private func unregisterKeyVerificationRequestDidChangeNotification() {
+        NotificationCenter.default.removeObserver(self, name: .MXKeyVerificationRequestDidChange, object: nil)
+    }
+    
+    @objc private func keyVerificationRequestDidChange(notification: Notification) {
+        guard let keyVerificationRequest = notification.object as? MXKeyVerificationByDMRequest else {
+            return
+        }
+        
+        guard let currentKeyVerificationRequest = self.keyVerificationRequest, keyVerificationRequest.requestId == currentKeyVerificationRequest.requestId else {
+            return
+        }
+        
+        switch keyVerificationRequest.state {
+        case MXKeyVerificationRequestStateAccepted:            
+            self.unregisterKeyVerificationRequestDidChangeNotification()
+            self.coordinatorDelegate?.userVerificationStartViewModel(self, otherDidAcceptRequest: currentKeyVerificationRequest)
+        case MXKeyVerificationRequestStateReady:
+            self.unregisterKeyVerificationRequestDidChangeNotification()
+            self.coordinatorDelegate?.userVerificationStartViewModel(self, otherDidAcceptRequest: currentKeyVerificationRequest)
+        case MXKeyVerificationRequestStateCancelled:
+            guard let reason = keyVerificationRequest.reasonCancelCode else {
+                return
+            }
+            self.unregisterKeyVerificationRequestDidChangeNotification()
+            self.update(viewState: .cancelled(reason))
+        case MXKeyVerificationRequestStateCancelledByMe:
+            guard let reason = keyVerificationRequest.reasonCancelCode else {
+                return
+            }
+            self.unregisterKeyVerificationRequestDidChangeNotification()
+            self.update(viewState: .cancelledByMe(reason))
+        case MXKeyVerificationRequestStateExpired:
+            self.unregisterKeyVerificationRequestDidChangeNotification()
+            self.update(viewState: .error(UserVerificationStartViewModelError.keyVerificationRequestExpired))
+        default:
+            break
+        }
+    }
+}
@@ -0,0 +1,43 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Start UserVerificationStart
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+protocol UserVerificationStartViewModelViewDelegate: class {
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, didUpdateViewState viewSate: UserVerificationStartViewState)
+}
+
+protocol UserVerificationStartViewModelCoordinatorDelegate: class {
+    
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, otherDidAcceptRequest request: MXKeyVerificationRequest)
+    
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, didCompleteWithIncomingTransaction transaction: MXSASTransaction)
+    
+    func userVerificationStartViewModel(_ viewModel: UserVerificationStartViewModelType, didTransactionCancelled transaction: MXSASTransaction)
+    
+    func userVerificationStartViewModelDidCancel(_ viewModel: UserVerificationStartViewModelType)
+}
+
+/// Protocol describing the view model used by `UserVerificationStartViewController`
+protocol UserVerificationStartViewModelType {
+            
+    var viewDelegate: UserVerificationStartViewModelViewDelegate? { get set }
+    var coordinatorDelegate: UserVerificationStartViewModelCoordinatorDelegate? { get set }
+    
+    func process(viewAction: UserVerificationStartViewAction)
+}
@@ -0,0 +1,29 @@
+// File created from ScreenTemplate
+// $ createScreen.sh Start UserVerificationStart
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+/// UserVerificationStartViewController view state
+enum UserVerificationStartViewState {
+    case loading
+    case loaded(UserVerificationStartViewData)
+    case verificationPending
+    case cancelled(MXTransactionCancelCode)
+    case cancelledByMe(MXTransactionCancelCode)
+    case error(Error)
+}
@@ -0,0 +1,183 @@
+// File created from FlowTemplate
+// $ createRootCoordinator.sh UserVerification UserVerification
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+@objcMembers
+final class UserVerificationCoordinator: NSObject, UserVerificationCoordinatorType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let presenter: Presentable
+    private let navigationRouter: NavigationRouterType
+    private let session: MXSession
+    private let userId: String
+    private let userDisplayName: String?
+    private var deviceId: String?
+    
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    
+    weak var delegate: UserVerificationCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(presenter: Presentable, session: MXSession, userId: String, userDisplayName: String?) {
+        self.presenter = presenter
+        self.navigationRouter = NavigationRouter(navigationController: RiotNavigationController())
+        self.session = session
+        self.userId = userId
+        self.userDisplayName = userDisplayName
+    }
+    
+    convenience init(presenter: Presentable, session: MXSession, userId: String, userDisplayName: String?, deviceId: String) {
+        self.init(presenter: presenter, session: session, userId: userId, userDisplayName: userDisplayName)
+        self.deviceId = deviceId
+    }
+    
+    // MARK: - Public methods
+    
+    func start() {
+        // Do not start again if existing coordinators are presented
+        guard self.childCoordinators.isEmpty else {
+            return
+        }
+        
+        guard self.session.crypto.crossSigning.isBootstrapped else {
+            self.presentBootstrapNotSetup()
+            return
+        }
+        
+        let rootCoordinator: Coordinator & Presentable
+        
+        if let deviceId = self.deviceId {
+            rootCoordinator = self.createSessionStatusCoordinator(with: deviceId, for: self.userId, userDisplayName: self.userDisplayName)
+        } else {
+            rootCoordinator = self.createUserVerificationSessionsStatusCoordinator()
+        }
+        
+        rootCoordinator.start()
+
+        self.add(childCoordinator: rootCoordinator)
+        
+        self.navigationRouter.setRootModule(rootCoordinator, hideNavigationBar: true, animated: false, popCompletion: {
+            self.remove(childCoordinator: rootCoordinator)
+        })
+        
+        let rootViewController = self.navigationRouter.toPresentable()
+        rootViewController.modalPresentationStyle = .formSheet
+        
+        self.presenter.toPresentable().present(rootViewController, animated: true, completion: nil)
+    }
+    
+    func toPresentable() -> UIViewController {
+        return self.navigationRouter.toPresentable()
+    }
+    
+    // MARK: - Private methods
+    
+    private func createUserVerificationSessionsStatusCoordinator() -> UserVerificationSessionsStatusCoordinator {
+        let coordinator = UserVerificationSessionsStatusCoordinator(session: self.session, userId: self.userId)
+        coordinator.delegate = self
+        return coordinator
+    }
+    
+    private func createSessionStatusCoordinator(with deviceId: String, for userId: String, userDisplayName: String?) -> UserVerificationSessionStatusCoordinator {
+        let coordinator = UserVerificationSessionStatusCoordinator(session: self.session, userId: userId, userDisplayName: userDisplayName, deviceId: deviceId)
+        coordinator.delegate = self
+        return coordinator
+    }
+    
+    private func presentSessionStatus(with deviceId: String, for userId: String, userDisplayName: String?) {
+        let coordinator = self.createSessionStatusCoordinator(with: deviceId, for: userId, userDisplayName: userDisplayName)
+        coordinator.start()
+        
+        self.navigationRouter.push(coordinator, animated: true) {
+            self.remove(childCoordinator: coordinator)
+        }
+    }
+    
+    private func presentDeviceVerification(for deviceId: String) {
+        
+        let keyVerificationCoordinator = KeyVerificationCoordinator(navigationRouter: self.navigationRouter, session: self.session, userId: self.userId, otherDeviceId: deviceId)
+        keyVerificationCoordinator.delegate = self
+        keyVerificationCoordinator.start()
+        
+        self.add(childCoordinator: keyVerificationCoordinator)
+        
+        self.navigationRouter.push(keyVerificationCoordinator, animated: true, popCompletion: {
+            self.remove(childCoordinator: keyVerificationCoordinator)
+        })
+    }
+    
+    private func presentBootstrapNotSetup() {
+        let alert = UIAlertController(title: VectorL10n.keyVerificationBootstrapNotSetupTitle,
+                                      message: VectorL10n.keyVerificationBootstrapNotSetupMessage,
+                                      preferredStyle: .alert)
+        
+        let cancelAction = UIAlertAction(title: Bundle.mxk_localizedString(forKey: "ok"), style: .cancel, handler: { _ in
+        })
+        alert.addAction(cancelAction)
+        
+        self.presenter.toPresentable().present(alert, animated: true, completion: nil)        
+    }
+}
+
+// MARK: - UserVerificationSessionsStatusCoordinatorDelegate
+extension UserVerificationCoordinator: UserVerificationSessionsStatusCoordinatorDelegate {
+    func userVerificationSessionsStatusCoordinatorDidClose(_ coordinator: UserVerificationSessionsStatusCoordinatorType) {
+        
+        self.presenter.toPresentable().dismiss(animated: true) {
+            self.remove(childCoordinator: coordinator)
+        }
+    }
+    
+    func userVerificationSessionsStatusCoordinator(_ coordinator: UserVerificationSessionsStatusCoordinatorType, didSelectDeviceWithId deviceId: String, for userId: String) {
+        self.presentSessionStatus(with: deviceId, for: userId, userDisplayName: self.userDisplayName)
+    }
+}
+
+// MARK: - UserVerificationSessionStatusCoordinatorDelegate
+extension UserVerificationCoordinator: UserVerificationSessionStatusCoordinatorDelegate {
+    
+    func userVerificationSessionStatusCoordinator(_ coordinator: UserVerificationSessionStatusCoordinatorType, wantsToManuallyVerifyDeviceWithId deviceId: String, for userId: String) {
+        
+        self.presentDeviceVerification(for: deviceId)
+    }
+    
+    func userVerificationSessionStatusCoordinatorDidClose(_ coordinator: UserVerificationSessionStatusCoordinatorType) {
+        
+        self.presenter.toPresentable().dismiss(animated: true) {
+            self.remove(childCoordinator: coordinator)
+        }
+    }
+}
+
+// MARK: - UserVerificationCoordinatorDelegate
+extension UserVerificationCoordinator: KeyVerificationCoordinatorDelegate {
+    
+    func keyVerificationCoordinatorDidComplete(_ coordinator: KeyVerificationCoordinatorType, otherUserId: String, otherDeviceId: String) {
+        self.presenter.toPresentable().dismiss(animated: true) {
+            self.remove(childCoordinator: coordinator)
+        }
+    }
+}
@@ -0,0 +1,84 @@
+// File created from FlowTemplate
+// $ createRootCoordinator.sh UserVerification UserVerification
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+@objc protocol UserVerificationCoordinatorBridgePresenterDelegate {
+    func userVerificationCoordinatorBridgePresenterDelegateDidComplete(_ coordinatorBridgePresenter: UserVerificationCoordinatorBridgePresenter)
+}
+
+/// UserVerificationCoordinatorBridgePresenter enables to start UserVerificationCoordinator from a view controller.
+/// This bridge is used while waiting for global usage of coordinator pattern.
+@objcMembers
+final class UserVerificationCoordinatorBridgePresenter: NSObject {
+    
+    // MARK: - Properties
+    
+    // MARK: Private    
+    
+    private let presenter: Presentable
+    private let session: MXSession
+    private let userId: String
+    private let userDisplayName: String?
+    private var deviceId: String?
+    
+    private var coordinator: Coordinator?
+    
+    // MARK: Public
+    
+    weak var delegate: UserVerificationCoordinatorBridgePresenterDelegate?
+    
+    // MARK: - Setup
+    
+    init(presenter: UIViewController, session: MXSession, userId: String, userDisplayName: String?) {
+        self.presenter = presenter
+        self.session = session
+        self.userId = userId
+        self.userDisplayName = userDisplayName
+        super.init()
+    }
+    
+    init(presenter: UIViewController, session: MXSession, userId: String, userDisplayName: String?, deviceId: String) {
+        self.presenter = presenter
+        self.session = session
+        self.userId = userId
+        self.userDisplayName = userDisplayName
+        self.deviceId = deviceId
+        super.init()
+    }
+    
+    // MARK: - Public
+    
+    func start() {
+        self.present()
+    }
+    
+    func present() {
+        
+        let userVerificationCoordinator: UserVerificationCoordinator
+        
+        if let deviceId = self.deviceId {
+            userVerificationCoordinator = UserVerificationCoordinator(presenter: self.presenter, session: self.session, userId: self.userId, userDisplayName: self.userDisplayName, deviceId: deviceId)
+        } else {
+            userVerificationCoordinator = UserVerificationCoordinator(presenter: self.presenter, session: self.session, userId: self.userId, userDisplayName: self.userDisplayName)
+        }
+        
+        userVerificationCoordinator.start()
+        self.coordinator = userVerificationCoordinator
+    }
+}
@@ -0,0 +1,28 @@
+// File created from FlowTemplate
+// $ createRootCoordinator.sh UserVerification UserVerification
+/*
+ Copyright 2020 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+protocol UserVerificationCoordinatorDelegate: class {
+    func userVerificationCoordinatorDidComplete(_ coordinator: UserVerificationCoordinatorType)
+}
+
+/// `UserVerificationCoordinatorType` is a protocol describing a Coordinator that handle user verification navigation flow.
+protocol UserVerificationCoordinatorType: Coordinator, Presentable {
+    var delegate: UserVerificationCoordinatorDelegate? { get }
+}