[Story] EX: Incoming device verification request

[manuroe]

Description

• As a user
• I want to use EX to verify a new login that happened on another matrix client.
• So that I can verify any new login using EX instead of depending on another matrix client like EW to do so

Design: https://www.figma.com/design/pDlJZGBsri47FNTXMnEdXB/Compound-Android-Templates?node-id=819-22988&t=bTS0BUh3clntn0mX-4

Leads

• Tech: @stefanceriu
• Design:

Time sheeting

ER-49 EX: (Incoming) Device Verification by Emoji

Acceptance criteria

• EX detects and displays incoming verification request
• The user can successfully verify the new login using EX

Size estimate

None

Dependencies

• None

Out of scope

• QR code login. Displaying a QR code on EX will happen later.

Open questions

### Questions

Subtasks

### Android
- [ ] https://github.com/element-hq/element-x-android/issues/3120

### iOS
- [ ] https://github.com/element-hq/element-x-ios/issues/1227

### Rust
- [ ] https://github.com/matrix-org/matrix-rust-sdk/issues/3595
- [ ] https://github.com/matrix-org/matrix-rust-sdk/pull/4153

### Other

[alanjsebas]

Any ETA for how long this might take to implement, no intention to rush anyone I kinda screwed it up because I uninstalled the main element app on Android, and after an update to Element on Windows...the Ex is the only one with device verification and access to past messages.

I expected at least the Windows one to retain verification and messages before but now its all gone.

[stefanceriu]

Any ETA for how long this might take to implement, no intention to rush anyone I kinda screwed it up because I uninstalled the main element app on Android, and after an update to Element on Windows...the Ex is the only one with device verification and access to past messages.

I expected at least the Windows one to retain verification and messages before but now its all gone.

Hi, it shouldn't take particularly long but I can't speak to exact timings. Meanwhile you might want to have a look at setting up chat backup and a recovery key, which you can then use to verify other devices and retrieve your keys.