
Signal, the privacy-focused messaging platform, is rolling out a groundbreaking feature that enables users to synchronize their message history across multiple devices. This new functionality allows users to transfer their chat history from their primary iOS or Android devices to secondary devices such as desktops and iPads.
Security and Privacy Features:
– Fully end-to-end encrypted transfer process
– QR code verification for authorization
– Local storage of communications
– 256-bit AES encryption key for secure transfers
Transfer Process:
1. Generate QR code on new device
2. Scan code from primary device
3. Create secure “provisioning address”
4. Transfer encrypted archive containing:
– Text messages
– Stickers
– Call history
– Group updates
– Quotes and reactions
– Delivery/read receipts
Media Handling:
– 45-day retention period for media files
– Media stored in encrypted form on Signal servers
– Links to attachments transferred instead of actual files
– Signal considering extension of media retention period
Future Developments:
– Potential message restoration mechanism for lost/damaged devices
– Beta testing available through Signal Beta program
This update maintains Signal’s commitment to privacy while addressing user demands for seamless multi-device functionality.