Signal brings encrypted local backups to iOS and desktop, adds cross-platform restore
Signal 8.30 brings end-to-end encrypted local backups to iOS and desktop plus cross-platform restore between Android and iPhone.
Signal completed its backup overhaul with iOS 8.30, adding local on-device backups for iOS and Desktop and cross-platform restore across Android, iOS, Linux, macOS, and Windows. Hosted backups keep full message history free with the last 45 days of media, while paid users can back up to 100GB of media. Hosted backups use a daily-rotating second key stored in a Trusted Execution Environment for forward secrecy; local backups rely solely on the user's recovery key.
- Local backups now supported on iOS and Signal Desktop; Android rebuilt to same format
- Hosted service free for messages plus 45 days media; paid tier up to 100GB
- Daily-rotating TEE-held second key adds forward secrecy to hosted backups
- Disappearing messages under 24 hours excluded from both backup types
From the original article
2 min read at helpnetsecurity.com
Signal users who switch from an Android phone to an iPhone, or the other way around, can take their message history with them, and backups can be restored on Android, iOS, Linux, macOS and Windows. The option is part of a set of backup updates the company finished rolling out with Signal for iOS version 8. 30.
By Sinisa Markovic · helpnetsecurity.com
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