4 ms·

The very low quality photos for one android in your group chat is very annoying. Recommended to email them. Encryption will also be worse for RCS vs iPhone to i

The very low quality photos for one android in your group chat is very annoying. Recommended to email them. Encryption will also be worse for RCS vs iPhone to iPhone. https://old.reddit.com/r/AndroidQuestions/comments/o1mmd9/receiving_blurry_pixelated_photos_and_screenshots/ https://old.reddit.com/r/AndroidQuestions/comments/o1mmd9/re...

olliej 3y ago
Well yes, RCS is not encrypted
- fulafel 3y ago
  It's transport encrypted but not e2e without extensions. Will be interesting to see if Apple implements Android's e2e crypto in RCS (would it need cooperation from Google?).
  - olliej 3y ago
    transport encryption is literally the bare minimum for anything on the network these days (to the extent that iOS endeavors straight up blocks all the standard unencrypted protocol ports by default). But also transport encryption is not relevant in any conversation about messaging security. In the context of messaging for the last decade, the messages are either private or they are not, and TLS (or whatever transport level encryption you use) does not give you a private channel.
    - fulafel 3y ago
      Yep, and I agree about keeping high standards, but replacing the nonexistent security of SMS with something that can't be easily stingrayed or passively collected by pervasive surveillance would still be progress. This combined with the potential path forward to the Android style is still something, more than I would have expected from Apple.
      - olliej 3y ago
        What does "android style" mean here? Android has RCS which is just as insecure as SMS (encrypted chats aren't RCS, they're binary blobs using RCS as a transport mechanism - saying they're RCS is like saying iMessage is TLS because that's its transport mechanism)
        fulafel 3y ago
        This: https://arstechnica.com/gadgets/2021/06/google-enables-end-to-end-encryption-for-androids-default-sms-rcs-app/ https://arstechnica.com/gadgets/2021/06/google-enables-end-t...

olliej 3y ago

Well yes, RCS is not encrypted

fulafel 3y ago
It's transport encrypted but not e2e without extensions. Will be interesting to see if Apple implements Android's e2e crypto in RCS (would it need cooperation from Google?).
- olliej 3y ago
  transport encryption is literally the bare minimum for anything on the network these days (to the extent that iOS endeavors straight up blocks all the standard unencrypted protocol ports by default). But also transport encryption is not relevant in any conversation about messaging security. In the context of messaging for the last decade, the messages are either private or they are not, and TLS (or whatever transport level encryption you use) does not give you a private channel.
  - fulafel 3y ago
    Yep, and I agree about keeping high standards, but replacing the nonexistent security of SMS with something that can't be easily stingrayed or passively collected by pervasive surveillance would still be progress. This combined with the potential path forward to the Android style is still something, more than I would have expected from Apple.
    - olliej 3y ago
      What does "android style" mean here? Android has RCS which is just as insecure as SMS (encrypted chats aren't RCS, they're binary blobs using RCS as a transport mechanism - saying they're RCS is like saying iMessage is TLS because that's its transport mechanism)
      - fulafel 3y ago
        This: https://arstechnica.com/gadgets/2021/06/google-enables-end-to-end-encryption-for-androids-default-sms-rcs-app/ https://arstechnica.com/gadgets/2021/06/google-enables-end-t...