Don’t Use Session (Signal Fork) - Dhole Moments
soatok.blog
Last year, I outlined the specific requirements that an app needs to have in order for me to consider it a Signal competitor. Afterwards, I had several people ask me what I think of a Signal fork c…
  • vollkorntomate@infosec.pubEnglish
    34·
    3 days ago

    […] it uses the X25519 public key… as a symmetric key, for AES-GCM.
    […] anyone that knows the public key can decrypt it.

    Ouch.

    • Allah@lemmy.worldEnglish
      1·
      1 day ago

      You need a phone number for Signal which means that your mobile provider will have your location, your IMSI, your mobile device model, serial number if you are using a T-Mobile or any other Telco" supplied device.

      If not then via the IMSI / mobile number they can get your location and details from Google / Apple etc and that not even considering your IP-Address

      Any time that there is a unique real world identifier the owner can be located. The only way around this would be to use something like Briar that use cryptographic uniqueness and that communicates via Onion like multihop anonymizers (TOR etc) from the outset.

    • kbal@fedia.io
      21·
      3 days ago

      It’s centralized, it doesn’t officially allow 3rd-party clients, it requires a phone number, and the desktop app kinda sucks. I use it anyway, but it could be better.

      • rottingleaf@lemmy.worldEnglish
        31·
        3 days ago

        The “centralized” part is not a problem with their protocol and it’s well explained.

        The 3rd-party clients thing … I agree with, but one can find justifications for that too. They probably don’t want people to use it for filesharing with uuencode and base64. Or even for VPNs, like they did with Tox when it seemed to have a future.

        The phone number thing sucks, but there’s a need to defend against bot registrations somehow.

        The desktop app sucks absolutely and conclusively. If there were a library one can use to make a Pidgin plugin, it would be a godly gift.

      • EngineerGaming@feddit.nlEnglish
        1·
        3 days ago

        Not just sucks, but is limited. Like, you can’t even register there! To use Signal without a smartphone, you’d need workarounds that are unfriendly to an average person! All while a computer is far easier to make private than a phone.

    • dracs@programming.devEnglish
      5·
      3 days ago

      I’ve been using it for several months mostly due to it’s UnifiedPush notifications support and been really happy with it.

    • EngineerGaming@feddit.nlEnglish
      2·
      3 days ago

      I’ve used it because it actually allowed me to register, while the registration in the official app broke (my best guess is due to lack of Google services, because that’s the popup the app got stuck on). And if I knew about it earlier, I could’ve used it to register in an Android VM and then tie a desktop client - because unlike the original, it did not force you to use your camera, you could just use a link. Another important quality for me is the ability to use arbitrary Socks rather than Signal’s own - when every protocol has a chance to be blocked, flexibility is important, and having a standalone proxy may be more convenient than a whole-device VPN (that you’d have to keep on all the time to receive notifications).