5 ms·

whatsapp, facebook messenger, imessage all support multi-device and it's pretty convenient, in fairness to telegram they launched a bit before double ratched wa

by taminka 5mo ago

whatsapp, facebook messenger, imessage all support multi-device and it's pretty convenient, in fairness to telegram they launched a bit before double ratched was invented, but still, they've had over a decade to switch to it...

stavros 5mo ago
WhatsApp doesn't support multi-device. You can't have it installed on two phones at once.
- taminka 5mo ago
  you can (https://faq.whatsapp.com/1046791737425017/?cms_platform=android https://faq.whatsapp.com/1046791737425017/?cms_platform=andr...) they even have it on fb messenger and instagram (though they recently removed e2ee completely from instagram lol)
  - stavros 5mo ago
    That's still one device. If you turn the primary phone off, the secondary device stops working. WhatsApp just proxies everything through the primary device, it's like WhatsApp Web.
    - taminka 5mo ago
      oh, i see, is it the same for facebook messenger and instagram, imessage, etc?
      - stavros 5mo ago
        I don't know, I don't use those. It is for Signal, I don't think so for Instagram, since I don't think that encrypts end to end.
        lxgr 5mo ago
        It's not true for Signal either. Why don't you try it for yourself instead of spreading outdated (at best) information? Signal supports native multi-device capabilities without relaying everything through the "primary" device.
      - TeMPOraL 5mo ago
        Messenger seems to be properly multi-device, but you pay for this by some PIN code bullshit (maybe they removed that, I haven't seen a popup about this for over a year now?) and having to sync chat history in the background, through a process that is, of course, broken and unreliable. I'm actually still jaded about this. Messenger worked fine before they broke it by introducing E2EE; it took years for them to fix the problems this caused (at least the ones that were immediately user-perceptible).
        taminka 5mo ago
        yeah messenger still has the pin code thingy, i'm curious why they do it at all that way, can't you just have your keys on fb servers encrypted with another set of keys derived from your password, which is much stronger than a 4-6 digit key?
        alex1138 5mo ago
        It's still broken if you're like me and you clear cookies "Let's take people's years-long history between each other and just utterly break it. Why? 'privacy'" but they've never cared about it, they're opportunistic fucks. It's Zuckerberg's company to do with it "as he wishes" https://news.ycombinator.com/item?id=16770818 https://news.ycombinator.com/item?id=16770818
    - canpulseword 5mo ago
      This is not true, even if the primary phone is offline you can send messages via secondary device, even whatsapp web It’s not proxied via primary, otherwise it wouldn’t work if primary were offline
      - stavros 5mo ago
        > It’s not proxied via primary, otherwise it wouldn’t work if primary were offline That is correct, it doesn't work.
        lxgr 5mo ago
        Please stop spreading misinformation that can trivially be disproved with five minutes of effort.
        stavros 5mo ago
        I just tried it. Did you?
        lxgr 5mo ago
        Yes, and it works, as it has for the past few years.
        stavros 5mo ago
        So I don't need my primary device any more? I can just shut that phone down forever?
        lxgr 5mo ago
        No, I think you need it to be online once every 30 days or so. That's a much weaker requirement than what you were disputing, though.
        akdev1l 5mo ago
    - lxgr 5mo ago
      They used to, but that hasn't been true for a few years now. Now it uses the Signal protocol's native multi-device capabilities, specifically in the "key per device" variant (unlike signal itself, which uses "key per account" if I'm not mistaken).
    - wisenull 5mo ago
      It used to be like that but not anymore. As siblings suggested you can now use it on up to 4 (I believe) additional devices.

by taminka 5mo ago

stavros 5mo ago

WhatsApp doesn't support multi-device. You can't have it installed on two phones at once.

taminka 5mo ago
you can (https://faq.whatsapp.com/1046791737425017/?cms_platform=android https://faq.whatsapp.com/1046791737425017/?cms_platform=andr...) they even have it on fb messenger and instagram (though they recently removed e2ee completely from instagram lol)
- stavros 5mo ago
  That's still one device. If you turn the primary phone off, the secondary device stops working. WhatsApp just proxies everything through the primary device, it's like WhatsApp Web.
  - taminka 5mo ago
    oh, i see, is it the same for facebook messenger and instagram, imessage, etc?
    - stavros 5mo ago
      I don't know, I don't use those. It is for Signal, I don't think so for Instagram, since I don't think that encrypts end to end.
      - lxgr 5mo ago
        It's not true for Signal either. Why don't you try it for yourself instead of spreading outdated (at best) information? Signal supports native multi-device capabilities without relaying everything through the "primary" device.
    - TeMPOraL 5mo ago
      Messenger seems to be properly multi-device, but you pay for this by some PIN code bullshit (maybe they removed that, I haven't seen a popup about this for over a year now?) and having to sync chat history in the background, through a process that is, of course, broken and unreliable. I'm actually still jaded about this. Messenger worked fine before they broke it by introducing E2EE; it took years for them to fix the problems this caused (at least the ones that were immediately user-perceptible).
      - taminka 5mo ago
        yeah messenger still has the pin code thingy, i'm curious why they do it at all that way, can't you just have your keys on fb servers encrypted with another set of keys derived from your password, which is much stronger than a 4-6 digit key?
      - alex1138 5mo ago
        It's still broken if you're like me and you clear cookies "Let's take people's years-long history between each other and just utterly break it. Why? 'privacy'" but they've never cared about it, they're opportunistic fucks. It's Zuckerberg's company to do with it "as he wishes" https://news.ycombinator.com/item?id=16770818 https://news.ycombinator.com/item?id=16770818
  - canpulseword 5mo ago
    This is not true, even if the primary phone is offline you can send messages via secondary device, even whatsapp web It’s not proxied via primary, otherwise it wouldn’t work if primary were offline
    - stavros 5mo ago
      > It’s not proxied via primary, otherwise it wouldn’t work if primary were offline That is correct, it doesn't work.
      - lxgr 5mo ago
        Please stop spreading misinformation that can trivially be disproved with five minutes of effort.
        stavros 5mo ago
        I just tried it. Did you?
        lxgr 5mo ago
        Yes, and it works, as it has for the past few years.
        stavros 5mo ago
        So I don't need my primary device any more? I can just shut that phone down forever?
        lxgr 5mo ago
        No, I think you need it to be online once every 30 days or so. That's a much weaker requirement than what you were disputing, though.
        akdev1l 5mo ago
  - lxgr 5mo ago
    They used to, but that hasn't been true for a few years now. Now it uses the Signal protocol's native multi-device capabilities, specifically in the "key per device" variant (unlike signal itself, which uses "key per account" if I'm not mistaken).
  - wisenull 5mo ago
    It used to be like that but not anymore. As siblings suggested you can now use it on up to 4 (I believe) additional devices.