Quantum Resistance and the Signal Protocol - eviltoast

We believe that the key encapsulation mechanism we have selected, CRYSTALS-Kyber, is built on solid foundations, but to be safe we do not want to simply replace our existing elliptic curve cryptography foundations with a post-quantum public key cryptosystem. Instead, we are augmenting our existing cryptosystems such that an attacker must break both systems in order to compute the keys protecting people’s communications.

Our new protocol is already supported in the latest versions of Signal’s client applications and is in use for chats initiated after both sides of the chat are using the latest Signal software. In the coming months (after sufficient time has passed for everyone using Signal to update), we will disable X3DH for new chats and require PQXDH for all new chats. In parallel, we will roll out software updates to upgrade existing chats to this new protocol.

  • incompetentboob@lemmy.world
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    1 year ago

    Do we still like signal? I remember reading something about why you should stop using signal but this seems contrary to that

    • Yesbutnotreally@lemmy.world
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      1 year ago

      People dislike Signal because of the phone number. The problem is, in my opinion, that all the “more secure” messengers lack features to ever be somewhat mainstream. I think most privacy experts and enthusiasts still consider Signal to be the gold standard of E2EE messengers.

      Edit: Forgot to mention centralised servers, but if you dig a little bit deeper than then top layer of that, it’s not an issue.

      • sudneo@lemmy.world
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        1 year ago

        Many people also fail to make a proper distinction between private and anonymous, which is why some people get mad at the phone number thing.

      • Obinice@lemmy.world
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        1 year ago

        Ah, yes, I’m not giving an instant messenger application my phone number, it doesn’t need it, especially if I’m not even using it on a phone.

        That’s private information that I only give out to close friends and family members.

      • winterayars@sh.itjust.works
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        1 year ago

        The phone number thing is a major problem but Signal just has the momentum imo. Ultimately, they’re gonna need to fix it or we’re all going to have to stop using it.

    • Virkkunen@kbin.social
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      1 year ago

      For every thing on this world, there will be people disliking this thing and being very vocal about it.