• 11 Posts
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Joined 3 years ago
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Cake day: November 1st, 2021

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  • Diffie-Hellman is only a key exchange protocol and does not provide forward secrecy. Imagine that my and your client figure out our shared secred (key) with DH, then encrypt our chat with that. If someone breaks only a bit of our traffic, then they can read newer messages as well.

    https://en.wikipedia.org/wiki/Forward_secrecy

    Forward secrecy means that at any point messages are encrypted with keys that aren’t reused forever, which means if an attacker can intercept traffic and read a bit, or crack the encryption, that they don’t automatically get access to our future conversation as well.


  • sexy_peach@feddit.detoPrivacy@lemmy.ml*Permanently Deleted*
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    1 year ago

    Since Ig we all know this message which appears when the “keys” ig, changed

    I don’t know if I fully understand you here.

    To my understanding whatsapp does it like this too. The key changing must be the high level key, since the message means that it’s an unknown key (thus not yet trusted). From new install or new device.







  • sexy_peach@feddit.detoPrivacy@lemmy.mlThis is Depressing
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    1 year ago

    You will forever have these feelings, if you have a better world than the status quo in mind. Be careful to not be overwhelmed by them, if you suffer too much long term you could give up or become a cynic. Nothing is perfect, we strive to make better systems (and smartphones).