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Cake day: June 20th, 2023

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  • In an ideal encryption, the resulting data should be indistinguishable from random when doing statistical analysis.

    So yes, such data will be really hard to compress, so typically compression is done before encryption.

    Now here’s a twist. The compression before encryption can reveal some details about the encrypted data. This is especially true if attacker has a way to generate encrypted message with part of information that is being encrypted (for example some kind of token etc).
    There were attacks on it. For example https://en.wikipedia.org/wiki/CRIME or https://en.wikipedia.org/wiki/BREACH (this was during that idiotic phase where vulnerabilities had those lame-ass names and they even created webpages)

    Ideally compression would be done after encryption, but because of issues described earlier, that wouldn’t give any benefit.









  • takeda@kbin.socialtoMemes@lemmy.mlDon't take it too seriosly
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    1 year ago

    There are plenty of evil things US has done, but in this particular case this is morally the right thing to do.

    In 1994 after Soviet Union fell United States, United Kingdom and Russia promised Ukraine that they will respect their borders and won’t use military or economical means to impose on Ukrainian borders.

    This was broken by Russia several times, it was largely ignored by the west though, until 2022 when Russia decided to go for the entire country.

    Before the invasion happened US did something it never did before. After few months alarming that this is what Russia was doing it ultimately specified the date of planned attack once again urging putin to reconsider. Biden gave putin an exit. He could call Biden senile and said that was just a training. Of course that wouldn’t fool people who understand geopolitics but it would work for general public inside and outside of Russia.

    Why West cares about Ukraine? Because a nearby war is not good for business and affects neighbors economically as well. Second thing is that Ukraine was a first major step. When many ignored Foundations of Geopolitics, this move solidified that putin truly was following that idea and won’t stop on Ukraine.



  • takeda@kbin.socialtoMemes@lemmy.mlDon't take it too seriosly
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    1 year ago

    I don’t think they care, Russia is no longer communist.

    To explain what I mean. I noticed that while term “tankies” is accepted as a term to refer to communists (particularly communists that would defend use of tanks on civilians), today’s tankies are also defending Russia which isn’t communist anymore (it’s more fascist than anything). Even those on lemmygrad. It feels like it never was about communism, but it always was about totalitarianism and Soviets.