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GPT-6 Astra Solves a WWI German Radio Cipher

400 points · 180 comments · nsoonhui

  1. adverbly · · focus · HN ↗
    I'm no crypto expert at all but isn't TRUPPENVERSCHIEBUNG an actual word?

    Google says it translates to "troops shift"

    If so, I don't understand how this was difficult at all... Can't you just do a dictionary attack and then check if the resulting phrase forms a sentence?

    I don't understand how this couldn't be done by someone in their house with access to a computer and a German dictionary.

    Maybe I'm messing something? Was the rearranging of the letters random in some non-deterministic way that wasn't known up front?

    1. qtrz-qpo · · focus · HN ↗
      Yes, it is an actual word. More than that, it is used as an example in “The History and Principles of German Military Ciphers, 1914–1918”.

      But let us use this and tell politicians that "Astra broke SOTA encryption", so AI must be banned.

      1. addandsubtract · · focus · HN ↗
        Oh no, Astra is necessary to defend us from the evil "open AI" models out there. Only ban those.
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