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      • 01 Jun

        The Spyware

      • 31 May

        CRYSTALS-Dilithium: LWE-based digital signature

    01 Jun

    The Spyware

    31 May

    CRYSTALS-Dilithium: LWE-based digital signature

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    Leon Battista Alberti’s cipher disk
    18 Jul

    Leon Battista Alberti’s cipher disk, described in “De cifris” around 1467, is the first polyalphabetic encryption system. The device consists of two concentric discs, rotating relative to each other, containing...

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    The Caesar cipher
    07 Feb

    In cryptography, the Caesar cipher is one of the oldest cryptographic algorithms of which there is a historical trace. It is a mono-alphabetic substitution cipher, in which each letter of...

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    History of cryptography: the scitala
    29 Nov

    The scitala or scital (in ancient Greek: σκυτάλη, skytàlē, “stick”) is traditionally considered an encrypted and secret message that was sent by the ephors, the five supreme magistrates of Sparta,...

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