Is there any reliable way to break a playfair cipher? – Digitalmunition




Home Forums Is there any reliable way to break a playfair cipher?

This topic contains 1 reply, has 2 voices, and was last updated by  sinofsociety 1 month ago.

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  • #308728

    anonymous
    Participant

    I have heard that the playfair cipher is a relatively easy cipher to break and that is why the military stopped using it. The thing is that I can’t find anything online about how the playfair cipher is so easily broken. Assuming that all you have is the ciphertext, how would one go about generating the plaintext and the key?

  • #308729

    sinofsociety

    As a bigram substitution cipher with only 600 possible bigrams, a computer can brute force a solution in seconds

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