A block cipher is a keyed bijective function (also pseudo-random permutation). If your question is not directly related to programming, check if the question fits better on https://crypto.stackexchange.com/ or https://security.stackexchange.com/
Questions tagged [block-cipher]
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encryption algorithm block cipher and stream cipher
what is differance between stream cipher and block cipher?As in block cipher data are in chucks while in stream cipher bit by bit encrypting so how many data are as input in stream cipher?
