cryptography - How decrypt keccak algorithm -


i preparing presentation keccak (http://keccak.noekeon.org/).

in presentation, encrypt plain-text – brings following questions:

  1. what exact role of padding function (how obtain cube of 1600 bits 64 bit)?
  2. after encrypting text, how can decrypt again?

you cannot "decrypt" output of keccak, since isn't encryption algorithm, 1 way hash function. instead, use verifying hash value indeed hash output of particular text (which must know already), calculating hash of text, , comparing output first hash value.


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