Survey: Block cipher Methods
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چکیده
In this paper we give a short overview of Symmetric key block cipher for different algorithms presented in this field according to classified it in cryptography where we classified into categories. first, Mode of operation which is ways helped to apply block cipher to encrypt larger plaintext. second, iterated product cipher which also classified it into Feistel Network, substitution-permutation networks and Unbalanced Feistel Network.
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