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What Is An Iterated Block Cipher? |
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Answer» An iterated BLOCK cipher is one that encrypts a plaintext block by a process that has several ROUNDS. In each round, the same transformation or round FUNCTION is applied to the data using a subkey. The set of subkeys are USUALLY derived from the user-provided secret key by a key schedule. An iterated block cipher is one that encrypts a plaintext block by a process that has several rounds. In each round, the same transformation or round function is applied to the data using a subkey. The set of subkeys are usually derived from the user-provided secret key by a key schedule. |
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