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Example of linear cryptanalysis

Example of linear cryptanalysis. We shall apply linear cryptanalysis against a block cipher based only on applying a fixed permutation to each block and XOR of each block with a fixed binary array. Suppose the following known plaintext blocks 0000 1000 1100 0110 1111

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Example of linear cryptanalysis

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  1. Example of linear cryptanalysis • We shall apply linear cryptanalysis against a block cipher based only on applying a fixed permutation to each block and XOR of each block with a fixed binary array. • Suppose the following known plaintext blocks0000 1000 1100 0110 1111 • correspond to the following ciphertext blocks1001 1000 0000 0101 0110. • Break the cipher by determining exactly what permutation was applied and what binary array was used to XOR with each block.

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