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What is Understanding the Permutation Cipher about?

The document describes the Permutation Cipher and Hill Cipher. The Permutation Cipher encrypts messages by permuting the positions of letters in blocks of fixed length, making frequency analysis ineffective. It is vulnerable to known plaintext attacks. The Hill Cipher operates on blocks of letters using matrix multiplication for encryption. It too can be broken with known plaintext but provides diffusion unlike the Permutation Cipher. Stream ciphers are also introduced, using key streams to encrypt individu

Author

Aman Handa

Language

EN