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What is Cryptography: Ciphers and Attacks Explained about?

Stream ciphers encrypt plaintext one byte at a time using XOR, while block ciphers encrypt fixed blocks. Cryptanalysis aims to recover the key rather than just plaintext. There are two general attack approaches: cryptanalysis exploits algorithm characteristics, while brute force attacks try every possible key. Playfair and polyalphabetic ciphers are discussed as examples of symmetric encryption schemes that can potentially be broken through cryptanalysis by exploiting patterns in the ciphertext.

Author

mrick

Language

EN