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What is Affine Cipher Encryption Function Analysis about?

A chosen plaintext attack was performed on an affine cipher using the plaintext "hahaha" and ciphertext "NONONO". By setting up a system of congruences relating the plaintext and ciphertext letters, the encryption function y = 11x + 14 (mod 26) was determined. The inverse of 7 modulo 26 is 15, which allowed the cipher

Author

Jayati Thakkar

Language

EN