Program that encrypts plaintext and (attempts) to decrypt ciphertexts, encrypted via a mono-alphabetic substitution cipher. Replaces letters based on frequency / n-gram analysis. Tried to incorporate hill-climbing algorithm by measuring the fitness of resulting texts to find the best key.
python cryptography encryption cryptanalysis cipher algorithms n-grams decryption hill-climbing substitution frequency-analysis substitution-cipher decipher symmetric-key-cryptography symmetric-encryption-algorithm symmetric monoalphabetic cryptanalytical monoalphabetic-cipher
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Updated
Oct 3, 2020 - Python