The Affine Cipher is another example of a Monoalphabetic Substituiton cipher. The number of possible keys is 12*26-1 = 311. They are one of heuristic search techniques which use natural selection. Contribute to berkkoylu/affine-cipher development by creating an account on GitHub. Implementation of Affine Cipher The Affine cipher is a type of monoalphabetic substitution cipher, wherein each letter in an alphabet is mapped to its numeric equivalent, encrypted using a simple mathematical function, and converted back to a letter. Genetic algorithms (GAs) have been used as a powerful tool for cryptanalyzing affine ciphers in this paper for the first time. Cryptanalysis of the Affine Cipher. The whole process relies on working modulo m (the length of the alphabet used).

For a recap of how the affine cipher works, see here.
This is very easy for a computer to simply search all possible keys and pick the best. cryptanalysis affine cipher. It is slightly different to the other examples encountered here, since the encryption process is substantially mathematical. The affine cipher is very slightly more complicated than the Caesar cipher, but does not offer much more security. They select the optimal solution by using