cryptanalysis

A cryptanalysis application that's based on Caesar cipher algorithm.

The app does the following:

1- Encryption:

• Accept a plaintext and convert it to enciphered text according to a given (key) following Caesar cipher.

2- Decryption:

• Accept an enciphered text, following Caesar cipher and automatically analyze the letters in the enciphered text to determine their frequencies.
• Compare the frequencies with the standard English but shifted with 1, 2, 3, ... or more as expected by Caesar cipher.
• Determine the highest correlation coefficient and then the key length and automatically deciphers the message accordingly.