Cipher_crack

What's the Cipher_crack

It's a program that can encrypt, decrypt and crack texts using cryptanalysis.

Ciphers used:

1. Caesar cipher

2. Affine cipher

3. Simple substitution cipher

4. Polybius cipher

5. Vigenere cipher

Сryptanalysis methods used:

1. Brute force

2. Frequency analysis of letters

3. Frequency analysis of n-grams

4. 'Hill-climbing' algorithm

5. Accounting for the index of coincidence

Build requirements

Before installing the program, check that cmake and libboost-all-dev packets are installed.

Install

$ git clone https://github.com/CppHackers/Cipher_crack
$ cd Cipher_crack
$ ./install.sh

How to use it

$ crack [general options] [cipher options] [encrypt/decrypt/crack options]

More

$ man crack

or

$ crack --help

or

$ crack -h