Break rotational letter substitution (ROT) encoded text, right from your terminal.

Python substitute and transposition ciphers including Vigenère Cipher, Rail Fence Cipher, Caesar Cipher

CLI tool to Solve Substitution Ciphers using a wordlist

poor man's homophonic substitution cipher

This is an implementation of all famous cryptography algorithms in python. There are several algorithm of cipher in this like Caesar, Transposition, Substitution, Vigenere, AES and RSA

Implementation of various symmetric key encryption systems like AES, DES, triple DES (3 DES), Ceasar cipher, Substitution cipher, Hill cipher

Cryptography algorithms on C#

Cryptography Algorithm Implementations

A script for decrypting text encrypted with monoalphabetic/simple substitution ciphers using combined pattern deduction.

This repository contains my B.Tech project work on automatic solution to short substitution cipher using dictionary attack

Implementation of Ciphers

This repository implements a variety of cryptographic methods and methods of breaking them

This repository contains a Python implementation of HMM and MCMC methods for text decryption. These methods are applied for decrypting messages which have been encoded using a various ciphers.

A repository which contains the implementation of Ceasers Cipher which is a very basic and most common data encryption Technique in C++.

A side project developed for Experiment 2 of Security Lab, Design & implementation of a product cipher using substitution and transposition Ciphers. The link to the website is given below. Have fun!

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.

Java code to crack words encrypted using the same key by a Vigenère cipher

Solving a combination of substitution cipher and transposition cipher (on the same cipher text)

Ideograph Cipher - A way of encrypting text using Kanji and Kana. (Proof of Concept)

Web interface for performing monoalphabetic substitution