Decrypting a caeser cipher without a key using basic Cryptanalysis.

"Solving an alchemical cipher in a shared notebook of John and Arthur Dee"

Encrypted file scanner

Linear Cryptanalysis

Mines Nancy (2014) - Projet Cryptanalyse RC4 - Développé par Clément Jansen et Zakarya Ali

RC4 was one of the most used stream ciphers back in the 90's but due to sum predictability in the output it is becoming obsolete....

This project provides C-based implementations of cryptanalytic attacks on the Advanced Encryption Standard (AES), focusing on two methods: the Yoyo attack and the Boomerang attack. These techniques exploit weaknesses in reduced-round AES to recover secret keys and distinguish AES from random permutations.

MRHS solver - research tool for experimental algebraic cryptanalysis

C implementation of the Vigènere cipher and the attack on it using Kasiski examination and frequence analysis

C-based command-line program designed to break Enigma ciphertext in a ciphertext-only scenario

Implementation and round-reduced preimage attacks on BLAKE2s hash function.

🔓 Cryptanalytic attack on the KLEIN embedded block cipher

Long message attack on 96-bits of sha256 using distributed computing

Implementation and round-reduced preimage attacks on BLAKE-256 hash function.

Cryptanalysis of Elisabeth-4 (ASIACRYPT 2023) -- Practical attack code for a toy variant of the Elisabeth-4 cipher.

An implementation of Heilman et al.'s differential attack on IOTA's Curl hashing function.

Differential Cryptanalysis of DES

Cryptology exercices from Matasano Challenges: https://cryptopals.com

Generate arbitrary MD4 collisions

Cryptanalysis tools for RSA