An implementation of a substitution-permutation-network and a randomized counter CTR

My ANGELITA 128-bit SPN Cipher, now in Python

Elm implementation of encryption using an SPN with a front-end

Implementation of an SP Network using a new modified Playfair Cipher for substitution and the chaotic Logistic-Tent Map for permutation, in Python. This new algorithm has been named Playfair Logistic-Tent Network (PLT-Net).

An 128-bit SPN Symmetric Block Cipher, not yet peer reviewed

Proof-of-concept Product Cipher using cryptography classics (CS3052 Computer Security - Assignment)

yet another CLI password manager

The encryption algorithm uses a 10-round Feistel structure and is based on the concept of a substitution-permutation network (SPN).

Complete implementations of encryption and decryption algorithms including Advanced Encryption Standard (AES), Data Encryption Standard (DES), Row Transposition Cipher and Vigenere Cipher.

🔐 An AES Like Fast Symmetric Cipher Implemented In C ⚡

Tools for studying Impossible Differential Cryptanalysis on Substitution-Permutation Networks.

Automated cryptanalysis of substitution permutation network cipher