An easy-to-use and open-source tool for differential, linear, differential-linear, and integral analysis of S-boxes

Verilog Implementation of SM4 s-box

Verilog HDL implementation of the GOST 28147-89 — a Soviet and Russian government standard symmetric key block cipher

Verilog HDL implementation of the GOST R34.12-2015 — a fresh Russian government standard symmetric key block cipher.

This repo is a collection of proof-of-concepts, examples, essays and experiments in cryptography, cryptanalysis, steganography and covert channels that I originally wrote in 2015.

Algorithms studied during the Cryptography Course

2 rounds encryption-decryption scheme

The application provides various cryptographic metrics, such as Nonlinearity, Strict Avalanche Criterion (SAC), Bit Independence Criterion (BIC-NL & BIC-SAC), Linear Approximation Probability (LAP), and Differential Approximation Probability (DAP).

An 128-bit SPN Symmetric Block Cipher, not yet peer reviewed

Supports AES-128/192/256 with S-Box & Lookup-Table implementations.

Symetrical encryption/decryption program

48-bit Block Cipher in CBC mode.

Mathematical analysis of Boolean functions

DES SBox-based Patterns for 1D Signal Feature Extraction

S-box/p-box implementation

Encryption/decryption scripts for a Computer Security course, implementing LFSR, Affine Cipher, Caesar Cipher, Feistel Cipher, Playfair Cipher, and S-Box in Python.

A comprehensive web application for constructing, testing, and analyzing custom AES S-boxes based on the research paper "AES S-box modification uses affine matrices exploration for increased S-box strength" by Alamsyah et al. (2024).