Cryptanalysis Python Packages

xortool

A tool to analyze multi-byte xor cipher

cryptoexp

Dependency-free Python toolkit for crypto CTF and real-world crypto assessment: LLL/Coppersmith (univariate, bivariate, linearization), RSA/DSA/ECDSA attacks, CRC/LFSR, PRNG recovery, ADFGX/ADFGVX, three-state verification. 零依赖的 Python 密码学 CTF 与实战评估工具箱：格与 Coppersmith、RSA/签名攻击、CRC/LFSR、PRNG 恢复、古典密码、三态验证。

algebraic-immunity

Python package implemeted in Rust to compute the algebraic immunity and restricted algebraic immunity of a Boolean function

cryptanalysis

Automated cryptanalysis of substitution permutation network cipher

autoguess

An easy-to-use, general and open-source tool to solve the guess-and-determine problem

samson-crypto

Cryptanalysis and attack library

live-casi

CASI structural-analysis toolkit with Nano-CASI IEEE NANO 2026 artifact

mtp

Many-Time Pad Interactive

cry

SageMath/Python Toolkit for Cryptanalytic Research

featherduster

An automated, modular cryptanalysis tool; i.e., a Weapon of Math Destruction

disypher

Classical cipher analysis that refuses to guess. Fifteen ciphers ranked by confidence — Vigenère, Beaufort and columnar transposition broken without the key. Zero dependencies, CLI and Python API, runs in the browser through WebAssembly.

batch-gcd

DJB's batch GCD algorithm for fast factoring sequences of integers

lantern

Cryptanalysis library for breaking classical ciphers

o1op

Deterministic code synthesis operator — zero LLM in the loop. 8-color algebraic type system, 7-pass causal inference, 7-layer verification, 9-phase autonomous engagement. Substrate validated across 9 IEEE 2026 papers + IBM z/OS production assessment.

divprop

Division property cryptanalysis tools

torch-crypto

Command-line Cryptanalysis

subsets

Tools for cryptanalysis (subsets & transforms)

exsc

Implimentation of Extended Substitution Cipher

coinwatch

Coinmarketcap console client to keep track of your crypto currency trades - are you winning or losing?