#cryptography

A simple module for bitwise-xor on buffers

A circom library for zero-knowledge proofs of symmetric encryption key ownership without key revelation.

Implementation of AES-128 in pure C. No modes are given. Only one block of encryption and decryption is given here.

A cross-platform library for verifying Authenticode signatures

SHA-256 hash-chain audit log for YUCLAW research signals. Git-anchored — clone and verify independently.

Simple Encryption in PHP.

SharpHash is a C# hashing library which provides an easy to use interface for computing hashes and checksums of data. It also supports state based (incremental) hashing.

Lightweight cryptography library wrapper

SageMath/Python Toolkit for Cryptanalytic Research

The general purpose library for developing apps on .NET

This gem implements the Elliptic Curve Digital Signature Algorithm (ECDSA) almost entirely in pure Ruby.

Fast Elliptic Curve Cryptography in plain javascript

JS crypto library

Noise Protocol Framework - Python 3 implementation

A collection of Paillier cryptosystem zero knowledge proofs

Tool for generation of data from cryptoprimitives (block and stream ciphers, hash functions). Cryptoprimitives are round-reduced and the data can be configured for multiple testing scenarios.

A library for generating random numbers and strings

Post-quantum hybrid cryptography for data at rest (Rust core; Python/Node/Go bindings). AGPL-3.0. XChaCha20-Poly1305 · Argon2id · ML-KEM-1024 · ML-DSA-87 · VOPRF.