eddsa

Fault attack agaisnt EdDSA demonstrated on an Arduino Nano board, allowing for partial key recovery and fake signatures.

A Lightweight Digital Signature Algorithm Library for Python

Encrypt/Decrypt with ChaCha20-Poly1305

Python-based cryptographic tool designed to help users encrypt and decrypt data using various algorithms.

Minerva is a group of side-channel vulnerabilities in implementations of ECDSA/EdDSA in programmable smart cards and cryptographic software libraries

一个以保障人权为核心理念的命令行通讯软件，专注于信息安全与隐私保护。目前已实现哈希验证身份和多算法加密通信等功能，为用户提供可靠的隐私保障。这个是中国大陆特供版，没有Tor功能集成。

Signed, verifiable action receipts for humans + agents (Ed25519 JWT + tamper-evident chain)

ISCC Signing & Verification

Audio digital signer for lossless audio using EdDSA and LSB steganography

FastAPI with EdDSA JWT auth, RBAC, Backed by MongoDB (indexed) and Redis (caching/rate limiting).

Implements the most common JWS algorithms to generate keys or sign and verify payloads without any other features that a JWT/JWS library might provide.

Encrypt, hash, and manage your data securely with CryptoKey, a tool for password generation, encoding, and key creation.