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tlsfuzzer
ecdsa

pure-python ECDSA signature/verification and ECDH key agreement

52M 975 335
wbond
oscrypto

Compiler-free Python crypto library backed by the OS, supporting CPython and PyPy

20.3M 336 80
ofek
coincurve

Safest and fastest Python library for secp256k1 elliptic curve operations

2.4M 179 60
tlsfuzzer
tlslite-ng

TLS implementation in pure python, focused on interoperability testing

348K 266 93
AntonKueltz
fastecdsa

Python library for fast elliptic curve crypto

243K 288 80
serengil
lightdsa

A Lightweight Digital Signature Algorithm Library for Python

153K 5 0
imachug
sslcrypto

Simple ECIES, ECDSA and AES library for Python, supporting OpenSSL and pure-Python environments

133K 26 6
ofek
electrumsv-secp256k1

Safest and fastest Python library for secp256k1 elliptic curve operations

4K 179 60
btclib-org
btclib

btclib: a python3 library for 'bitcoin cryptography'

3K 114 43
wolfssl
wolfcrypt

Python module that encapsulates wolfSSL's crypto engine API.

2K 41 31
akarve
bipsea

Composable Python CLI for Bitcoin mnemonics and BIP-85 secrets

2K 9 7
isakruas
ecutils

Python Library for Elliptic Curve Cryptography: key exchanges (Diffie-Hellman, Massey-Omura), ECDSA signatures, and Koblitz encoding. Suitable for crypto education and secure systems.

2K 8 2
Garl-Protocol
garl-protocol

GARL Protocol Python SDK — cryptographic verification for AI agent actions. Signed Action Receipts (v0.1), multi-dimensional Trust Vector, capability tokens (JWT-shaped + ECDSA-secp256k1 + Biscuit-style attenuation), UETA §10(b) undo. + garl-verify CLI. Starting with code.

1K 0 0
johndoe31415
toyecc

Elliptic Curve Cryptography playground/toolkit written in pure Python

489 70 17
kumarprobeops
signforge-verify

Verify SignForge-signed PDFs offline — W3C VC, ECDSA P-256, Merkle proofs, JAdES JWS. Python 3.9+.

408 0 0
ArcticTechnology
libsecp256k1-0

Compiled libsecp256k1 for using ECDSA signatures and secret/public key cryptography in your python projects.

384 5 0
bismuthfoundation
polysign

Polysign PIP module for Bismuth. Handles the various cryptographic primitives Bismuth Crypto currency supports.

372 3 0
Mari6814
jws-algorithms

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.

316 0 0
ArcticTechnology
simplewallet

Simple Wallet is a minimalist Bitcoin wallet that lets you securely create Bitcoin addresses, sign messages, and validate addresses.

284 1 1
wbond
oscrypto-tests

Test suite for oscrypto, separated due to file size

217 336 80
drtoxic69
eccrypto

Pure Python library for Elliptic Curve Cryptography (ECC) — built from scratch with clarity and educational readability in mind

201 7 1
razashariff
mcps-secure

MCPS -- MCP Secure. Cryptographic identity, message signing, and trust verification for the Model Context Protocol.

175 2 0
daedalus
ecdsa-break

Recover ECDSA private keys from biased-nonce signatures via LLL/BKZ lattice reduction

168 92 31
wbond
oscrypto-snowflake-patch

Compiler-free Python crypto library backed by the OS, supporting CPython and PyPy

163 336 80
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