https://github.com/systemslibrarian/crypto-lab-ecdsa-forge

Browser-based ECDSA demo on secp256k1 and P-256 — sign/verify, live nonce reuse attack with full private key recovery (the PS3 hack, real math), RFC 6979 deterministic nonces verified against test vectors. The signature algorithm behind TLS, Bitcoin, Ethereum, SSH, and WebAuthn. No backends. No simulated math.

bitcoin crypto-lab cryptography digital-signatures ecdsa elliptic-curve ethereum nonce-reuse p256 ps3-hack rfc-6979 secp256k1 side-channel

Last synced: 11 Jul 2026