Tag
elliptic-curves
- Aug 30, 2024 Elliptic Curve Point Arithmetic and Validation The group law on a short Weierstrass curve, why scalar multiplication uses a ladder rather than double-and-add, and which malformed points a peer can send. cryptography
- Jul 15, 2024 ECDSA Nonce Reuse and the Private Key It Leaks A repeated signing nonce turns two signatures into a linear system that yields the private key, and biased nonces are nearly as bad because lattice reduction tolerates noise. cryptography