digital-signatures

2 entries

Satoshi clarifies that Bitcoin uses Hashcash-style SHA-256 proof-of-work (not signatures), explains the proportional mining chances, and addresses identity and double-spending prevention.

January 19, 2020 BIP (Bitcoin Improvement Proposal)

BIP 340 — Schnorr Signatures for secp256k1

Pieter Wuille ↔ Jonas Nick, Tim Ruffing

Introduced Schnorr digital signatures to Bitcoin, replacing ECDSA for Taproot transactions. Schnorr signatures are provably secure, non-malleable, and enable efficient multi-signature aggregation — making complex scripts indistinguishable from simple payments on-chain.

digital-signatures

Bitcoin P2P e-cash paper

BIP 340 — Schnorr Signatures for secp256k1