indutny/elliptic

Elliptic is a fast elliptic curve cryptography library written in pure JavaScript, providing implementations of ECDSA, EdDSA, and ECDH for various curve types including secp256k1, curve25519, and ed25519. It's designed for developers needing cryptographic operations in JavaScript environments who want high-performance alternatives to RSA cryptography, particularly useful for blockchain applications, secure messaging, and any system requiring digital signatures or key exchange.