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libsecp256k1 20191213-1.d644dda C library for EC operations on curve secp256k1

Optimized C library for EC operations on curve secp256k1.

This library is a work in progress and is being used to research best practices. Use at your own risk.


  • secp256k1 ECDSA signing/verification and key generation.

  • Adding/multiplying private/public keys.

  • Serialization/parsing of private keys, public keys, signatures.

  • Constant time, constant memory access signing and pubkey generation.

  • Derandomized DSA (via RFC6979 or with a caller provided function.)

  • Very efficient implementation.