CHANGELOG (1427B)
1 # Changelog 2 3 - 0.4.0 (2025-06-21) 4 * Scalar multiplication, signing, verifying, and ECHD functions are now 5 all total, returning 'Nothing' when supplied with invalid inputs. 6 * Adds a group element check to 'mul_wnaf'. 7 8 - 0.3.0 (2025-03-14) 9 * Adds 'ecdh' for computing ECDH secrets, any given secret being the 10 SHA256 hash of the x-coordinate of the appropriate secp256k1 point. 11 12 - 0.2.2 (2025-02-16) 13 * Exports the secp256k1 "point at infinity" as _CURVE_ZERO. 14 15 - 0.2.1 (2024-12-18) 16 * Adds 'serialize_point' for compressed-format serialization of 17 secp256k1 points. 18 19 - 0.2.0 (2024-11-08) 20 * Adds wNAF ("w-ary non-adjacent form") scalar multiplication, as 21 well as fast 'sign' and 'verify' variants for Schnorr and ECDSA 22 (disambiguated by a trailing apostrophe) that make use of it. 23 24 Each wNAF-powered function requires a 'Context' consisting of 25 precomputed secp256k1 generator multiples; one can be gotten via 26 'precompute'. 27 28 Note that the non-wNAF-powered sign and verify functions have 29 incurred a slight performance decrease (on the order of tens to 30 hundreds of microseconds) as a result. 31 32 * Adds 'parse_sig' for parsing compact signatures. 33 34 * Adds a dependency on the 'primitive' library (already transitively required 35 via 'ppad-hmac-drbg'). 36 37 - 0.1.0 (2024-10-19) 38 * Initial release, supporting public key derivation and Schnorr & 39 ECDSA signatures on secp256k1. 40