From c05e23fa60212b435173a4f4a84631432ac39ea9 Mon Sep 17 00:00:00 2001 From: ucwong Date: Tue, 25 Feb 2025 17:28:18 +0800 Subject: [PATCH] add comment to FromECDSAPub --- crypto/crypto.go | 3 +++ 1 file changed, 3 insertions(+) diff --git a/crypto/crypto.go b/crypto/crypto.go index 4f61c9aba2..4b1e7beb2c 100644 --- a/crypto/crypto.go +++ b/crypto/crypto.go @@ -185,6 +185,9 @@ func UnmarshalPubkey(pub []byte) (*ecdsa.PublicKey, error) { return &ecdsa.PublicKey{Curve: S256(), X: x, Y: y}, nil } +// FromECDSAPub converts a secp256k1 public key to bytes. +// Note: it does not use the curve from pub, instead it always +// encodes using secp256k1. func FromECDSAPub(pub *ecdsa.PublicKey) []byte { if pub == nil || pub.X == nil || pub.Y == nil { return nil