func (k *Secp256k1PublicKey) Verify(data []byte, sigStr []byte) (bool, error) {
	sig, err := btcec.ParseDERSignature(sigStr, btcec.S256())
	if err != nil {
		return false, err
	}

	hash := sha256.Sum256(data)
	return sig.Verify(hash[:], (*btcec.PublicKey)(k)), nil
}
func (k *Secp256k1PublicKey) Verify(data []byte, sigStr []byte) (bool, error) {
	sig, err := btcec.ParseDERSignature(sigStr, btcec.S256())
	if err != nil {
		return false, err
	}

	hash := sha256.Sum256(data)
	return sig.Verify(hash[:], (*btcec.PublicKey)(k)), nil
}
func ( k * Secp256k1PublicKey ) Verify ( data [ ] byte , sigStr [ ] byte ) ( bool , error ) { sig , err := btcec . ParseDERSignature ( sigStr , btcec . S256 ( ) ) if err != nil { return false , err } hash := sha256 . Sum256 ( data ) return sig . Verify ( hash [ : ] , ( * btcec . PublicKey ) ( k ) ) , nil }
// Verify compares a signature against the input data
Verify compares a signature against the input data