[]byte { fipsSelfTest() fips140.RecordApproved() return signWithDom(signature, priv, message, domPrefixPure, "") } func SignPH(priv *PrivateKey, message []byte, context string) ([]byte, error) { // Outline the function body so that the returned signature can be // stack-allocated. signature := make([]byte, signatureSize) return signPH(signature, priv, message, context) } func signPH(signature []byte, priv *PrivateKey, message []byte, context string) ([]byte, error) { fipsSelfTest() fips140.RecordApproved()...