func crypto.SignMessage

2 uses

	crypto (current package)
		crypto.go#L245: func SignMessage(signer Signer, rand io.Reader, msg []byte, opts SignerOpts) (signature []byte, err error) {

	crypto/x509
		x509.go#L1582: 	signature, err := crypto.SignMessage(key, rand, tbs, signerOpts)