func crypto/x509.marshalECDHPrivateKey

2 uses

	crypto/x509 (current package)
		pkcs8.go#L174: 			if privKey.PrivateKey, err = marshalECDHPrivateKey(k); err != nil {
		sec1.go#L72: func marshalECDHPrivateKey(key *ecdh.PrivateKey) ([]byte, error) {