예제 #1
0
// newManagedAddress returns a new managed address based on the passed account,
// private key, and whether or not the public key is compressed.  The managed
// address will have access to the private and public keys.
func newManagedAddress(m *Manager, account uint32, privKey *btcec.PrivateKey, compressed bool) (*managedAddress, error) {
	// Encrypt the private key.
	//
	// NOTE: The privKeyBytes here are set into the managed address which
	// are cleared when locked, so they aren't cleared here.
	privKeyBytes := privKey.Serialize()
	privKeyEncrypted, err := m.cryptoKeyPriv.Encrypt(privKeyBytes)
	if err != nil {
		str := "failed to encrypt private key"
		return nil, managerError(ErrCrypto, str, err)
	}

	// Leverage the code to create a managed address without a private key
	// and then add the private key to it.
	ecPubKey := (*btcec.PublicKey)(&privKey.PublicKey)
	managedAddr, err := newManagedAddressWithoutPrivKey(m, account,
		ecPubKey, compressed)
	if err != nil {
		return nil, err
	}
	managedAddr.privKeyEncrypted = privKeyEncrypted
	managedAddr.privKeyCT = privKeyBytes

	return managedAddr, nil
}
예제 #2
0
파일: sign.go 프로젝트: conseweb/stcd
// RawTxInSignature returns the serialized ECDSA signature for the input idx of
// the given transaction, with hashType appended to it.
func RawTxInSignature(tx *wire.MsgTx, idx int, subScript []byte,
	hashType SigHashType, key *btcec.PrivateKey) ([]byte, error) {

	parsedScript, err := parseScript(subScript)
	if err != nil {
		return nil, fmt.Errorf("cannot parse output script: %v", err)
	}
	hash := calcSignatureHash(parsedScript, hashType, tx, idx)
	signature, err := key.Sign(hash)
	if err != nil {
		return nil, fmt.Errorf("cannot sign tx input: %s", err)
	}

	return append(signature.Serialize(), byte(hashType)), nil
}