| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.conscrypt; |
| |
| import java.io.IOException; |
| import java.io.NotSerializableException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.security.InvalidKeyException; |
| import java.util.Arrays; |
| |
| import javax.crypto.SecretKey; |
| |
| public class OpenSSLSecretKey implements SecretKey, OpenSSLKeyHolder { |
| private static final long serialVersionUID = 1831053062911514589L; |
| |
| private final String algorithm; |
| private final int type; |
| private final byte[] encoded; |
| |
| private transient OpenSSLKey key; |
| |
| public OpenSSLSecretKey(String algorithm, byte[] encoded) { |
| this.algorithm = algorithm; |
| this.encoded = encoded; |
| |
| type = NativeCrypto.EVP_PKEY_HMAC; |
| key = new OpenSSLKey(NativeCrypto.EVP_PKEY_new_mac_key(type, encoded)); |
| } |
| |
| public OpenSSLSecretKey(String algorithm, OpenSSLKey key) { |
| this.algorithm = algorithm; |
| this.key = key; |
| |
| type = NativeCrypto.EVP_PKEY_type(key.getPkeyContext()); |
| encoded = null; |
| } |
| |
| public static OpenSSLKey getInstance(SecretKey key) throws InvalidKeyException { |
| try { |
| return new OpenSSLKey(NativeCrypto.EVP_PKEY_new_mac_key(NativeCrypto.EVP_PKEY_HMAC, |
| key.getEncoded())); |
| } catch (Exception e) { |
| throw new InvalidKeyException(e); |
| } |
| } |
| |
| @Override |
| public String getAlgorithm() { |
| return algorithm; |
| } |
| |
| @Override |
| public String getFormat() { |
| if (key.isEngineBased()) { |
| return null; |
| } |
| |
| return "RAW"; |
| } |
| |
| @Override |
| public byte[] getEncoded() { |
| if (key.isEngineBased()) { |
| return null; |
| } |
| |
| return encoded; |
| } |
| |
| @Override |
| public OpenSSLKey getOpenSSLKey() { |
| return key; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o == this) { |
| return true; |
| } |
| |
| if (!(o instanceof SecretKey)) { |
| return false; |
| } |
| |
| SecretKey other = (SecretKey) o; |
| if (!algorithm.equals(other.getAlgorithm())) { |
| return false; |
| } |
| |
| if (o instanceof OpenSSLSecretKey) { |
| OpenSSLSecretKey otherOpenSSL = (OpenSSLSecretKey) o; |
| return key.equals(otherOpenSSL.getOpenSSLKey()); |
| } else if (key.isEngineBased()) { |
| return false; |
| } |
| |
| if (!getFormat().equals(other.getFormat())) { |
| return false; |
| } |
| |
| return Arrays.equals(encoded, other.getEncoded()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return key.hashCode(); |
| } |
| |
| private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException { |
| stream.defaultReadObject(); |
| |
| key = new OpenSSLKey(NativeCrypto.EVP_PKEY_new_mac_key(type, encoded)); |
| } |
| |
| private void writeObject(ObjectOutputStream stream) throws IOException { |
| if (getOpenSSLKey().isEngineBased()) { |
| throw new NotSerializableException("engine-based keys can not be serialized"); |
| } |
| |
| stream.defaultWriteObject(); |
| } |
| } |