| /* |
| * Copyright (C) 2012 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.apache.harmony.xnet.provider.jsse; |
| |
| import java.math.BigInteger; |
| import java.security.InvalidKeyException; |
| import java.security.Key; |
| import java.security.KeyFactorySpi; |
| import java.security.PrivateKey; |
| import java.security.PublicKey; |
| import java.security.interfaces.DSAParams; |
| import java.security.interfaces.DSAPrivateKey; |
| import java.security.interfaces.DSAPublicKey; |
| import java.security.spec.DSAPrivateKeySpec; |
| import java.security.spec.DSAPublicKeySpec; |
| import java.security.spec.InvalidKeySpecException; |
| import java.security.spec.KeySpec; |
| import java.security.spec.PKCS8EncodedKeySpec; |
| import java.security.spec.X509EncodedKeySpec; |
| |
| public class OpenSSLDSAKeyFactory extends KeyFactorySpi { |
| |
| @Override |
| protected PublicKey engineGeneratePublic(KeySpec keySpec) throws InvalidKeySpecException { |
| if (keySpec instanceof DSAPublicKeySpec) { |
| DSAPublicKeySpec dsaKeySpec = (DSAPublicKeySpec) keySpec; |
| |
| return new OpenSSLDSAPublicKey(dsaKeySpec); |
| } else if (keySpec instanceof X509EncodedKeySpec) { |
| X509EncodedKeySpec x509KeySpec = (X509EncodedKeySpec) keySpec; |
| |
| try { |
| final OpenSSLKey key = new OpenSSLKey( |
| NativeCrypto.d2i_PUBKEY(x509KeySpec.getEncoded())); |
| return new OpenSSLDSAPublicKey(key); |
| } catch (Exception e) { |
| throw new InvalidKeySpecException(e); |
| } |
| } |
| throw new InvalidKeySpecException("Must use DSAPublicKeySpec or X509EncodedKeySpec; was " |
| + keySpec.getClass().getName()); |
| } |
| |
| @Override |
| protected PrivateKey engineGeneratePrivate(KeySpec keySpec) throws InvalidKeySpecException { |
| if (keySpec instanceof DSAPrivateKeySpec) { |
| DSAPrivateKeySpec dsaKeySpec = (DSAPrivateKeySpec) keySpec; |
| |
| return new OpenSSLDSAPrivateKey(dsaKeySpec); |
| } else if (keySpec instanceof PKCS8EncodedKeySpec) { |
| PKCS8EncodedKeySpec pkcs8KeySpec = (PKCS8EncodedKeySpec) keySpec; |
| |
| try { |
| final OpenSSLKey key = new OpenSSLKey( |
| NativeCrypto.d2i_PKCS8_PRIV_KEY_INFO(pkcs8KeySpec.getEncoded())); |
| return new OpenSSLDSAPrivateKey(key); |
| } catch (Exception e) { |
| throw new InvalidKeySpecException(e); |
| } |
| } |
| throw new InvalidKeySpecException("Must use DSAPrivateKeySpec or PKCS8EncodedKeySpec; was " |
| + keySpec.getClass().getName()); |
| } |
| |
| @Override |
| protected <T extends KeySpec> T engineGetKeySpec(Key key, Class<T> keySpec) |
| throws InvalidKeySpecException { |
| if (key == null) { |
| throw new InvalidKeySpecException("key == null"); |
| } |
| |
| if (keySpec == null) { |
| throw new InvalidKeySpecException("keySpec == null"); |
| } |
| |
| if (key instanceof DSAPublicKey) { |
| DSAPublicKey dsaKey = (DSAPublicKey) key; |
| |
| if (DSAPublicKeySpec.class.isAssignableFrom(keySpec)) { |
| BigInteger y = dsaKey.getY(); |
| |
| DSAParams params = dsaKey.getParams(); |
| BigInteger p = params.getP(); |
| BigInteger q = params.getQ(); |
| BigInteger g = params.getG(); |
| |
| return (T) new DSAPublicKeySpec(y, p, q, g); |
| } else if (X509EncodedKeySpec.class.isAssignableFrom(keySpec)) { |
| return (T) new X509EncodedKeySpec(key.getEncoded()); |
| } else { |
| throw new InvalidKeySpecException( |
| "Must be DSAPublicKeySpec or X509EncodedKeySpec; was " + keySpec.getName()); |
| } |
| } else if (key instanceof DSAPrivateKey) { |
| DSAPrivateKey dsaKey = (DSAPrivateKey) key; |
| |
| if (DSAPrivateKeySpec.class.isAssignableFrom(keySpec)) { |
| BigInteger x = dsaKey.getX(); |
| |
| DSAParams params = dsaKey.getParams(); |
| BigInteger p = params.getP(); |
| BigInteger q = params.getQ(); |
| BigInteger g = params.getG(); |
| |
| return (T) new DSAPrivateKeySpec(x, p, q, g); |
| } else if (PKCS8EncodedKeySpec.class.isAssignableFrom(keySpec)) { |
| return (T) new PKCS8EncodedKeySpec(dsaKey.getEncoded()); |
| } else { |
| throw new InvalidKeySpecException( |
| "Must be DSAPrivateKeySpec or PKCS8EncodedKeySpec; was " |
| + keySpec.getName()); |
| } |
| } else { |
| throw new InvalidKeySpecException("Must be DSAPublicKey or DSAPrivateKey; was " |
| + key.getClass().getName()); |
| } |
| } |
| |
| @Override |
| protected Key engineTranslateKey(Key key) throws InvalidKeyException { |
| if (key == null) { |
| throw new InvalidKeyException("key == null"); |
| } |
| |
| if (key instanceof DSAPublicKey) { |
| DSAPublicKey dsaKey = (DSAPublicKey) key; |
| |
| BigInteger y = dsaKey.getY(); |
| |
| DSAParams params = dsaKey.getParams(); |
| BigInteger p = params.getP(); |
| BigInteger q = params.getQ(); |
| BigInteger g = params.getG(); |
| |
| try { |
| return engineGeneratePublic(new DSAPublicKeySpec(y, p, q, g)); |
| } catch (InvalidKeySpecException e) { |
| throw new InvalidKeyException(e); |
| } |
| } else if (key instanceof DSAPrivateKey) { |
| DSAPrivateKey dsaKey = (DSAPrivateKey) key; |
| |
| BigInteger x = dsaKey.getX(); |
| |
| DSAParams params = dsaKey.getParams(); |
| BigInteger p = params.getP(); |
| BigInteger q = params.getQ(); |
| BigInteger g = params.getG(); |
| |
| try { |
| return engineGeneratePrivate(new DSAPrivateKeySpec(x, p, q, g)); |
| } catch (InvalidKeySpecException e) { |
| throw new InvalidKeyException(e); |
| } |
| } else { |
| throw new InvalidKeyException("Key must be DSAPublicKey or DSAPrivateKey; was " |
| + key.getClass().getName()); |
| } |
| } |
| } |