diff options
Diffstat (limited to 'luni/src/main/java/org/apache/harmony/security/provider/crypto/DSAKeyFactoryImpl.java')
| -rw-r--r-- | luni/src/main/java/org/apache/harmony/security/provider/crypto/DSAKeyFactoryImpl.java | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/luni/src/main/java/org/apache/harmony/security/provider/crypto/DSAKeyFactoryImpl.java b/luni/src/main/java/org/apache/harmony/security/provider/crypto/DSAKeyFactoryImpl.java deleted file mode 100644 index 690d16e..0000000 --- a/luni/src/main/java/org/apache/harmony/security/provider/crypto/DSAKeyFactoryImpl.java +++ /dev/null @@ -1,217 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You 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.security.provider.crypto; - -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 DSAKeyFactoryImpl extends KeyFactorySpi { - - /** - * This method generates a DSAPrivateKey object from the provided key specification. - * - * @param - * keySpec - the specification (key material) for the DSAPrivateKey. - * - * @return - * a DSAPrivateKey object - * - * @throws InvalidKeySpecException - * if "keySpec" is neither DSAPrivateKeySpec nor PKCS8EncodedKeySpec - */ - protected PrivateKey engineGeneratePrivate(KeySpec keySpec) - throws InvalidKeySpecException { - - if (keySpec != null) { - if (keySpec instanceof DSAPrivateKeySpec) { - - return new DSAPrivateKeyImpl((DSAPrivateKeySpec) keySpec); - } - if (keySpec instanceof PKCS8EncodedKeySpec) { - - return new DSAPrivateKeyImpl((PKCS8EncodedKeySpec) keySpec); - } - } - throw new InvalidKeySpecException("'keySpec' is neither DSAPrivateKeySpec nor PKCS8EncodedKeySpec"); - } - - /** - * This method generates a DSAPublicKey object from the provided key specification. - * - * @param - * keySpec - the specification (key material) for the DSAPublicKey. - * - * @return - * a DSAPublicKey object - * - * @throws InvalidKeySpecException - * if "keySpec" is neither DSAPublicKeySpec nor X509EncodedKeySpec - */ - protected PublicKey engineGeneratePublic(KeySpec keySpec) - throws InvalidKeySpecException { - - if (keySpec != null) { - if (keySpec instanceof DSAPublicKeySpec) { - - return new DSAPublicKeyImpl((DSAPublicKeySpec) keySpec); - } - if (keySpec instanceof X509EncodedKeySpec) { - - return new DSAPublicKeyImpl((X509EncodedKeySpec) keySpec); - } - } - throw new InvalidKeySpecException("'keySpec' is neither DSAPublicKeySpec nor X509EncodedKeySpec"); - } - - /** - * This method returns a specification for the supplied key. - * - * The specification will be returned in the form of an object of the type - * specified by keySpec. - * - * @param key - - * either DSAPrivateKey or DSAPublicKey - * @param keySpec - - * either DSAPrivateKeySpec.class or DSAPublicKeySpec.class - * - * @return either a DSAPrivateKeySpec or a DSAPublicKeySpec - * - * @throws InvalidKeySpecException - * if "keySpec" is not a specification for DSAPublicKey or - * DSAPrivateKey - */ - protected <T extends KeySpec> T engineGetKeySpec(Key key, Class<T> keySpec) - throws InvalidKeySpecException { - - BigInteger p, q, g, x, y; - - if (key != null) { - if (keySpec == null) { - throw new NullPointerException("keySpec == null"); - } - if (key instanceof DSAPrivateKey) { - DSAPrivateKey privateKey = (DSAPrivateKey) key; - - if (keySpec.equals(DSAPrivateKeySpec.class)) { - - x = privateKey.getX(); - - DSAParams params = privateKey.getParams(); - - p = params.getP(); - q = params.getQ(); - g = params.getG(); - - return (T) (new DSAPrivateKeySpec(x, p, q, g)); - } - - if (keySpec.equals(PKCS8EncodedKeySpec.class)) { - return (T) (new PKCS8EncodedKeySpec(key.getEncoded())); - } - - throw new InvalidKeySpecException("'keySpec' is neither DSAPrivateKeySpec nor PKCS8EncodedKeySpec"); - } - - if (key instanceof DSAPublicKey) { - DSAPublicKey publicKey = (DSAPublicKey) key; - - if (keySpec.equals(DSAPublicKeySpec.class)) { - - y = publicKey.getY(); - - DSAParams params = publicKey.getParams(); - - p = params.getP(); - q = params.getQ(); - g = params.getG(); - - return (T) (new DSAPublicKeySpec(y, p, q, g)); - } - - if (keySpec.equals(X509EncodedKeySpec.class)) { - return (T) (new X509EncodedKeySpec(key.getEncoded())); - } - - throw new InvalidKeySpecException("'keySpec' is neither DSAPublicKeySpec nor X509EncodedKeySpec"); - } - } - throw new InvalidKeySpecException("'key' is neither DSAPublicKey nor DSAPrivateKey"); - } - - /** - * The method generates a DSAPublicKey object from the provided key. - * - * @param - * key - a DSAPublicKey object or DSAPrivateKey object. - * - * @return - * object of the same type as the "key" argument - * - * @throws InvalidKeyException - * if "key" is neither DSAPublicKey nor DSAPrivateKey - */ - protected Key engineTranslateKey(Key key) throws InvalidKeyException { - - if (key != null) { - if (key instanceof DSAPrivateKey) { - - DSAPrivateKey privateKey = (DSAPrivateKey) key; - DSAParams params = privateKey.getParams(); - - try { - return engineGeneratePrivate(new DSAPrivateKeySpec( - privateKey.getX(), params.getP(), params.getQ(), - params.getG())); - } catch (InvalidKeySpecException e) { - // Actually this exception shouldn't be thrown - throw new InvalidKeyException("ATTENTION: InvalidKeySpecException: " + e); - } - } - - if (key instanceof DSAPublicKey) { - - DSAPublicKey publicKey = (DSAPublicKey) key; - DSAParams params = publicKey.getParams(); - - try { - return engineGeneratePublic(new DSAPublicKeySpec(publicKey - .getY(), params.getP(), params.getQ(), params - .getG())); - } catch (InvalidKeySpecException e) { - // Actually this exception shouldn't be thrown - throw new InvalidKeyException("ATTENTION: InvalidKeySpecException: " + e); - } - } - } - throw new InvalidKeyException("'key' is neither DSAPublicKey nor DSAPrivateKey"); - } - -} |