1 /*
   2  * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.oracle.security.ucrypto;
  27 
  28 import java.util.Set;
  29 import java.util.Arrays;
  30 import java.util.concurrent.ConcurrentSkipListSet;
  31 import java.lang.ref.*;
  32 
  33 import java.math.BigInteger;
  34 import java.security.InvalidKeyException;
  35 import java.security.NoSuchAlgorithmException;
  36 import java.security.Key;
  37 import java.security.PublicKey;
  38 import java.security.PrivateKey;
  39 import java.security.KeyFactorySpi;
  40 
  41 import java.security.spec.*;
  42 
  43 /**
  44  * Ucrypto-private KeyFactory class for generating native keys
  45  * needed for using ucrypto APIs.
  46  *
  47  * @since 9
  48  */
  49 public final class NativeRSAKeyFactory extends KeyFactorySpi {
  50 
  51     @Override
  52     protected PrivateKey engineGeneratePrivate(KeySpec keySpec)
  53         throws InvalidKeySpecException {
  54         if (keySpec instanceof RSAPrivateCrtKeySpec) {
  55             return new NativeKey.RSAPrivateCrt(keySpec);
  56         } else if (keySpec instanceof RSAPrivateKeySpec) {
  57             return new NativeKey.RSAPrivate(keySpec);
  58         } else {
  59             throw new InvalidKeySpecException("Unsupported key spec." +
  60                 " Received: " + keySpec.getClass().getName());
  61         }
  62     }
  63 
  64     @Override
  65     protected PublicKey engineGeneratePublic(KeySpec keySpec)
  66         throws InvalidKeySpecException {
  67         return new NativeKey.RSAPublic(keySpec);
  68     }
  69 
  70     @Override
  71     protected <T extends KeySpec> T
  72         engineGetKeySpec(Key key, Class<T> keySpec)
  73             throws InvalidKeySpecException {
  74         throw new UnsupportedOperationException();
  75     }
  76 
  77     @Override
  78     protected Key engineTranslateKey(Key key) throws InvalidKeyException {
  79         // no need to support this
  80         throw new UnsupportedOperationException();
  81     }
  82 }