1 /*
   2  * Copyright (c) 2014, 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.InvalidKeySpecException;
  42 import java.security.spec.KeySpec;
  43 import java.security.spec.RSAPrivateCrtKeySpec;
  44 import java.security.spec.RSAPublicKeySpec;
  45 
  46 /**
  47  * Ucrypto-private KeyFactory class for generating native keys
  48  * needed for using ucrypto APIs. Given that it's not used
  49  * externally, it only needs to support RSAPrivateCrtKeySpec
  50  * and RSAPublicKeySpec objects.
  51  *
  52  * @since 1.9
  53  */
  54 public final class NativeRSAKeyFactory extends KeyFactorySpi {
  55 
  56     @Override
  57     protected PrivateKey engineGeneratePrivate(KeySpec keySpec)
  58         throws InvalidKeySpecException {
  59         return new NativeKey.RSAPrivateCrt(keySpec);
  60     }
  61 
  62     @Override
  63     protected PublicKey engineGeneratePublic(KeySpec keySpec)
  64         throws InvalidKeySpecException {
  65         return new NativeKey.RSAPublic(keySpec);
  66     }
  67 
  68     @Override
  69     protected <T extends KeySpec> T
  70         engineGetKeySpec(Key key, Class<T> keySpec)
  71             throws InvalidKeySpecException {
  72         throw new UnsupportedOperationException();
  73     }
  74 
  75     @Override
  76     protected Key engineTranslateKey(Key key) throws InvalidKeyException {
  77         // no need to support this
  78         throw new UnsupportedOperationException();
  79     }
  80 }