SshRsaKeyPair


1   /*
2    *  SSL-Explorer
3    *
4    *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
5    *
6    *  This program is free software; you can redistribute it and/or
7    *  modify it under the terms of the GNU General Public License
8    *  as published by the Free Software Foundation; either version 2 of
9    *  the License, or (at your option) any later version.
10   *  This program is distributed in the hope that it will be useful,
11   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   *  GNU General Public License for more details.
14   *
15   *  You should have received a copy of the GNU General Public
16   *  License along with this program; if not, write to the Free Software
17   *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18   */
19              
20  package com.sslexplorer.security.pki.rsa;
21  
22  
23  import java.security.KeyPair  ;
24  import java.security.KeyPairGenerator  ;
25  import java.security.NoSuchAlgorithmException  ;
26  import java.security.interfaces.RSAPrivateKey  ;
27  import java.security.interfaces.RSAPublicKey  ;
28  
29  import com.sslexplorer.security.pki.InvalidKeyException;
30  import com.sslexplorer.security.pki.SshKeyPair;
31  import com.sslexplorer.security.pki.SshPrivateKey;
32  import com.sslexplorer.security.pki.SshPublicKey;
33  import com.sslexplorer.security.pki.Utils;
34  
35  
36  /**
37   *
38   *
39   * @author $author$
40   */
41  public class SshRsaKeyPair extends SshKeyPair {
42      private RSAPrivateKey   prvKey;
43      private RSAPublicKey   pubKey;
44  
45      /**
46       * Creates a new SshRsaKeyPair object.
47       */
48      public SshRsaKeyPair() {
49      }
50  
51      /**
52       *
53       *
54       * @param encoded
55       *
56       * @return
57       *
58       * @throws InvalidKeyException
59       */
60      public SshPrivateKey decodePrivateKey(byte[] encoded)
61          throws InvalidKeyException {
62          return new SshRsaPrivateKey(encoded);
63      }
64  
65      /**
66       *
67       *
68       * @param encoded
69       *
70       * @return
71       *
72       * @throws InvalidKeyException
73       */
74      public SshPublicKey decodePublicKey(byte[] encoded)
75          throws InvalidKeyException {
76          return new SshRsaPublicKey(encoded);
77      }
78  
79      /**
80       *
81       *
82       * @param bits
83       */
84      public void generate(int bits) {
85          try {
86              // Initialize the generator
87              KeyPairGenerator   keyGen = KeyPairGenerator.getInstance("RSA");
88              keyGen.initialize(bits, Utils.getRND());
89  
90              KeyPair   pair = keyGen.generateKeyPair();
91  
92              // Get the keys and set
93              setPrivateKey(new SshRsaPrivateKey(
94                      (RSAPrivateKey  ) pair.getPrivate(),
95                      (RSAPublicKey  ) pair.getPublic()));
96          } catch (NoSuchAlgorithmException   nsae) {
97              prvKey = null;
98              pubKey = null;
99          }
100     }
101 }
102
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