01: /* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
02: /*
03: Copyright (c) 2002-2008 ymnk, JCraft,Inc. All rights reserved.
04:
05: Redistribution and use in source and binary forms, with or without
06: modification, are permitted provided that the following conditions are met:
07:
08: 1. Redistributions of source code must retain the above copyright notice,
09: this list of conditions and the following disclaimer.
10:
11: 2. Redistributions in binary form must reproduce the above copyright
12: notice, this list of conditions and the following disclaimer in
13: the documentation and/or other materials provided with the distribution.
14:
15: 3. The names of the authors may not be used to endorse or promote products
16: derived from this software without specific prior written permission.
17:
18: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
19: INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
21: INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
22: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23: LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
24: OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25: LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26: NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27: EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28: */
29:
30: package com.jcraft.jsch.jce;
31:
32: import java.security.*;
33: import java.security.interfaces.*;
34:
35: public class KeyPairGenDSA implements com.jcraft.jsch.KeyPairGenDSA {
36: byte[] x; // private
37: byte[] y; // public
38: byte[] p;
39: byte[] q;
40: byte[] g;
41:
42: public void init(int key_size) throws Exception {
43: KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DSA");
44: keyGen.initialize(key_size, new SecureRandom());
45: KeyPair pair = keyGen.generateKeyPair();
46: PublicKey pubKey = pair.getPublic();
47: PrivateKey prvKey = pair.getPrivate();
48:
49: x = ((DSAPrivateKey) prvKey).getX().toByteArray();
50: y = ((DSAPublicKey) pubKey).getY().toByteArray();
51:
52: DSAParams params = ((DSAKey) prvKey).getParams();
53: p = params.getP().toByteArray();
54: q = params.getQ().toByteArray();
55: g = params.getG().toByteArray();
56: }
57:
58: public byte[] getX() {
59: return x;
60: }
61:
62: public byte[] getY() {
63: return y;
64: }
65:
66: public byte[] getP() {
67: return p;
68: }
69:
70: public byte[] getQ() {
71: return q;
72: }
73:
74: public byte[] getG() {
75: return g;
76: }
77: }
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