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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [gnu/] [javax/] [net/] [ssl/] [provider/] [DiffieHellman.java] - Blame information for rev 769

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1 769 jeremybenn 
/* DiffieHellman.java -- Diffie-Hellman key exchange.
2 
   Copyright (C) 2006  Free Software Foundation, Inc.
3 
 
4 
This file is a part of GNU Classpath.
5 
 
6 
GNU Classpath is free software; you can redistribute it and/or modify
7 
it under the terms of the GNU General Public License as published by
8 
the Free Software Foundation; either version 2 of the License, or (at
9 
your option) any later version.
10 
 
11 
GNU Classpath is distributed in the hope that it will be useful, but
12 
WITHOUT ANY WARRANTY; without even the implied warranty of
13 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 
General Public License for more details.
15 
 
16 
You should have received a copy of the GNU General Public License
17 
along with GNU Classpath; if not, write to the Free Software
18 
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
19 
USA
20 
 
21 
Linking this library statically or dynamically with other modules is
22 
making a combined work based on this library.  Thus, the terms and
23 
conditions of the GNU General Public License cover the whole
24 
combination.
25 
 
26 
As a special exception, the copyright holders of this library give you
27 
permission to link this library with independent modules to produce an
28 
executable, regardless of the license terms of these independent
29 
modules, and to copy and distribute the resulting executable under
30 
terms of your choice, provided that you also meet, for each linked
31 
independent module, the terms and conditions of the license of that
32 
module.  An independent module is a module which is not derived from
33 
or based on this library.  If you modify this library, you may extend
34 
this exception to your version of the library, but you are not
35 
obligated to do so.  If you do not wish to do so, delete this
36 
exception statement from your version.  */
37 
 
38 
 
39 
package gnu.javax.net.ssl.provider;
40 
 
41 
import java.math.BigInteger;
42 
import java.security.AccessController;
43 
 
44 
import gnu.java.security.action.GetSecurityPropertyAction;
45 
import gnu.javax.crypto.key.dh.GnuDHPrivateKey;
46 
 
47 
/**
48 
 * <p>Simple implementation of two-party Diffie-Hellman key agreement.</p>
49 
 *
50 
 * <p>The primes used in this class are from the following documents:</p>
51 
 *
52 
 * <ul>
53 
 * <li>D. Harkins and D. Carrel, "The Internet Key Exchange (IKE)", <a
54 
 * href="http://www.ietf.org/rfc/rfc2409.txt">RFC 2409</a>.</li>
55 
 * <li>T. Kivinen and M. Kojo, "More Modular
56 
 * Exponential (MODP) Diffie-Hellman groups for Internet Key Exchange
57 
 * (IKE)", <a href="http://www.ietf.org/rfc/rfc3526.txt">RFC
58 
 * 3526</a>.</li>
59 
 * </li>
60 
 *
61 
 * <p>The generator for all these primes is 2.</p>
62 
 */
63 
final class DiffieHellman
64 
{
65 
 
66 
  // Class method.
67 
  // -------------------------------------------------------------------------
68 
 
69 
  /**
70 
   * Get the system's Diffie-Hellman parameters, in which <i>g</i> is 2
71 
   * and <i>p</i> is determined by the property
72 
   * <code>"jessie.keypool.dh.group"</code>. The default value for <i>p</i>
73 
   * is 18, corresponding to {@link #GROUP_18}.
74 
   */
75 
  static GnuDHPrivateKey getParams()
76 
  {
77 
    BigInteger p = DiffieHellman.GROUP_5;
78 
    String group = AccessController.doPrivileged
79 
      (new GetSecurityPropertyAction("jessie.key.dh.group"));
80 
    if (group != null)
81 
      {
82 
        group = group.trim();
83 
        if (group.equals("1"))
84 
          p = DiffieHellman.GROUP_1;
85 
        else if (group.equals("2"))
86 
          p = DiffieHellman.GROUP_2;
87 
        else if (group.equals("5"))
88 
          p = DiffieHellman.GROUP_5;
89 
        else if (group.equals("14"))
90 
          p = DiffieHellman.GROUP_14;
91 
        else if (group.equals("15"))
92 
          p = DiffieHellman.GROUP_15;
93 
        else if (group.equals("16"))
94 
          p = DiffieHellman.GROUP_16;
95 
        else if (group.equals("17"))
96 
          p = DiffieHellman.GROUP_17;
97 
        else if (group.equals("18"))
98 
          p = DiffieHellman.GROUP_18;
99 
      }
100 
    return new GnuDHPrivateKey(null, p, DH_G, null);
101 
  }
102 
 
103 
  // Constants.
104 
  // -------------------------------------------------------------------------
105 
 
106 
  /**
107 
   * The generator for all Diffie Hellman groups below.
108 
   */
109 
  static final BigInteger DH_G = BigInteger.valueOf(2L);
110 
 
111 
  /**
112 
   * p = 2^768 - 2 ^704 - 1 + 2^64 * { [2^638 pi] + 149686 }
113 
   */
114 
  static final BigInteger GROUP_1 = new BigInteger("00" +
115 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" +
116 
    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" +
117 
    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" +
118 
    "E485B576625E7EC6F44C42E9A63A3620FFFFFFFFFFFFFFFF", 16);
119 
 
120 
  /**
121 
   * p = 2^1024 - 2^960 - 1 + 2^64 * { [2^894 pi] + 129093 }
122 
   */
123 
  static final BigInteger GROUP_2 = new BigInteger("00" +
124 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" +
125 
    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" +
126 
    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" +
127 
    "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" +
128 
    "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381" +
129 
    "FFFFFFFFFFFFFFFF", 16);
130 
 
131 
  /**
132 
   * This prime p = 2^1536 - 2^1472 - 1 + 2^64 * { [2^1406 pi] + 741804 }.
133 
   */
134 
  static final BigInteger GROUP_5 = new BigInteger("00" +
135 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" +
136 
    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" +
137 
    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" +
138 
    "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" +
139 
    "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" +
140 
    "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" +
141 
    "83655D23DCA3AD961C62F356208552BB9ED529077096966D" +
142 
    "670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF", 16);
143 
 
144 
  /**
145 
   * p = 2^2048 - 2^1984 - 1 + 2^64 * { [2^1918 pi] + 124476 }.
146 
   */
147 
  static final BigInteger GROUP_14 = new BigInteger("00" +
148 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" +
149 
    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" +
150 
    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" +
151 
    "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" +
152 
    "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" +
153 
    "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" +
154 
    "83655D23DCA3AD961C62F356208552BB9ED529077096966D" +
155 
    "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" +
156 
    "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" +
157 
    "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" +
158 
    "15728E5A8AACAA68FFFFFFFFFFFFFFFF", 16);
159 
 
160 
  /**
161 
   * p = 2^3072 - 2^3008 - 1 + 2^64 * { [2^2942 pi] + 1690314 }.
162 
   */
163 
  static final BigInteger GROUP_15 = new BigInteger("00" +
164 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" +
165 
    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" +
166 
    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" +
167 
    "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" +
168 
    "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" +
169 
    "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" +
170 
    "83655D23DCA3AD961C62F356208552BB9ED529077096966D" +
171 
    "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" +
172 
    "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" +
173 
    "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" +
174 
    "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" +
175 
    "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" +
176 
    "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" +
177 
    "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" +
178 
    "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" +
179 
    "43DB5BFCE0FD108E4B82D120A93AD2CAFFFFFFFFFFFFFFFF", 16);
180 
 
181 
  /**
182 
   * p = 2^4096 - 2^4032 - 1 + 2^64 * { [2^3966 pi] + 240904 }.
183 
   */
184 
  static final BigInteger GROUP_16 = new BigInteger("00" +
185 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" +
186 
    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" +
187 
    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" +
188 
    "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" +
189 
    "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" +
190 
    "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" +
191 
    "83655D23DCA3AD961C62F356208552BB9ED529077096966D" +
192 
    "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" +
193 
    "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" +
194 
    "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" +
195 
    "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" +
196 
    "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" +
197 
    "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" +
198 
    "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" +
199 
    "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" +
200 
    "43DB5BFCE0FD108E4B82D120A92108011A723C12A787E6D7" +
201 
    "88719A10BDBA5B2699C327186AF4E23C1A946834B6150BDA" +
202 
    "2583E9CA2AD44CE8DBBBC2DB04DE8EF92E8EFC141FBECAA6" +
203 
    "287C59474E6BC05D99B2964FA090C3A2233BA186515BE7ED" +
204 
    "1F612970CEE2D7AFB81BDD762170481CD0069127D5B05AA9" +
205 
    "93B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199" +
206 
    "FFFFFFFFFFFFFFFF", 16);
207 
 
208 
  static final BigInteger GROUP_17 = new BigInteger("00" +
209 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E08" +
210 
    "8A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B" +
211 
    "302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9" +
212 
    "A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE6" +
213 
    "49286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8" +
214 
    "FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D" +
215 
    "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3BE39E772C" +
216 
    "180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718" +
217 
    "3995497CEA956AE515D2261898FA051015728E5A8AAAC42DAD33170D" +
218 
    "04507A33A85521ABDF1CBA64ECFB850458DBEF0A8AEA71575D060C7D" +
219 
    "B3970F85A6E1E4C7ABF5AE8CDB0933D71E8C94E04A25619DCEE3D226" +
220 
    "1AD2EE6BF12FFA06D98A0864D87602733EC86A64521F2B18177B200C" +
221 
    "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB3143DB5BFC" +
222 
    "E0FD108E4B82D120A92108011A723C12A787E6D788719A10BDBA5B26" +
223 
    "99C327186AF4E23C1A946834B6150BDA2583E9CA2AD44CE8DBBBC2DB" +
224 
    "04DE8EF92E8EFC141FBECAA6287C59474E6BC05D99B2964FA090C3A2" +
225 
    "233BA186515BE7ED1F612970CEE2D7AFB81BDD762170481CD0069127" +
226 
    "D5B05AA993B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934028492" +
227 
    "36C3FAB4D27C7026C1D4DCB2602646DEC9751E763DBA37BDF8FF9406" +
228 
    "AD9E530EE5DB382F413001AEB06A53ED9027D831179727B0865A8918" +
229 
    "DA3EDBEBCF9B14ED44CE6CBACED4BB1BDB7F1447E6CC254B33205151" +
230 
    "2BD7AF426FB8F401378CD2BF5983CA01C64B92ECF032EA15D1721D03" +
231 
    "F482D7CE6E74FEF6D55E702F46980C82B5A84031900B1C9E59E7C97F" +
232 
    "BEC7E8F323A97A7E36CC88BE0F1D45B7FF585AC54BD407B22B4154AA" +
233 
    "CC8F6D7EBF48E1D814CC5ED20F8037E0A79715EEF29BE32806A1D58B" +
234 
    "B7C5DA76F550AA3D8A1FBFF0EB19CCB1A313D55CDA56C9EC2EF29632" +
235 
    "387FE8D76E3C0468043E8F663F4860EE12BF2D5B0B7474D6E694F91E" +
236 
    "6DCC4024FFFFFFFFFFFFFFFF", 16);
237 
 
238 
  /**
239 
   * p = 2^8192 - 2^8128 - 1 + 2^64 * { [2^8062 pi] + 4743158 }.
240 
   *
241 
   * <p>This value, while quite large, is estimated to provide the equivalent
242 
   * cryptographic strength of a symmetric key between 190 and 320 bits.
243 
   */
244 
  static final BigInteger GROUP_18 = new BigInteger("00" +
245 
    "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" +
246 
    "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" +
247 
    "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" +
248 
    "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" +
249 
    "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" +
250 
    "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" +
251 
    "83655D23DCA3AD961C62F356208552BB9ED529077096966D" +
252 
    "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" +
253 
    "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" +
254 
    "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" +
255 
    "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" +
256 
    "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" +
257 
    "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" +
258 
    "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" +
259 
    "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" +
260 
    "43DB5BFCE0FD108E4B82D120A92108011A723C12A787E6D7" +
261 
    "88719A10BDBA5B2699C327186AF4E23C1A946834B6150BDA" +
262 
    "2583E9CA2AD44CE8DBBBC2DB04DE8EF92E8EFC141FBECAA6" +
263 
    "287C59474E6BC05D99B2964FA090C3A2233BA186515BE7ED" +
264 
    "1F612970CEE2D7AFB81BDD762170481CD0069127D5B05AA9" +
265 
    "93B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934028492" +
266 
    "36C3FAB4D27C7026C1D4DCB2602646DEC9751E763DBA37BD" +
267 
    "F8FF9406AD9E530EE5DB382F413001AEB06A53ED9027D831" +
268 
    "179727B0865A8918DA3EDBEBCF9B14ED44CE6CBACED4BB1B" +
269 
    "DB7F1447E6CC254B332051512BD7AF426FB8F401378CD2BF" +
270 
    "5983CA01C64B92ECF032EA15D1721D03F482D7CE6E74FEF6" +
271 
    "D55E702F46980C82B5A84031900B1C9E59E7C97FBEC7E8F3" +
272 
    "23A97A7E36CC88BE0F1D45B7FF585AC54BD407B22B4154AA" +
273 
    "CC8F6D7EBF48E1D814CC5ED20F8037E0A79715EEF29BE328" +
274 
    "06A1D58BB7C5DA76F550AA3D8A1FBFF0EB19CCB1A313D55C" +
275 
    "DA56C9EC2EF29632387FE8D76E3C0468043E8F663F4860EE" +
276 
    "12BF2D5B0B7474D6E694F91E6DBE115974A3926F12FEE5E4" +
277 
    "38777CB6A932DF8CD8BEC4D073B931BA3BC832B68D9DD300" +
278 
    "741FA7BF8AFC47ED2576F6936BA424663AAB639C5AE4F568" +
279 
    "3423B4742BF1C978238F16CBE39D652DE3FDB8BEFC848AD9" +
280 
    "22222E04A4037C0713EB57A81A23F0C73473FC646CEA306B" +
281 
    "4BCBC8862F8385DDFA9D4B7FA2C087E879683303ED5BDD3A" +
282 
    "062B3CF5B3A278A66D2A13F83F44F82DDF310EE074AB6A36" +
283 
    "4597E899A0255DC164F31CC50846851DF9AB48195DED7EA1" +
284 
    "B1D510BD7EE74D73FAF36BC31ECFA268359046F4EB879F92" +
285 
    "4009438B481C6CD7889A002ED5EE382BC9190DA6FC026E47" +
286 
    "9558E4475677E9AA9E3050E2765694DFC81F56E880B96E71" +
287 
    "60C980DD98EDD3DFFFFFFFFFFFFFFFFF", 16);
288 
 
289 
}

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