Package common :: Module dh
Source Code for Module common.dh

  1  # -*- coding:utf-8 -*- 
  2  ## src/common/dh.py 
  3  ## 
  4  ## Copyright (C) 2007-2010 Yann Leboulanger <asterix AT lagaule.org> 
  5  ## Copyright (C) 2008 Brendan Taylor <whateley AT gmail.com> 
  6  ## 
  7  ## This file is part of Gajim. 
  8  ## 
  9  ## Gajim is free software; you can redistribute it and/or modify 
 10  ## it under the terms of the GNU General Public License as published 
 11  ## by the Free Software Foundation; version 3 only. 
 12  ## 
 13  ## Gajim is distributed in the hope that it will be useful, 
 14  ## but WITHOUT ANY WARRANTY; without even the implied warranty of 
 15  ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 16  ## GNU General Public License for more details. 
 17  ## 
 18  ## You should have received a copy of the GNU General Public License 
 19  ## along with Gajim. If not, see <http://www.gnu.org/licenses/>. 
 20  ## 
 21   
 22  """ 
 23  This module defines a number of constants; specifically, large primes suitable 
 24  for use with the Diffie-Hellman key exchange 
 25   
 26  These constants have been obtained from RFC2409 and RFC3526. 
 27  """ 
 28   
 29  import string 
 30   
 31  generators = [None, # one to get the right offset 
 32                2, 
 33                2, 
 34                None, 
 35                None, 
 36                2, 
 37                None, 
 38                None, 
 39                None, 
 40                None, 
 41                None, 
 42                None, 
 43                None, 
 44                None, 
 45                2, # group 14 
 46                2, 
 47                2, 
 48                2, 
 49                2] 
 50   
 51  hex_primes = [None, 
 52   
 53  # group 1 
 54  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 
 55  29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD 
 56  EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 
 57  E485B576 625E7EC6 F44C42E9 A63A3620 FFFFFFFF FFFFFFFF''', 
 58   
 59  # group 2 
 60  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 
 61  29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD 
 62  EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 
 63  E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED 
 64  EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE65381 
 65  FFFFFFFF FFFFFFFF''', 
 66   
 67  # XXX how do I obtain these? 
 68  None, 
 69  None, 
 70   
 71  # group 5 
 72  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 
 73  29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD 
 74  EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 
 75  E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED 
 76  EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D 
 77  C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F 
 78  83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D 
 79  670C354E 4ABC9804 F1746C08 CA237327 FFFFFFFF FFFFFFFF''', 
 80   
 81  None, 
 82  None, 
 83  None, 
 84  None, 
 85  None, 
 86  None, 
 87  None, 
 88  None, 
 89   
 90  # group 14 
 91  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 
 92  29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD 
 93  EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 
 94  E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED 
 95  EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D 
 96  C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F 
 97  83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D 
 98  670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B 
 99  E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9 
100  DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510 
101  15728E5A 8AACAA68 FFFFFFFF FFFFFFFF''', 
102   
103  # group 15 
104  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 
105  29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD 
106  EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 
107  E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED 
108  EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D 
109  C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F 
110  83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D 
111  670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B 
112  E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9 
113  DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510 
114  15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64 
115  ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7 
116  ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B 
117  F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C 
118  BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31 
119  43DB5BFC E0FD108E 4B82D120 A93AD2CA FFFFFFFF FFFFFFFF''', 
120   
121  # group 16 
122  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 
123  29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD 
124  EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 
125  E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED 
126  EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D 
127  C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F 
128  83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D 
129  670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B 
130  E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9 
131  DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510 
132  15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64 
133  ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7 
134  ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B 
135  F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C 
136  BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31 
137  43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7 
138  88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA 
139  2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6 
140  287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED 
141  1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9 
142  93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34063199 
143  FFFFFFFF FFFFFFFF''', 
144   
145  # group 17 
146  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 29024E08 
147  8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD EF9519B3 CD3A431B 
148  302B0A6D F25F1437 4FE1356D 6D51C245 E485B576 625E7EC6 F44C42E9 
149  A637ED6B 0BFF5CB6 F406B7ED EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 
150  49286651 ECE45B3D C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 
151  FD24CF5F 83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D 
152  670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B E39E772C 
153  180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9 DE2BCBF6 95581718 
154  3995497C EA956AE5 15D22618 98FA0510 15728E5A 8AAAC42D AD33170D 
155  04507A33 A85521AB DF1CBA64 ECFB8504 58DBEF0A 8AEA7157 5D060C7D 
156  B3970F85 A6E1E4C7 ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 
157  1AD2EE6B F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C 
158  BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31 43DB5BFC 
159  E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7 88719A10 BDBA5B26 
160  99C32718 6AF4E23C 1A946834 B6150BDA 2583E9CA 2AD44CE8 DBBBC2DB 
161  04DE8EF9 2E8EFC14 1FBECAA6 287C5947 4E6BC05D 99B2964F A090C3A2 
162  233BA186 515BE7ED 1F612970 CEE2D7AF B81BDD76 2170481C D0069127 
163  D5B05AA9 93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492 
164  36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD F8FF9406 
165  AD9E530E E5DB382F 413001AE B06A53ED 9027D831 179727B0 865A8918 
166  DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B DB7F1447 E6CC254B 33205151 
167  2BD7AF42 6FB8F401 378CD2BF 5983CA01 C64B92EC F032EA15 D1721D03 
168  F482D7CE 6E74FEF6 D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F 
169  BEC7E8F3 23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA 
170  CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328 06A1D58B 
171  B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C DA56C9EC 2EF29632 
172  387FE8D7 6E3C0468 043E8F66 3F4860EE 12BF2D5B 0B7474D6 E694F91E 
173  6DCC4024 FFFFFFFF FFFFFFFF''', 
174   
175  # group 18 
176  '''FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1 
177  29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD 
178  EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245 
179  E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED 
180  EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D 
181  C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F 
182  83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D 
183  670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B 
184  E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9 
185  DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510 
186  15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64 
187  ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7 
188  ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B 
189  F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C 
190  BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31 
191  43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7 
192  88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA 
193  2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6 
194  287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED 
195  1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9 
196  93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492 
197  36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD 
198  F8FF9406 AD9E530E E5DB382F 413001AE B06A53ED 9027D831 
199  179727B0 865A8918 DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B 
200  DB7F1447 E6CC254B 33205151 2BD7AF42 6FB8F401 378CD2BF 
201  5983CA01 C64B92EC F032EA15 D1721D03 F482D7CE 6E74FEF6 
202  D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F BEC7E8F3 
203  23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA 
204  CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328 
205  06A1D58B B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C 
206  DA56C9EC 2EF29632 387FE8D7 6E3C0468 043E8F66 3F4860EE 
207  12BF2D5B 0B7474D6 E694F91E 6DBE1159 74A3926F 12FEE5E4 
208  38777CB6 A932DF8C D8BEC4D0 73B931BA 3BC832B6 8D9DD300 
209  741FA7BF 8AFC47ED 2576F693 6BA42466 3AAB639C 5AE4F568 
210  3423B474 2BF1C978 238F16CB E39D652D E3FDB8BE FC848AD9 
211  22222E04 A4037C07 13EB57A8 1A23F0C7 3473FC64 6CEA306B 
212  4BCBC886 2F8385DD FA9D4B7F A2C087E8 79683303 ED5BDD3A 
213  062B3CF5 B3A278A6 6D2A13F8 3F44F82D DF310EE0 74AB6A36 
214  4597E899 A0255DC1 64F31CC5 0846851D F9AB4819 5DED7EA1 
215  B1D510BD 7EE74D73 FAF36BC3 1ECFA268 359046F4 EB879F92 
216  4009438B 481C6CD7 889A002E D5EE382B C9190DA6 FC026E47 
217  9558E447 5677E9AA 9E3050E2 765694DF C81F56E8 80B96E71 
218  60C980DD 98EDD3DF FFFFFFFF FFFFFFFF''' 
219  ] 
220   
221  all_ascii = ''.join(map(chr, range(256))) 
222   
223 -def hex_to_decimal(stripee): 
224      if not stripee: 
225          return None 
226   
227      return int(stripee.translate(all_ascii, string.whitespace), 16) 
228   
229  primes = map(hex_to_decimal, hex_primes) 
230