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Side by Side Diff: nss/mozilla/security/nss/lib/freebl/mpi/mpmontg.c

Issue 3135002: Update to NSS 3.12.7 and NSPR 4.8.6.... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 10 years, 4 months ago
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1 /* ***** BEGIN LICENSE BLOCK ***** 1 /* ***** BEGIN LICENSE BLOCK *****
2 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 2 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 * 3 *
4 * The contents of this file are subject to the Mozilla Public License Version 4 * The contents of this file are subject to the Mozilla Public License Version
5 * 1.1 (the "License"); you may not use this file except in compliance with 5 * 1.1 (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at 6 * the License. You may obtain a copy of the License at
7 * http://www.mozilla.org/MPL/ 7 * http://www.mozilla.org/MPL/
8 * 8 *
9 * Software distributed under the License is distributed on an "AS IS" basis, 9 * Software distributed under the License is distributed on an "AS IS" basis,
10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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29 * in which case the provisions of the GPL or the LGPL are applicable instead 29 * in which case the provisions of the GPL or the LGPL are applicable instead
30 * of those above. If you wish to allow use of your version of this file only 30 * of those above. If you wish to allow use of your version of this file only
31 * under the terms of either the GPL or the LGPL, and not to allow others to 31 * under the terms of either the GPL or the LGPL, and not to allow others to
32 * use your version of this file under the terms of the MPL, indicate your 32 * use your version of this file under the terms of the MPL, indicate your
33 * decision by deleting the provisions above and replace them with the notice 33 * decision by deleting the provisions above and replace them with the notice
34 * and other provisions required by the GPL or the LGPL. If you do not delete 34 * and other provisions required by the GPL or the LGPL. If you do not delete
35 * the provisions above, a recipient may use your version of this file under 35 * the provisions above, a recipient may use your version of this file under
36 * the terms of any one of the MPL, the GPL or the LGPL. 36 * the terms of any one of the MPL, the GPL or the LGPL.
37 * 37 *
38 * ***** END LICENSE BLOCK ***** */ 38 * ***** END LICENSE BLOCK ***** */
39 /* $Id: mpmontg.c,v 1.20 2006/08/29 02:41:38 nelson%bolyard.com Exp $ */ 39 /* $Id: mpmontg.c,v 1.22 2010/05/02 22:36:41 nelson%bolyard.com Exp $ */
40 40
41 /* This file implements moduluar exponentiation using Montgomery's 41 /* This file implements moduluar exponentiation using Montgomery's
42 * method for modular reduction. This file implements the method 42 * method for modular reduction. This file implements the method
43 * described as "Improvement 1" in the paper "A Cryptogrpahic Library for 43 * described as "Improvement 1" in the paper "A Cryptogrpahic Library for
44 * the Motorola DSP56000" by Stephen R. Dusse' and Burton S. Kaliski Jr. 44 * the Motorola DSP56000" by Stephen R. Dusse' and Burton S. Kaliski Jr.
45 * published in "Advances in Cryptology: Proceedings of EUROCRYPT '90" 45 * published in "Advances in Cryptology: Proceedings of EUROCRYPT '90"
46 * "Lecture Notes in Computer Science" volume 473, 1991, pg 230-244, 46 * "Lecture Notes in Computer Science" volume 473, 1991, pg 230-244,
47 * published by Springer Verlag. 47 * published by Springer Verlag.
48 */ 48 */
49 49
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1200 1200
1201 CLEANUP: 1201 CLEANUP:
1202 mp_clear(&montBase); 1202 mp_clear(&montBase);
1203 mp_clear(&goodBase); 1203 mp_clear(&goodBase);
1204 /* Don't mp_clear mmm.N because it is merely a copy of modulus. 1204 /* Don't mp_clear mmm.N because it is merely a copy of modulus.
1205 ** Just zap it. 1205 ** Just zap it.
1206 */ 1206 */
1207 memset(&mmm, 0, sizeof mmm); 1207 memset(&mmm, 0, sizeof mmm);
1208 return res; 1208 return res;
1209 } 1209 }
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