Mercurial > dropbear

comparison libtommath/bn_mp_add_d.c @ 511:582cb38e4eb5 insecure-nocrypto

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propagate from branch 'au.asn.ucc.matt.dropbear' (head cdcc3c729e29544e8b98a408e2dc60e4483dfd2a) to branch 'au.asn.ucc.matt.dropbear.insecure-nocrypto' (head 0ca38a1cf349f7426ac9de34ebe4c3e3735effab)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 06 Nov 2008 13:16:55 +0000
parents 5ff8218bcee9
children 60fc6476e044
comparison
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361:461c4b1fb35f 511:582cb38e4eb5
10 * additional optimizations in place. 10 * additional optimizations in place.
11 * 11 *
12 * The library is free for all purposes without any express 12 * The library is free for all purposes without any express
13 * guarantee it works. 13 * guarantee it works.
14 * 14 *
15 * Tom St Denis, [email protected], http://math.libtomcrypt.org 15 * Tom St Denis, [email protected], http://math.libtomcrypt.com
16 */ 16 */
17 17
18 /* single digit addition */ 18 /* single digit addition */
19 int 19 int
20 mp_add_d (mp_int * a, mp_digit b, mp_int * c) 20 mp_add_d (mp_int * a, mp_digit b, mp_int * c)
37 /* c = |a| - b */ 37 /* c = |a| - b */
38 res = mp_sub_d(a, b, c); 38 res = mp_sub_d(a, b, c);
39 39
40 /* fix sign */ 40 /* fix sign */
41 a->sign = c->sign = MP_NEG; 41 a->sign = c->sign = MP_NEG;
42
43 /* clamp */
44 mp_clamp(c);
42 45
43 return res; 46 return res;
44 } 47 }
45 48
46 /* old number of used digits in c */ 49 /* old number of used digits in c */
101 104
102 return MP_OKAY; 105 return MP_OKAY;
103 } 106 }
104 107
105 #endif 108 #endif
109
110 /* $Source: /cvs/libtom/libtommath/bn_mp_add_d.c,v $ */
111 /* $Revision: 1.4 $ */
112 /* $Date: 2006/03/31 14:18:44 $ */