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comparison bn_mp_dr_reduce.c @ 142:d29b64170cf0 libtommath-orig

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import of libtommath 0.32
author Matt Johnston <matt@ucc.asn.au>
date Sun, 19 Dec 2004 11:33:56 +0000
parents 86e0b50a9b58
children d8254fc979e9
comparison
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19:e1037a1e12e7 142:d29b64170cf0
1 #include <tommath.h>
2 #ifdef BN_MP_DR_REDUCE_C
1 /* LibTomMath, multiple-precision integer library -- Tom St Denis 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
2 * 4 *
3 * LibTomMath is a library that provides multiple-precision 5 * LibTomMath is a library that provides multiple-precision
4 * integer arithmetic as well as number theoretic functionality. 6 * integer arithmetic as well as number theoretic functionality.
5 * 7 *
10 * The library is free for all purposes without any express 12 * The library is free for all purposes without any express
11 * guarantee it works. 13 * guarantee it works.
12 * 14 *
13 * Tom St Denis, [email protected], http://math.libtomcrypt.org 15 * Tom St Denis, [email protected], http://math.libtomcrypt.org
14 */ 16 */
15 #include <tommath.h>
16 17
17 /* reduce "x" in place modulo "n" using the Diminished Radix algorithm. 18 /* reduce "x" in place modulo "n" using the Diminished Radix algorithm.
18 * 19 *
19 * Based on algorithm from the paper 20 * Based on algorithm from the paper
20 * 21 *
84 s_mp_sub(x, n, x); 85 s_mp_sub(x, n, x);
85 goto top; 86 goto top;
86 } 87 }
87 return MP_OKAY; 88 return MP_OKAY;
88 } 89 }
90 #endif