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Update to libtommath v1.0

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This commit is contained in:
Matt Johnston
2017-06-24 22:37:14 +08:00
parent a79b61517b
commit 364fb6019c
167 changed files with 18054 additions and 3136 deletions
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20
libtommath/bn_mp_montgomery_setup.c
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@@ -1,4 +1,4 @@
#include <tommath.h>
#include <tommath_private.h>
#ifdef BN_MP_MONTGOMERY_SETUP_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
*
@@ -12,7 +12,7 @@
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
* Tom St Denis, tstdenis82@gmail.com, http://libtom.org
*/
/* setups the montgomery reduction stuff */
@@ -36,24 +36,24 @@ mp_montgomery_setup (mp_int * n, mp_digit * rho)
}
x = (((b + 2) & 4) << 1) + b; /* here x*a==1 mod 2**4 */
x *= 2 - b * x; /* here x*a==1 mod 2**8 */
x *= 2 - (b * x); /* here x*a==1 mod 2**8 */
#if !defined(MP_8BIT)
x *= 2 - b * x; /* here x*a==1 mod 2**16 */
x *= 2 - (b * x); /* here x*a==1 mod 2**16 */
#endif
#if defined(MP_64BIT) || !(defined(MP_8BIT) || defined(MP_16BIT))
x *= 2 - b * x; /* here x*a==1 mod 2**32 */
x *= 2 - (b * x); /* here x*a==1 mod 2**32 */
#endif
#ifdef MP_64BIT
x *= 2 - b * x; /* here x*a==1 mod 2**64 */
x *= 2 - (b * x); /* here x*a==1 mod 2**64 */
#endif
/* rho = -1/m mod b */
*rho = (unsigned long)(((mp_word)1 << ((mp_word) DIGIT_BIT)) - x) & MP_MASK;
*rho = (mp_digit)(((mp_word)1 << ((mp_word) DIGIT_BIT)) - x) & MP_MASK;
return MP_OKAY;
}
#endif
/* $Source: /cvs/libtom/libtommath/bn_mp_montgomery_setup.c,v $ */
/* $Revision: 1.4 $ */
/* $Date: 2006/12/04 21:34:03 $ */
/* $Source$ */
/* $Revision$ */
/* $Date$ */