ClearML/dropbear
1
0
Fork 0
mirror of https://github.com/clearml/dropbear synced 2025-06-26 18:17:32 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Update to libtommath v1.0

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

18
libtommath/bn_mp_dr_reduce.c
View File

@@ -1,4 +1,4 @@
#include <tommath.h>
#include <tommath_private.h>
#ifdef BN_MP_DR_REDUCE_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
*/
/* reduce "x" in place modulo "n" using the Diminished Radix algorithm.
@@ -40,7 +40,7 @@ mp_dr_reduce (mp_int * x, mp_int * n, mp_digit k)
m = n->used;
/* ensure that "x" has at least 2m digits */
if (x->alloc < m + m) {
if (x->alloc < (m + m)) {
if ((err = mp_grow (x, m + m)) != MP_OKAY) {
return err;
}
@@ -62,7 +62,7 @@ top:
/* compute (x mod B**m) + k * [x/B**m] inline and inplace */
for (i = 0; i < m; i++) {
r = ((mp_word)*tmpx2++) * ((mp_word)k) + *tmpx1 + mu;
r = (((mp_word)*tmpx2++) * (mp_word)k) + *tmpx1 + mu;
*tmpx1++ = (mp_digit)(r & MP_MASK);
mu = (mp_digit)(r >> ((mp_word)DIGIT_BIT));
}
@@ -82,13 +82,15 @@ top:
* Each successive "recursion" makes the input smaller and smaller.
*/
if (mp_cmp_mag (x, n) != MP_LT) {
s_mp_sub(x, n, x);
if ((err = s_mp_sub(x, n, x)) != MP_OKAY) {
return err;
}
goto top;
}
return MP_OKAY;
}
#endif
/* $Source: /cvs/libtom/libtommath/bn_mp_dr_reduce.c,v $ */
/* $Revision: 1.3 $ */
/* $Date: 2006/03/31 14:18:44 $ */
/* $Source$ */
/* $Revision$ */
/* $Date$ */