mirror of
https://github.com/clearml/dropbear
synced 2025-01-30 18:36:56 +00:00
b4bd23b4d2
* update C files * update other files * update headers * update makefiles * remove mp_set/get_double() * use ltm 1.2.0 API * update ltm_desc * use bundled tommath if system-tommath is too old * XMALLOC etc. were changed to MP_MALLOC etc.
29 lines
683 B
C
29 lines
683 B
C
#include "tommath_private.h"
|
|
#ifdef BN_MP_REDUCE_IS_2K_L_C
|
|
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
|
|
/* SPDX-License-Identifier: Unlicense */
|
|
|
|
/* determines if reduce_2k_l can be used */
|
|
mp_bool mp_reduce_is_2k_l(const mp_int *a)
|
|
{
|
|
int ix, iy;
|
|
|
|
if (a->used == 0) {
|
|
return MP_NO;
|
|
} else if (a->used == 1) {
|
|
return MP_YES;
|
|
} else if (a->used > 1) {
|
|
/* if more than half of the digits are -1 we're sold */
|
|
for (iy = ix = 0; ix < a->used; ix++) {
|
|
if (a->dp[ix] == MP_DIGIT_MAX) {
|
|
++iy;
|
|
}
|
|
}
|
|
return (iy >= (a->used/2)) ? MP_YES : MP_NO;
|
|
} else {
|
|
return MP_NO;
|
|
}
|
|
}
|
|
|
|
#endif
|