mirror of http://galexander.org/git/simplesshd.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
29 lines
881 B
29 lines
881 B
#include "tommath_private.h"
|
|
#ifdef BN_MP_SQR_C
|
|
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
|
|
/* SPDX-License-Identifier: Unlicense */
|
|
|
|
/* computes b = a*a */
|
|
mp_err mp_sqr(const mp_int *a, mp_int *b)
|
|
{
|
|
mp_err err;
|
|
if (MP_HAS(S_MP_TOOM_SQR) && /* use Toom-Cook? */
|
|
(a->used >= MP_TOOM_SQR_CUTOFF)) {
|
|
err = s_mp_toom_sqr(a, b);
|
|
} else if (MP_HAS(S_MP_KARATSUBA_SQR) && /* Karatsuba? */
|
|
(a->used >= MP_KARATSUBA_SQR_CUTOFF)) {
|
|
err = s_mp_karatsuba_sqr(a, b);
|
|
} else if (MP_HAS(S_MP_SQR_FAST) && /* can we use the fast comba multiplier? */
|
|
(((a->used * 2) + 1) < MP_WARRAY) &&
|
|
(a->used < (MP_MAXFAST / 2))) {
|
|
err = s_mp_sqr_fast(a, b);
|
|
} else if (MP_HAS(S_MP_SQR)) {
|
|
err = s_mp_sqr(a, b);
|
|
} else {
|
|
err = MP_VAL;
|
|
}
|
|
b->sign = MP_ZPOS;
|
|
return err;
|
|
}
|
|
#endif
|