30 lines
769 B
C
30 lines
769 B
C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
|
|
*
|
|
* LibTomMath is library that provides for multiple-precision
|
|
* integer arithmetic as well as number theoretic functionality.
|
|
*
|
|
* The library is designed directly after the MPI library by
|
|
* Michael Fromberger but has been written from scratch with
|
|
* additional optimizations in place.
|
|
*
|
|
* The library is free for all purposes without any express
|
|
* guarantee it works.
|
|
*
|
|
* Tom St Denis, tomstdenis@iahu.ca, http://libtommath.iahu.ca
|
|
*/
|
|
#include <tommath.h>
|
|
|
|
/* computes b = a*a */
|
|
int
|
|
mp_sqr (mp_int * a, mp_int * b)
|
|
{
|
|
int res;
|
|
if (a->used > KARATSUBA_SQR_CUTOFF) {
|
|
res = mp_karatsuba_sqr (a, b);
|
|
} else {
|
|
res = s_mp_sqr (a, b);
|
|
}
|
|
b->sign = MP_ZPOS;
|
|
return res;
|
|
}
|