mirror of
https://github.com/clearml/dropbear
synced 2025-02-07 13:21:15 +00:00
1c5fda515f
From ltm-0.35.tar.bz2 SHA1 of 3f193dbae9351e92d02530994fa18236f7fde01c --HG-- branch : libtommath-orig extra : convert_revision : 2b4b13ac88b2a81e5c86ba868c92c6a452630e02
38 lines
877 B
C
38 lines
877 B
C
#include <tommath.h>
|
|
#ifdef BN_MP_SQRMOD_C
|
|
/* LibTomMath, multiple-precision integer library -- Tom St Denis
|
|
*
|
|
* LibTomMath is a library that provides multiple-precision
|
|
* integer arithmetic as well as number theoretic functionality.
|
|
*
|
|
* The library was 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://math.libtomcrypt.org
|
|
*/
|
|
|
|
/* c = a * a (mod b) */
|
|
int
|
|
mp_sqrmod (mp_int * a, mp_int * b, mp_int * c)
|
|
{
|
|
int res;
|
|
mp_int t;
|
|
|
|
if ((res = mp_init (&t)) != MP_OKAY) {
|
|
return res;
|
|
}
|
|
|
|
if ((res = mp_sqr (a, &t)) != MP_OKAY) {
|
|
mp_clear (&t);
|
|
return res;
|
|
}
|
|
res = mp_mod (&t, b, c);
|
|
mp_clear (&t);
|
|
return res;
|
|
}
|
|
#endif
|