1 /*	$NetBSD: bn_mp_to_signed_bin.c,v 1.1.1.2 2014/04/24 12:45:31 pettai Exp $	*/
2 
3 #include <tommath.h>
4 #ifdef BN_MP_TO_SIGNED_BIN_C
5 /* LibTomMath, multiple-precision integer library -- Tom St Denis
6  *
7  * LibTomMath is a library that provides multiple-precision
8  * integer arithmetic as well as number theoretic functionality.
9  *
10  * The library was designed directly after the MPI library by
11  * Michael Fromberger but has been written from scratch with
12  * additional optimizations in place.
13  *
14  * The library is free for all purposes without any express
15  * guarantee it works.
16  *
17  * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
18  */
19 
20 /* store in signed [big endian] format */
mp_to_signed_bin(mp_int * a,unsigned char * b)21 int mp_to_signed_bin (mp_int * a, unsigned char *b)
22 {
23   int     res;
24 
25   if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) {
26     return res;
27   }
28   b[0] = (unsigned char) ((a->sign == MP_ZPOS) ? 0 : 1);
29   return MP_OKAY;
30 }
31 #endif
32 
33 /* Source: /cvs/libtom/libtommath/bn_mp_to_signed_bin.c,v  */
34 /* Revision: 1.4  */
35 /* Date: 2006/12/28 01:25:13  */
36