Mercurial > dropbear

comparison bn_mp_to_signed_bin.c @ 1:22d5cf7d4b1a libtommath

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Renaming branch
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:23:46 +0000
parents
children d29b64170cf0
comparison
equal deleted inserted replaced
-1:000000000000 1:22d5cf7d4b1a
1 /* LibTomMath, multiple-precision integer library -- Tom St Denis
2 *
3 * LibTomMath is a library that provides multiple-precision
4 * integer arithmetic as well as number theoretic functionality.
5 *
6 * The library was designed directly after the MPI library by
7 * Michael Fromberger but has been written from scratch with
8 * additional optimizations in place.
9 *
10 * The library is free for all purposes without any express
11 * guarantee it works.
12 *
13 * Tom St Denis, [email protected], http://math.libtomcrypt.org
14 */
15 #include <tommath.h>
16
17 /* store in signed [big endian] format */
18 int
19 mp_to_signed_bin (mp_int * a, unsigned char *b)
20 {
21 int res;
22
23 if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) {
24 return res;
25 }
26 b[0] = (unsigned char) ((a->sign == MP_ZPOS) ? 0 : 1);
27 return MP_OKAY;
28 }