1 #include <tommath.h> 2 #ifdef BN_MP_TO_SIGNED_BIN_C 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis 4 * 5 * LibTomMath is a library that provides multiple-precision 6 * integer arithmetic as well as number theoretic functionality. 7 * 8 * The library was designed directly after the MPI library by 9 * Michael Fromberger but has been written from scratch with 10 * additional optimizations in place. 11 * 12 * The library is free for all purposes without any express 13 * guarantee it works. 14 * 15 * Tom St Denis, tomstdenis (at) gmail.com, http://math.libtomcrypt.com 16 */ 17 18 /* store in signed [big endian] format */ 19 int 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 } 29 #endif 30 31 /* $Source: /cvs/libtom/libtommath/bn_mp_to_signed_bin.c,v $ */ 32 /* $Revision: 1.3 $ */ 33 /* $Date: 2006/03/31 14:18:44 $ */ 34
