| #include <tommath.h> |
| #ifdef BN_MP_TO_SIGNED_BIN_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 |
| */ |
| |
| /* store in signed [big endian] format */ |
| int |
| mp_to_signed_bin (mp_int * a, unsigned char *b) |
| { |
| int res; |
| |
| if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) { |
| return res; |
| } |
| b[0] = (unsigned char) ((a->sign == MP_ZPOS) ? 0 : 1); |
| return MP_OKAY; |
| } |
| #endif |
