Mercurial > dropbear
annotate libtommath/bn_mp_to_signed_bin.c @ 1464:ad637c9e0f6f
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| author | houseofkodai <karthik@houseofkodai.in> |
|---|---|
| date | Thu, 25 Jan 2018 19:51:41 +0530 |
| parents | 60fc6476e044 |
| children | 8bba51a55704 |
| rev | line source |
|---|---|
| 1436 | 1 #include <tommath_private.h> |
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2 #ifdef BN_MP_TO_SIGNED_BIN_C |
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis |
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4 * |
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5 * LibTomMath is a library that provides multiple-precision |
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6 * integer arithmetic as well as number theoretic functionality. |
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7 * |
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8 * The library was designed directly after the MPI library by |
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9 * Michael Fromberger but has been written from scratch with |
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10 * additional optimizations in place. |
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11 * |
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12 * The library is free for all purposes without any express |
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13 * guarantee it works. |
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14 * |
| 1436 | 15 * Tom St Denis, [email protected], http://libtom.org |
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16 */ |
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17 |
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18 /* store in signed [big endian] format */ |
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19 int mp_to_signed_bin (mp_int * a, unsigned char *b) |
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20 { |
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21 int res; |
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22 |
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23 if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) { |
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24 return res; |
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25 } |
| 1436 | 26 b[0] = (a->sign == MP_ZPOS) ? (unsigned char)0 : (unsigned char)1; |
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27 return MP_OKAY; |
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28 } |
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29 #endif |
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30 |
| 1436 | 31 /* $Source$ */ |
| 32 /* $Revision$ */ | |
| 33 /* $Date$ */ |