diff options
Diffstat (limited to 'libtommath/bn_mp_rand.c')
| -rw-r--r-- | libtommath/bn_mp_rand.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libtommath/bn_mp_rand.c b/libtommath/bn_mp_rand.c index 92a9a97..2ed665e 100644 --- a/libtommath/bn_mp_rand.c +++ b/libtommath/bn_mp_rand.c @@ -15,7 +15,10 @@ * Tom St Denis, tstdenis82@gmail.com, http://libtom.org */ -#if MP_GEN_RANDOM_MAX == 0xffffffff +#if defined(MP_8BIT) || defined(MP_16BIT) +#define MP_GEN_RANDOM_SHIFT DIGIT_BIT +#else +#if MP_GEN_RANDOM_MAX == 0xffffffffu #define MP_GEN_RANDOM_SHIFT 32 #elif MP_GEN_RANDOM_MAX == 32767 /* SHRT_MAX */ @@ -26,6 +29,7 @@ #elif !defined(MP_GEN_RANDOM_SHIFT) #error Thou shalt define their own valid MP_GEN_RANDOM_SHIFT #endif +#endif /* makes a pseudo-random int of a given size */ static mp_digit s_gen_random(void) @@ -54,7 +58,7 @@ int mp_rand(mp_int *a, int digits) /* first place a random non-zero digit */ do { d = s_gen_random(); - } while (d == 0); + } while (d == 0u); if ((res = mp_add_d(a, d, a)) != MP_OKAY) { return res; |