diff options
Diffstat (limited to 'libtommath/tommath.h')
| -rw-r--r-- | libtommath/tommath.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libtommath/tommath.h b/libtommath/tommath.h index 1c16641..ce38975 100644 --- a/libtommath/tommath.h +++ b/libtommath/tommath.h @@ -284,9 +284,10 @@ int mp_rand(mp_int *a, int digits); int mp_rand_digit(mp_digit *r); #ifdef MP_PRNG_ENABLE_LTM_RNG -/* as last resort we will fall back to libtomcrypt's rng_get_bytes() - * in case you don't use libtomcrypt or use it w/o rng_get_bytes() - * you have to implement it somewhere else, as it's required */ +/* A last resort to provide random data on systems without any of the other + * implemented ways to gather entropy. + * It is compatible with `rng_get_bytes()` from libtomcrypt so you could + * provide that one and then set `ltm_rng = rng_get_bytes;` */ extern unsigned long (*ltm_rng)(unsigned char *out, unsigned long outlen, void (*callback)(void)); extern void (*ltm_rng_callback)(void); #endif |