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authorjan.nijtmans <nijtmans@users.sourceforge.net>2019-01-28 22:03:10 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2019-01-28 22:03:10 (GMT)
commit7518a795db507343cc0aa73a0b825e51a8c86eca (patch)
tree6ec662d3bfb012894311a09a258729230243861d /libtommath/tommath.h
parentaf3406f86c40c78cff50cb5003b8be0eae448d54 (diff)
parent0f79f6ed15e27fe0856eda9d3818912f85a57a42 (diff)
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Merge libtommath v1.1.0
Diffstat (limited to 'libtommath/tommath.h')
-rw-r--r--libtommath/tommath.h7
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