diff options
Diffstat (limited to 'random.c')
| -rw-r--r-- | random.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -606,8 +606,10 @@ random_seed(void) * call-seq: Random.urandom(size) -> string * * Returns a string, using platform providing features. - * Returned value expected to be a cryptographically secure + * Returned value is expected to be a cryptographically secure * pseudo-random number in binary form. + * This method returns nil if the feature provided by platform + * failed to prepare the result. * * In 2017, Linux manpage random(7) writes that "no cryptographic * primitive available today can hope to promise more than 256 bits of |