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Diffstat (limited to 'doc/crypto/BN_rand.pod')
| -rw-r--r-- | doc/crypto/BN_rand.pod | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/crypto/BN_rand.pod b/doc/crypto/BN_rand.pod index e8cbf658b47d8..a1513a952654e 100644 --- a/doc/crypto/BN_rand.pod +++ b/doc/crypto/BN_rand.pod @@ -19,7 +19,11 @@ BN_rand, BN_pseudo_rand, BN_rand_range, BN_pseudo_rand_range - generate pseudo-r =head1 DESCRIPTION BN_rand() generates a cryptographically strong pseudo-random number of -B<bits> in length and stores it in B<rnd>. If B<top> is -1, the +B<bits> in length and stores it in B<rnd>. +If B<bits> is less than zero, or too small to +accomodate the requirements specified by the B<top> and B<bottom> +parameters, an error is returned. +If B<top> is -1, the most significant bit of the random number can be zero. If B<top> is 0, it is set to 1, and if B<top> is 1, the two most significant bits of the number will be set to 1, so that the product of two such random |