X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=doc%2Fcrypto%2FBN_rand.pod;h=cbae2fca9774ad92cbe66b0ab848d0a6fdf54d0b;hp=2a8bed5fed8f1c75c3c49ff792a0c4e27110865d;hb=335c4f0966eda1374cd6f7ed646b6c2adc998885;hpb=5003a61b9f62d865bc1261af157dc283e7c31249 diff --git a/doc/crypto/BN_rand.pod b/doc/crypto/BN_rand.pod index 2a8bed5fed..cbae2fca97 100644 --- a/doc/crypto/BN_rand.pod +++ b/doc/crypto/BN_rand.pod @@ -17,10 +17,12 @@ BN_rand, BN_pseudo_rand - generate pseudo-random number =head1 DESCRIPTION BN_rand() generates a cryptographically strong pseudo-random number of -B bits in length and stores it in B. If B is true, the -two most significant bits of the number will be set to 1, so that the -product of two such random numbers will always have 2*B length. -If B is true, the number will be odd. +B bits in length and stores it in B. If B is -1, the +most significant bit of the random number can be zero. If B is 0, +it is set to 1, and if B is 1, the two most significant bits of +the number will be set to 1, so that the product of two such random +numbers will always have 2*B length. If B is true, the +number will be odd. BN_pseudo_rand() does the same, but pseudo-random numbers generated by this function are not necessarily unpredictable. They can be used for @@ -45,7 +47,7 @@ L, L =head1 HISTORY BN_rand() is available in all versions of SSLeay and OpenSSL. -BN_pseudo_rand() was added in OpenSSL 0.9.5, and BN_rand_range() -in OpenSSL 0.9.6a. +BN_pseudo_rand() was added in OpenSSL 0.9.5. The B == -1 case +and the function BN_rand_range() were added in OpenSSL 0.9.6a. =cut