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| author | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2019-07-10 21:33:48 +0200 |
|---|---|---|
| committer | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2020-03-19 03:18:14 +0100 |
| commit | 186b50d24e6603460b987a15b4c15782b836a9a8 (patch) | |
| tree | 4aa6a07b9a16b2b99feff67b5b5d1bb3e4cd439a /doc | |
| parent | 0032bfea12054da94be04ac26fd0ebcb955dbe67 (diff) | |
Update documentation of BN_generate_prime_ex
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9387)
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/man3/BN_generate_prime.pod | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/doc/man3/BN_generate_prime.pod b/doc/man3/BN_generate_prime.pod index 31fbc1ffa1..d26e0a99c8 100644 --- a/doc/man3/BN_generate_prime.pod +++ b/doc/man3/BN_generate_prime.pod @@ -52,7 +52,9 @@ Deprecated: BN_generate_prime_ex() generates a pseudo-random prime number of at least bit length B<bits>. The returned number is probably prime -with a negligible error. +with a negligible error. If B<add> is B<NULL> the returned prime +number will have exact bit length B<bits> with the top most two +bits set. If B<ret> is not B<NULL>, it will be used to store the number. @@ -89,7 +91,9 @@ If B<add> is not B<NULL>, the prime will fulfill the condition p % B<add> generator. If B<safe> is true, it will be a safe prime (i.e. a prime p so -that (p-1)/2 is also prime). +that (p-1)/2 is also prime). If B<safe> is true, and B<rem> == B<NULL> +the condition will be p % B<add> == 3. +It is recommended that B<add> is a multiple of 4. The random generator must be seeded prior to calling BN_generate_prime_ex(). If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to |