generic-library/openssl
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

GH367: Fix dsa keygen for too-short seed

Browse Source 
If the seed value for dsa key generation is too short (< qsize),
return an error. Also update the documentation.

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
This commit is contained in:
Ismo Puustinen
2015-08-07 22:14:47 -04:00
committed by Rich Salz
parent 3c65047d30
commit f00a10b897
3 changed files with 21 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
doc/crypto/DSA_generate_parameters.pod
View File

@@ -23,13 +23,12 @@ Deprecated:
DSA_generate_parameters_ex() generates primes p and q and a generator g
for use in the DSA and stores the result in B<dsa>.
B<bits> is the length of the prime to be generated; the DSS allows a
maximum of 1024 bits.
B<bits> is the length of the prime p to be generated.
For lengths under 2048 bits, the length of q is 160 bits; for lengths
at least 2048, it is set to 256 bits.
If B<seed> is B<NULL> or B<seed_len> E<lt> 20, the primes will be
generated at random. Otherwise, the seed is used to generate
them. If the given seed does not yield a prime q, a new random
seed is chosen and placed at B<seed>.
If B<seed> is NULL, the primes will be generated at random.
If B<seed_len> is less than the length of q, an error is returned.
DSA_generate_parameters_ex() places the iteration count in
*B<counter_ret> and a counter used for finding a generator in