dhparam: fix documentation

The default bitlength is now 2048. Also clarify that either the number
of bits or the generator must be present:

$ openssl dhparam -2
and
$ openssl dhparam 2048
generate parameters but
$ openssl dhparam
does not.

Reviewed-by: Matt Caswell <matt@openssl.org>
This commit is contained in:
Emilia Kasper 2015-05-13 12:05:41 +02:00
parent 5a1d250906
commit b5a379aae5

View File

@ -71,8 +71,10 @@ check if the parameters are valid primes and generator.
=item B<-2>, B<-5>
The generator to use, either 2 or 5. 2 is the default. If present then the
input file is ignored and parameters are generated instead.
The generator to use, either 2 or 5. If present then the
input file is ignored and parameters are generated instead. If not
present but B<numbits> is present, parameters are generated with the
default generator 2.
=item B<-rand> I<file(s)>
@ -85,9 +87,10 @@ all others.
=item I<numbits>
this option specifies that a parameter set should be generated of size
I<numbits>. It must be the last option. If not present then a value of 512
is used. If this option is present then the input file is ignored and
parameters are generated instead.
I<numbits>. It must be the last option. If this option is present then
the input file is ignored and parameters are generated instead. If
this option is not present but a generator (B<-2> or B<-5>) is
present, parameters are generated with a default length of 2048 bits.
=item B<-noout>