Add new program dhparam and update docs.

This commit is contained in:
Dr. Stephen Henson
2000-01-22 13:58:29 +00:00
parent bda70ed430
commit 09483c58e3
7 changed files with 418 additions and 88 deletions

View File

@@ -2,7 +2,7 @@
=head1 NAME
dh - DH parameter manipulation and generation
dhparam - DH parameter manipulation and generation
=head1 SYNOPSIS
@@ -14,6 +14,10 @@ B<openssl dh>
[B<-noout>]
[B<-text>]
[B<-C>]
[B<-2>]
[B<-5>]
[B<-rand file(s)>]
[numbits]
=head1 DESCRIPTION
@@ -46,6 +50,25 @@ This specifies the output filename parameters to. Standard output is used
if this option is not present. The output filename should B<not> be the same
as the input filename.
=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.
=item B<-rand file(s)>
a file or files containing random data used to seed the random number
generator. Multiple files can be specified separated by a OS-dependent
character. For MS-Windows, the separator is B<;>. For OpenVMS, it's
B<,>. For all others, it's B<:>.
=item B<numbits>
this option specifies that a parameter set should be generated of size
B<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.
=item B<-noout>
this option inhibits the output of the encoded version of the parameters.
@@ -61,6 +84,13 @@ be loaded by calling the B<get_dhXXX()> function.
=back
=head1 WARNINGS
The program B<dhparam> combines the functionality of the programs B<dh> and
B<gendh> in previous versions of OpenSSL and SSLeay. The B<dh> and B<gendh>
programs are retained for now but may have different purposes in future
versions of OpenSSL.
=head1 NOTES
PEM format DH parameters use the header and footer lines:
@@ -75,9 +105,6 @@ This program manipulates DH parameters not keys.
=head1 BUGS
This program is badly named: the B<rsa> and B<dsa> programs manipulate keys
and not parameters.
There should be a way to generate and manipulate DH keys.
=head1 SEE ALSO

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@@ -1,74 +0,0 @@
=pod
=head1 NAME
gendh - DH parameter generation
=head1 SYNOPSIS
B<openssl gendh>
[B<-out filename>]
[B<-2>]
[B<-5>]
[B<-rand file(s)>]
[numbits]
=head1 DESCRIPTION
This command is used to generate DH parameter files.
=head1 OPTIONS
=over 4
=item B<-out filename>
This specifies the output filename parameters to. Standard output is used
if this option is not present. The output format is a base64 encoded form of
a PKCS#5 DHParameter structure.
=item B<-2>, B<-5>
The generator to use, either 2 or 5. 2 is the default.
=item B<-rand file(s)>
a file or files containing random data used to seed the random number
generator. Multiple files can be specified separated by a OS-dependent
character. For MS-Windows, the separator is B<;>. For OpenVMS, it's
B<,>. For all others, it's B<:>.
=item B<numbits>
this option specifies that a parameter set should be generated of size
B<numbits>. It must be the last option. If not present then a value of 512
is used.
=back
=head1 NOTES
PEM format DH parameters use the header and footer lines:
-----BEGIN DH PARAMETERS-----
-----END DH PARAMETERS-----
DH parameter generation is a slow process and as a result the same set of
DH parameters is often reused.
OpenSSL currently uses PKCS#3 DH not the more recent X9.42 DH.
This program creates DH parameters only, not DH keys.
=head1 BUGS
The program is badly named. The programs B<gendsa> and B<genrsa> generate
actual keys and not parameters.
There should be a way to generate and manipulate DH keys.
=head1 SEE ALSO
dsaparam(1)
=cut