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1=pod
2
3=head1 NAME
4
5gendsa - generate a DSA private key from a set of parameters
6
7=head1 SYNOPSIS
8
9B<openssl> B<gendsa>
10[B<-out filename>]
11[B<-des>]
12[B<-des3>]
13[B<-idea>]
14[B<-rand file(s)>]
15[B<paramfile>]
16
17=head1 DESCRIPTION
18
19The B<gendsa> command generates a DSA private key from a DSA parameter file
20(which will be typically generated by the B<openssl dsaparam> command).
21
22=head1 OPTIONS
23
24=over 4
25
26=item B<-des|-des3|-idea>
27
28These options encrypt the private key with the DES, triple DES, or the
29IDEA ciphers respectively before outputting it. A pass phrase is prompted for.
30If none of these options is specified no encryption is used.
31
32=item B<-rand file(s)>
33
34a file or files containing random data used to seed the random number
35generator, or an EGD socket (see L<RAND_egd(3)|RAND_egd(3)>).
36Multiple files can be specified separated by a OS-dependent character.
37The separator is B<;> for MS-Windows, B<,> for OpenVSM, and B<:> for
38all others.
39
40=item B<paramfile>
41
42This option specifies the DSA parameter file to use. The parameters in this
43file determine the size of the private key. DSA parameters can be generated
44and examined using the B<openssl dsaparam> command.
45
46=back
47
48=head1 NOTES
49
50DSA key generation is little more than random number generation so it is
51much quicker that RSA key generation for example.
52
53=head1 SEE ALSO
54
55L<dsaparam(1)|dsaparam(1)>, L<dsa(1)|dsa(1)>, L<genrsa(1)|genrsa(1)>,
56L<rsa(1)|rsa(1)>
57
58=cut