1=pod 2{- OpenSSL::safe::output_do_not_edit_headers(); -} 3 4=head1 NAME 5 6openssl-gendsa - generate a DSA private key from a set of parameters 7 8=head1 SYNOPSIS 9 10B<openssl> B<gendsa> 11[B<-help>] 12[B<-out> I<filename>] 13[B<-passout> I<arg>] 14[B<-aes128>] 15[B<-aes192>] 16[B<-aes256>] 17[B<-aria128>] 18[B<-aria192>] 19[B<-aria256>] 20[B<-camellia128>] 21[B<-camellia192>] 22[B<-camellia256>] 23[B<-des>] 24[B<-des3>] 25[B<-idea>] 26[B<-verbose>] 27{- $OpenSSL::safe::opt_r_synopsis -} 28{- $OpenSSL::safe::opt_engine_synopsis -}{- $OpenSSL::safe::opt_provider_synopsis -} 29[I<paramfile>] 30 31=head1 DESCRIPTION 32 33This command generates a DSA private key from a DSA parameter file 34(which will be typically generated by the L<openssl-dsaparam(1)> command). 35 36=head1 OPTIONS 37 38=over 4 39 40=item B<-help> 41 42Print out a usage message. 43 44=item B<-out> I<filename> 45 46Output the key to the specified file. If this argument is not specified then 47standard output is used. 48 49=item B<-passout> I<arg> 50 51The passphrase used for the output file. 52See L<openssl-passphrase-options(1)>. 53 54=item B<-aes128>, B<-aes192>, B<-aes256>, B<-aria128>, B<-aria192>, B<-aria256>, B<-camellia128>, B<-camellia192>, B<-camellia256>, B<-des>, B<-des3>, B<-idea> 55 56These options encrypt the private key with specified 57cipher before outputting it. A pass phrase is prompted for. 58If none of these options is specified no encryption is used. 59 60=item B<-verbose> 61 62Print extra details about the operations being performed. 63 64{- $OpenSSL::safe::opt_r_item -} 65 66{- $OpenSSL::safe::opt_engine_item -} 67 68=item I<paramfile> 69 70The DSA parameter file to use. The parameters in this file determine 71the size of the private key. DSA parameters can be generated and 72examined using the L<openssl-dsaparam(1)> command. 73 74{- $OpenSSL::safe::opt_provider_item -} 75 76=back 77 78=head1 NOTES 79 80DSA key generation is little more than random number generation so it is 81much quicker that RSA key generation for example. 82 83=head1 SEE ALSO 84 85L<openssl(1)>, 86L<openssl-genpkey(1)>, 87L<openssl-dsaparam(1)>, 88L<openssl-dsa(1)>, 89L<openssl-genrsa(1)>, 90L<openssl-rsa(1)> 91 92=head1 HISTORY 93 94The B<-engine> option was deprecated in OpenSSL 3.0. 95 96=head1 COPYRIGHT 97 98Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved. 99 100Licensed under the Apache License 2.0 (the "License"). You may not use 101this file except in compliance with the License. You can obtain a copy 102in the file LICENSE in the source distribution or at 103L<https://www.openssl.org/source/license.html>. 104 105=cut 106