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138 .TH GENDSA 1 "2014-08-10" "1.0.1n" "OpenSSL"
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144 gendsa \- generate a DSA private key from a set of parameters
148 .IX Header "SYNOPSIS"
149 \&\fBopenssl\fR \fBgendsa\fR
150 [\fB\-out filename\fR]
154 [\fB\-camellia128\fR]
155 [\fB\-camellia192\fR]
156 [\fB\-camellia256\fR]
160 [\fB\-rand file(s)\fR]
164 .IX Header "DESCRIPTION"
165 The \fBgendsa\fR command generates a \s-1DSA\s0 private key from a \s-1DSA\s0 parameter file
166 (which will be typically generated by the \fBopenssl dsaparam\fR command).
169 .IP "\fB\-aes128|\-aes192|\-aes256|\-camellia128|\-camellia192|\-camellia256|\-des|\-des3|\-idea\fR" 4
170 .IX Item "-aes128|-aes192|-aes256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea"
171 These options encrypt the private key with specified
172 cipher before outputting it. A pass phrase is prompted for.
173 If none of these options is specified no encryption is used.
174 .IP "\fB\-rand file(s)\fR" 4
175 .IX Item "-rand file(s)"
176 a file or files containing random data used to seed the random number
177 generator, or an \s-1EGD\s0 socket (see \fIRAND_egd\fR\|(3)).
178 Multiple files can be specified separated by a OS-dependent character.
179 The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
181 .IP "\fB\-engine id\fR" 4
182 .IX Item "-engine id"
183 specifying an engine (by its unique \fBid\fR string) will cause \fBgendsa\fR
184 to attempt to obtain a functional reference to the specified engine,
185 thus initialising it if needed. The engine will then be set as the default
186 for all available algorithms.
187 .IP "\fBparamfile\fR" 4
189 This option specifies the \s-1DSA\s0 parameter file to use. The parameters in this
190 file determine the size of the private key. \s-1DSA\s0 parameters can be generated
191 and examined using the \fBopenssl dsaparam\fR command.
194 \&\s-1DSA\s0 key generation is little more than random number generation so it is
195 much quicker that \s-1RSA\s0 key generation for example.
197 .IX Header "SEE ALSO"
198 \&\fIopenssl_dsaparam\fR\|(1), \fIopenssl_dsa\fR\|(1), \fIopenssl_genrsa\fR\|(1),
199 \&\fIopenssl_rsa\fR\|(1)