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136 .TH GENDSA 1 "2015-01-08" "0.9.8zd" "OpenSSL"
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142 gendsa \- generate a DSA private key from a set of parameters
144 .IX Header "SYNOPSIS"
145 \&\fBopenssl\fR \fBgendsa\fR
146 [\fB\-out filename\fR]
150 [\fB\-camellia128\fR]
151 [\fB\-camellia192\fR]
152 [\fB\-camellia256\fR]
156 [\fB\-rand file(s)\fR]
160 .IX Header "DESCRIPTION"
161 The \fBgendsa\fR command generates a \s-1DSA\s0 private key from a \s-1DSA\s0 parameter file
162 (which will be typically generated by the \fBopenssl dsaparam\fR command).
165 .IP "\fB\-aes128|\-aes192|\-aes256|\-camellia128|\-camellia192|\-camellia256|\-des|\-des3|\-idea\fR" 4
166 .IX Item "-aes128|-aes192|-aes256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea"
167 These options encrypt the private key with specified
168 cipher before outputting it. A pass phrase is prompted for.
169 If none of these options is specified no encryption is used.
170 .IP "\fB\-rand file(s)\fR" 4
171 .IX Item "-rand file(s)"
172 a file or files containing random data used to seed the random number
173 generator, or an \s-1EGD\s0 socket (see \fIRAND_egd\fR\|(3)).
174 Multiple files can be specified separated by a OS-dependent character.
175 The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
177 .IP "\fB\-engine id\fR" 4
178 .IX Item "-engine id"
179 specifying an engine (by it's unique \fBid\fR string) will cause \fBreq\fR
180 to attempt to obtain a functional reference to the specified engine,
181 thus initialising it if needed. The engine will then be set as the default
182 for all available algorithms.
183 .IP "\fBparamfile\fR" 4
185 This option specifies the \s-1DSA\s0 parameter file to use. The parameters in this
186 file determine the size of the private key. \s-1DSA\s0 parameters can be generated
187 and examined using the \fBopenssl dsaparam\fR command.
190 \&\s-1DSA\s0 key generation is little more than random number generation so it is
191 much quicker that \s-1RSA\s0 key generation for example.
193 .IX Header "SEE ALSO"
194 \&\fIdsaparam\fR\|(1), \fIdsa\fR\|(1), \fIgenrsa\fR\|(1),