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.\" ======================================================================
.\"
.IX Title "GENDSA 1"
.TH GENDSA 1 "0.9.7" "2003-02-03" "OpenSSL"
.UC
.SH "NAME"
gendsa \- generate a \s-1DSA\s0 private key from a set of parameters
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBopenssl\fR \fBgendsa\fR
[\fB\-out filename\fR]
[\fB\-des\fR]
[\fB\-des3\fR]
[\fB\-idea\fR]
[\fB\-rand \f(BIfile\fB\|(s)\fR]
[\fBparamfile\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fBgendsa\fR command generates a \s-1DSA\s0 private key from a \s-1DSA\s0 parameter file
(which will be typically generated by the \fBopenssl dsaparam\fR command).
.SH "OPTIONS"
.IX Header "OPTIONS"
.Ip "\fB\-des|\-des3|\-idea\fR" 4
.IX Item "-des|-des3|-idea"
These options encrypt the private key with the \s-1DES\s0, triple \s-1DES\s0, or the
\&\s-1IDEA\s0 ciphers respectively before outputting it. A pass phrase is prompted for.
If none of these options is specified no encryption is used.
.Ip "\fB\-rand \f(BIfile\fB\|(s)\fR" 4
.IX Item "-rand file"
a file or files containing random data used to seed the random number
generator, or an \s-1EGD\s0 socket (see RAND_egd(3)).
Multiple files can be specified separated by a OS-dependent character.
The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
all others.
.Ip "\fBparamfile\fR" 4
.IX Item "paramfile"
This option specifies the \s-1DSA\s0 parameter file to use. The parameters in this
file determine the size of the private key. \s-1DSA\s0 parameters can be generated
and examined using the \fBopenssl dsaparam\fR command.
.SH "NOTES"
.IX Header "NOTES"
\&\s-1DSA\s0 key generation is little more than random number generation so it is
much quicker that \s-1RSA\s0 key generation for example.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
dsaparam(1), dsa(1), genrsa(1),
rsa(1)
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