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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" openssl\-gendsa, gendsa \- generate a DSA private key from a set of parameters .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fBopenssl\fR \fBgendsa\fR [\fB\-help\fR] [\fB\-out filename\fR] [\fB\-aes128\fR] [\fB\-aes192\fR] [\fB\-aes256\fR] [\fB\-aria128\fR] [\fB\-aria192\fR] [\fB\-aria256\fR] [\fB\-camellia128\fR] [\fB\-camellia192\fR] [\fB\-camellia256\fR] [\fB\-des\fR] [\fB\-des3\fR] [\fB\-idea\fR] [\fB\-rand file...\fR] [\fB\-writerand file\fR] [\fB\-engine id\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\-help\fR" 4 .IX Item "-help" Print out a usage message. .IP "\fB\-out filename\fR" 4 .IX Item "-out filename" Output the key to the specified file. If this argument is not specified then standard output is used. .IP "\fB\-aes128\fR, \fB\-aes192\fR, \fB\-aes256\fR, \fB\-aria128\fR, \fB\-aria192\fR, \fB\-aria256\fR, \fB\-camellia128\fR, \fB\-camellia192\fR, \fB\-camellia256\fR, \fB\-des\fR, \fB\-des3\fR, \fB\-idea\fR" 4 .IX Item "-aes128, -aes192, -aes256, -aria128, -aria192, -aria256, -camellia128, -camellia192, -camellia256, -des, -des3, -idea" These options encrypt the private key with specified cipher before outputting it. A pass phrase is prompted for. If none of these options is specified no encryption is used. .IP "\fB\-rand file...\fR" 4 .IX Item "-rand file..." A file or files containing random data used to seed the random number generator. Multiple files can be specified separated by an OS-dependent character. The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for all others. .IP "[\fB\-writerand file\fR]" 4 .IX Item "[-writerand file]" Writes random data to the specified \fIfile\fR upon exit. This can be used with a subsequent \fB\-rand\fR flag. .IP "\fB\-engine id\fR" 4 .IX Item "-engine id" Specifying an engine (by its unique \fBid\fR string) will cause \fBgendsa\fR to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms. .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" \&\fBdsaparam\fR\|(1), \fBdsa\fR\|(1), \fBgenrsa\fR\|(1), \&\fBrsa\fR\|(1) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2000\-2018 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.
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