gendsa.1 7.0 KB

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  133. .\" ========================================================================
  134. .\"
  135. .IX Title "GENDSA 1"
  136. .TH GENDSA 1 "2022-03-15" "1.1.1n" "OpenSSL"
  137. .\" For nroff, turn off justification. Always turn off hyphenation; it makes
  138. .\" way too many mistakes in technical documents.
  139. .if n .ad l
  140. .nh
  141. .SH "NAME"
  142. openssl\-gendsa, gendsa \- generate a DSA private key from a set of parameters
  143. .SH "SYNOPSIS"
  144. .IX Header "SYNOPSIS"
  145. \&\fBopenssl\fR \fBgendsa\fR
  146. [\fB\-help\fR]
  147. [\fB\-out filename\fR]
  148. [\fB\-aes128\fR]
  149. [\fB\-aes192\fR]
  150. [\fB\-aes256\fR]
  151. [\fB\-aria128\fR]
  152. [\fB\-aria192\fR]
  153. [\fB\-aria256\fR]
  154. [\fB\-camellia128\fR]
  155. [\fB\-camellia192\fR]
  156. [\fB\-camellia256\fR]
  157. [\fB\-des\fR]
  158. [\fB\-des3\fR]
  159. [\fB\-idea\fR]
  160. [\fB\-rand file...\fR]
  161. [\fB\-writerand file\fR]
  162. [\fB\-engine id\fR]
  163. [\fBparamfile\fR]
  164. .SH "DESCRIPTION"
  165. .IX Header "DESCRIPTION"
  166. The \fBgendsa\fR command generates a \s-1DSA\s0 private key from a \s-1DSA\s0 parameter file
  167. (which will be typically generated by the \fBopenssl dsaparam\fR command).
  168. .SH "OPTIONS"
  169. .IX Header "OPTIONS"
  170. .IP "\fB\-help\fR" 4
  171. .IX Item "-help"
  172. Print out a usage message.
  173. .IP "\fB\-out filename\fR" 4
  174. .IX Item "-out filename"
  175. Output the key to the specified file. If this argument is not specified then
  176. standard output is used.
  177. .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
  178. .IX Item "-aes128, -aes192, -aes256, -aria128, -aria192, -aria256, -camellia128, -camellia192, -camellia256, -des, -des3, -idea"
  179. These options encrypt the private key with specified
  180. cipher before outputting it. A pass phrase is prompted for.
  181. If none of these options is specified no encryption is used.
  182. .IP "\fB\-rand file...\fR" 4
  183. .IX Item "-rand file..."
  184. A file or files containing random data used to seed the random number
  185. generator.
  186. Multiple files can be specified separated by an OS-dependent character.
  187. The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
  188. all others.
  189. .IP "[\fB\-writerand file\fR]" 4
  190. .IX Item "[-writerand file]"
  191. Writes random data to the specified \fIfile\fR upon exit.
  192. This can be used with a subsequent \fB\-rand\fR flag.
  193. .IP "\fB\-engine id\fR" 4
  194. .IX Item "-engine id"
  195. Specifying an engine (by its unique \fBid\fR string) will cause \fBgendsa\fR
  196. to attempt to obtain a functional reference to the specified engine,
  197. thus initialising it if needed. The engine will then be set as the default
  198. for all available algorithms.
  199. .IP "\fBparamfile\fR" 4
  200. .IX Item "paramfile"
  201. This option specifies the \s-1DSA\s0 parameter file to use. The parameters in this
  202. file determine the size of the private key. \s-1DSA\s0 parameters can be generated
  203. and examined using the \fBopenssl dsaparam\fR command.
  204. .SH "NOTES"
  205. .IX Header "NOTES"
  206. \&\s-1DSA\s0 key generation is little more than random number generation so it is
  207. much quicker that \s-1RSA\s0 key generation for example.
  208. .SH "SEE ALSO"
  209. .IX Header "SEE ALSO"
  210. \&\fBdsaparam\fR\|(1), \fBdsa\fR\|(1), \fBgenrsa\fR\|(1),
  211. \&\fBrsa\fR\|(1)
  212. .SH "COPYRIGHT"
  213. .IX Header "COPYRIGHT"
  214. Copyright 2000\-2018 The OpenSSL Project Authors. All Rights Reserved.
  215. .PP
  216. Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
  217. this file except in compliance with the License. You can obtain a copy
  218. in the file \s-1LICENSE\s0 in the source distribution or at
  219. <https://www.openssl.org/source/license.html>.