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136 .TH PASSWD 1 "2021-08-24" "1.1.1l" "OpenSSL"
137 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
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142 openssl\-passwd, passwd \- compute password hashes
144 .IX Header "SYNOPSIS"
145 \&\fBopenssl passwd\fR
153 [\fB\-salt\fR \fIstring\fR]
154 [\fB\-in\fR \fIfile\fR]
159 [\fB\-rand file...\fR]
160 [\fB\-writerand file\fR]
163 .IX Header "DESCRIPTION"
164 The \fBpasswd\fR command computes the hash of a password typed at
165 run-time or the hash of each password in a list. The password list is
166 taken from the named file for option \fB\-in file\fR, from stdin for
167 option \fB\-stdin\fR, or from the command line, or from the terminal otherwise.
168 The Unix standard algorithm \fBcrypt\fR and the MD5\-based \s-1BSD\s0 password
169 algorithm \fB1\fR, its Apache variant \fBapr1\fR, and its \s-1AIX\s0 variant are available.
174 Print out a usage message.
175 .IP "\fB\-crypt\fR" 4
177 Use the \fBcrypt\fR algorithm (default).
180 Use the \s-1MD5\s0 based \s-1BSD\s0 password algorithm \fB1\fR.
183 Use the \fBapr1\fR algorithm (Apache variant of the \s-1BSD\s0 algorithm).
184 .IP "\fB\-aixmd5\fR" 4
186 Use the \fB\s-1AIX MD5\s0\fR algorithm (\s-1AIX\s0 variant of the \s-1BSD\s0 algorithm).
193 Use the \fB\s-1SHA256\s0\fR / \fB\s-1SHA512\s0\fR based algorithms defined by Ulrich Drepper.
194 See <https://www.akkadia.org/drepper/SHA\-crypt.txt>.
195 .IP "\fB\-salt\fR \fIstring\fR" 4
196 .IX Item "-salt string"
197 Use the specified salt.
198 When reading a password from the terminal, this implies \fB\-noverify\fR.
199 .IP "\fB\-in\fR \fIfile\fR" 4
201 Read passwords from \fIfile\fR.
202 .IP "\fB\-stdin\fR" 4
204 Read passwords from \fBstdin\fR.
205 .IP "\fB\-noverify\fR" 4
207 Don't verify when reading a password from the terminal.
208 .IP "\fB\-quiet\fR" 4
210 Don't output warnings when passwords given at the command line are truncated.
211 .IP "\fB\-table\fR" 4
213 In the output list, prepend the cleartext password and a \s-1TAB\s0 character
214 to each password hash.
215 .IP "\fB\-rand file...\fR" 4
216 .IX Item "-rand file..."
217 A file or files containing random data used to seed the random number
219 Multiple files can be specified separated by an OS-dependent character.
220 The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
222 .IP "[\fB\-writerand file\fR]" 4
223 .IX Item "[-writerand file]"
224 Writes random data to the specified \fIfile\fR upon exit.
225 This can be used with a subsequent \fB\-rand\fR flag.
227 .IX Header "EXAMPLES"
229 \& % openssl passwd \-crypt \-salt xx password
232 \& % openssl passwd \-1 \-salt xxxxxxxx password
233 \& $1$xxxxxxxx$UYCIxa628.9qXjpQCjM4a.
235 \& % openssl passwd \-apr1 \-salt xxxxxxxx password
236 \& $apr1$xxxxxxxx$dxHfLAsjHkDRmG83UXe8K0
238 \& % openssl passwd \-aixmd5 \-salt xxxxxxxx password
239 \& xxxxxxxx$8Oaipk/GPKhC64w/YVeFD/
242 .IX Header "COPYRIGHT"
243 Copyright 2000\-2018 The OpenSSL Project Authors. All Rights Reserved.
245 Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
246 this file except in compliance with the License. You can obtain a copy
247 in the file \s-1LICENSE\s0 in the source distribution or at
248 <https://www.openssl.org/source/license.html>.