Edit File: passwd.1
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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\-passwd, passwd \- compute password hashes .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fBopenssl passwd\fR [\fB\-help\fR] [\fB\-crypt\fR] [\fB\-1\fR] [\fB\-apr1\fR] [\fB\-aixmd5\fR] [\fB\-5\fR] [\fB\-6\fR] [\fB\-salt\fR \fIstring\fR] [\fB\-in\fR \fIfile\fR] [\fB\-stdin\fR] [\fB\-noverify\fR] [\fB\-quiet\fR] [\fB\-table\fR] [\fB\-rand file...\fR] [\fB\-writerand file\fR] {\fIpassword\fR} .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fBpasswd\fR command computes the hash of a password typed at run-time or the hash of each password in a list. The password list is taken from the named file for option \fB\-in file\fR, from stdin for option \fB\-stdin\fR, or from the command line, or from the terminal otherwise. .SH "OPTIONS" .IX Header "OPTIONS" .IP "\fB\-help\fR" 4 .IX Item "-help" Print out a usage message. .IP "\fB\-crypt\fR" 4 .IX Item "-crypt" Use the \fBcrypt\fR algorithm (default). .IP "\fB\-1\fR" 4 .IX Item "-1" Use the \s-1MD5\s0 based \s-1BSD\s0 password algorithm \fB1\fR. .IP "\fB\-apr1\fR" 4 .IX Item "-apr1" Use the \fBapr1\fR algorithm (Apache variant of the \s-1BSD\s0 algorithm). .IP "\fB\-aixmd5\fR" 4 .IX Item "-aixmd5" Use the \fB\s-1AIX MD5\s0\fR algorithm (\s-1AIX\s0 variant of the \s-1BSD\s0 algorithm). .IP "\fB\-5\fR" 4 .IX Item "-5" .PD 0 .IP "\fB\-6\fR" 4 .IX Item "-6" .PD Use the \fB\s-1SHA256\s0\fR / \fB\s-1SHA512\s0\fR based algorithms defined by Ulrich Drepper. See <https://www.akkadia.org/drepper/SHA\-crypt.txt>. .IP "\fB\-salt\fR \fIstring\fR" 4 .IX Item "-salt string" Use the specified salt. When reading a password from the terminal, this implies \fB\-noverify\fR. .IP "\fB\-in\fR \fIfile\fR" 4 .IX Item "-in file" Read passwords from \fIfile\fR. .IP "\fB\-stdin\fR" 4 .IX Item "-stdin" Read passwords from \fBstdin\fR. .IP "\fB\-noverify\fR" 4 .IX Item "-noverify" Don't verify when reading a password from the terminal. .IP "\fB\-quiet\fR" 4 .IX Item "-quiet" Don't output warnings when passwords given at the command line are truncated. .IP "\fB\-table\fR" 4 .IX Item "-table" In the output list, prepend the cleartext password and a \s-1TAB\s0 character to each password hash. .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. .SH "EXAMPLES" .IX Header "EXAMPLES" .Vb 2 \& % openssl passwd \-crypt \-salt xx password \& xxj31ZMTZzkVA \& \& % openssl passwd \-1 \-salt xxxxxxxx password \& $1$xxxxxxxx$UYCIxa628.9qXjpQCjM4a. \& \& % openssl passwd \-apr1 \-salt xxxxxxxx password \& $apr1$xxxxxxxx$dxHfLAsjHkDRmG83UXe8K0 \& \& % openssl passwd \-aixmd5 \-salt xxxxxxxx password \& xxxxxxxx$8Oaipk/GPKhC64w/YVeFD/ .Ve .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2000\-2021 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>.