| =pod |
| |
| =head1 NAME |
| |
| openssl-passwd, |
| passwd - compute password hashes |
| |
| =head1 SYNOPSIS |
| |
| B<openssl passwd> |
| [B<-help>] |
| [B<-crypt>] |
| [B<-1>] |
| [B<-apr1>] |
| [B<-aixmd5>] |
| [B<-5>] |
| [B<-6>] |
| [B<-salt> I<string>] |
| [B<-in> I<file>] |
| [B<-stdin>] |
| [B<-noverify>] |
| [B<-quiet>] |
| [B<-table>] |
| [B<-rand file...>] |
| [B<-writerand file>] |
| {I<password>} |
| |
| =head1 DESCRIPTION |
| |
| The B<passwd> 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 B<-in file>, from stdin for |
| option B<-stdin>, or from the command line, or from the terminal otherwise. |
| |
| =head1 OPTIONS |
| |
| =over 4 |
| |
| =item B<-help> |
| |
| Print out a usage message. |
| |
| =item B<-crypt> |
| |
| Use the B<crypt> algorithm (default). |
| |
| =item B<-1> |
| |
| Use the MD5 based BSD password algorithm B<1>. |
| |
| =item B<-apr1> |
| |
| Use the B<apr1> algorithm (Apache variant of the BSD algorithm). |
| |
| =item B<-aixmd5> |
| |
| Use the B<AIX MD5> algorithm (AIX variant of the BSD algorithm). |
| |
| =item B<-5> |
| |
| =item B<-6> |
| |
| Use the B<SHA256> / B<SHA512> based algorithms defined by Ulrich Drepper. |
| See L<https://www.akkadia.org/drepper/SHA-crypt.txt>. |
| |
| =item B<-salt> I<string> |
| |
| Use the specified salt. |
| When reading a password from the terminal, this implies B<-noverify>. |
| |
| =item B<-in> I<file> |
| |
| Read passwords from I<file>. |
| |
| =item B<-stdin> |
| |
| Read passwords from B<stdin>. |
| |
| =item B<-noverify> |
| |
| Don't verify when reading a password from the terminal. |
| |
| =item B<-quiet> |
| |
| Don't output warnings when passwords given at the command line are truncated. |
| |
| =item B<-table> |
| |
| In the output list, prepend the cleartext password and a TAB character |
| to each password hash. |
| |
| =item B<-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 B<;> for MS-Windows, B<,> for OpenVMS, and B<:> for |
| all others. |
| |
| =item [B<-writerand file>] |
| |
| Writes random data to the specified I<file> upon exit. |
| This can be used with a subsequent B<-rand> flag. |
| |
| =back |
| |
| =head1 EXAMPLES |
| |
| % 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/ |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved. |
| |
| Licensed under the OpenSSL license (the "License"). You may not use |
| this file except in compliance with the License. You can obtain a copy |
| in the file LICENSE in the source distribution or at |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |
