OpenSSL

Cryptography and SSL/TLS Toolkit

openssl-passwd

NAME

openssl-passwd - compute password hashes

SYNOPSIS

openssl passwd [-help] [-1] [-apr1] [-aixmd5] [-5] [-6] [-salt string] [-in file] [-stdin] [-noverify] [-quiet] [-table] [-reverse] [-rand files] [-writerand file] [-provider name] [-provider-path path] [-propquery propq] [password]

DESCRIPTION

This 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 -in, from stdin for option -stdin, or from the command line, or from the terminal otherwise. The MD5-based BSD password algorithm -1, its Apache variant -apr1, and its AIX variant are available.

OPTIONS

-help

Print out a usage message.

-1

Use the MD5 based BSD password algorithm 1 (default).

-apr1

Use the apr1 algorithm (Apache variant of the BSD algorithm).

-aixmd5

Use the AIX MD5 algorithm (AIX variant of the BSD algorithm).

-5
-6

Use the SHA256 / SHA512 based algorithms defined by Ulrich Drepper. See https://www.akkadia.org/drepper/SHA-crypt.txt.

-salt string

Use the specified salt. When reading a password from the terminal, this implies -noverify.

-in file

Read passwords from file.

-stdin

Read passwords from stdin.

-noverify

Don't verify when reading a password from the terminal.

-quiet

Don't output warnings when passwords given at the command line are truncated.

-table

In the output list, prepend the cleartext password and a TAB character to each password hash.

-reverse

When the -table option is used, reverse the order of cleartext and hash.

-rand files, -writerand file

See "Random State Options" in openssl(1) for details.

-provider name
-provider-path path
-propquery propq

See "Provider Options" in openssl(1), provider(7), and property(7).

EXAMPLES

  % 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/

HISTORY

The -crypt option was removed in OpenSSL 3.0.

Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (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 https://www.openssl.org/source/license.html.