03-21-2011
AIX stores it's encrypted passwords in /etc/security/password. I've migrated from AIX to RHEL a number of times, and spent some time looking into migrating passwords. I'm sure that the algorithm used in AIX is reversible, and that the one used in RHEL isn't. I don't think it's possible to migrate users with their passwords between the two.
Rich
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LEARN ABOUT OSX
openssl-passwd
PASSWD(1SSL) OpenSSL PASSWD(1SSL)
NAME
openssl-passwd, passwd - compute password hashes
SYNOPSIS
openssl passwd [-help] [-crypt] [-1] [-apr1] [-aixmd5] [-5] [-6] [-salt string] [-in file] [-stdin] [-noverify] [-quiet] [-table] [-rand
file...] [-writerand file] {password}
DESCRIPTION
The 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 -in file, from stdin for option -stdin, or from the command line, or from the terminal otherwise. The Unix
standard algorithm crypt and the MD5-based BSD password algorithm 1, its Apache variant apr1, and its AIX variant are available.
OPTIONS
-help
Print out a usage message.
-crypt
Use the crypt algorithm (default).
-1 Use the MD5 based BSD password algorithm 1.
-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.
-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 ; for MS-Windows, , for OpenVMS, and : for all others.
[-writerand file]
Writes random data to the specified file upon exit. This can be used with a subsequent -rand flag.
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/
COPYRIGHT
Copyright 2000-2018 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 <https://www.openssl.org/source/license.html>.
1.1.1a 2018-12-18 PASSWD(1SSL)