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Top Forums Shell Programming and Scripting Best way to hide password in bash script? Post 302413453 by dukevn on Thursday 15th of April 2010 08:04:34 PM
Old 04-15-2010
Quote:
Originally Posted by jim mcnamara
One other point - this kind of thing is such a common question that you may as well be directed to a FAQ about UNIX passwords:
Unix Programming Frequently Asked Questions - 4. System Information You want section 4.2 Passwords

... to make your life easier consider reading all of the FAQ pages.
Thanks Jim. At first I thought of doing something similar to that: write a code to decode (my own algorithm or any available tools) the encrypted password. But then at last the naked password will still be passed to ssh as parameter, hence will be shown through ps output. It looks like fooling ps is the only way to do this.

Bests,

D.
 

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passwd(1openssl)						      OpenSSL							  passwd(1openssl)

NAME
passwd - compute password hashes SYNOPSIS
openssl passwd [-crypt] [-1] [-apr1] [-salt string] [-in file] [-stdin] [-noverify] [-quiet] [-table] {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 and its Apache variant apr1 are available. OPTIONS
-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). -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. EXAMPLES
openssl passwd -crypt -salt xx password prints xxj31ZMTZzkVA. openssl passwd -1 -salt xxxxxxxx password prints $1$xxxxxxxx$UYCIxa628.9qXjpQCjM4a.. openssl passwd -apr1 -salt xxxxxxxx password prints $apr1$xxxxxxxx$dxHfLAsjHkDRmG83UXe8K0. OpenSSL-0.9.8 Oct 11 2005 passwd(1openssl)
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