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Full Discussion: Encrypt and decrypt a string
Top Forums Shell Programming and Scripting Encrypt and decrypt a string Post 302505452 by Corona688 on Thursday 17th of March 2011 02:31:46 AM
Old 03-17-2011
Encrypting a password is useless when you can't keep it encrypted. The instant you decrypt it, it's vulnerable again.

No matter how cryptographically hard they are, the encryption and decryption methods are right there for anyone to see and copy-paste anyway. That just makes it sillier.

chmod will be a much better defense against snooping than a rube goldberg machine, but with some work you might be able to avoid using stored passwords at all, which would be a very good thing. Because:

Retrievably stored passwords are security hot potatoes and to be avoided. They're such a bad idea that sudo, su, ssh, scp, and sftp don't just avoid them, they're all specifically designed to stop you from using them too. You have to use third-party brute-forcing tools like expect to shoehorn stored passwords into them at all. A stored password is an absolute last resort.
Last edited by Corona688; 03-17-2011 at 03:39 AM..
 

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LEARN ABOUT CENTOS

seahorse-tool

seahorse-tool(1)						       GNOME							  seahorse-tool(1)

NAME

       seahorse-tool - PGP/GnuPG file encryption for the GNOME Desktop

SYNOPSIS

       seahorse-tool [ OPTION... ]

DESCRIPTION

       Seahorse is a GNOME application for managing encryption keys.  seahorse-tool allows you to encrypt, decrypt or sign files. It is integrated
       into the nautilus right-click menu, but can also be used from the command line.

OPTIONS

   Help options
       -?, --help
	      Show summary of all options and exit.

       --usage
	      Display brief usage message and exit.

   Application options
       -i FILE, --import FILE
	      Import keys from the FILE.

       -e FILE, --encrypt FILE
	      Encrypt FILE.

       -s FILE, --sign FILE
	      Sign FILE with default key.

       -n FILE, --encrypt-sign FILE
	      Encrypt and sign FILE with default key.

       -d FILE, --decrypt FILE
	      Decrypt encrypted FILE.

       -v FILE, --verify FILE
	      Verify signature FILE.

       -T, --uri-list
	      Read list of URIs on standard in.

       --version
	      Show version information and exit.

       -h, --help
	      Show help options.

   Additional options
       In addition, the usual GTK+ and GNOME command line options apply. See the output of --help for details.

VERSION

       This man page describes seahorse version 0.9.

BUGS

       If you find a bug, please report it at
	http://bugzilla.gnome.org/enter_bug.cgi?product=seahorse.

AUTHORS

       Jacob Perkins <jap1@users.sourceforge.net>

       Stef Walter <stef@memberwebs.com>

       Adam Schreiber <sadam@clemson.edu>

       This man page was originally written by Michael Mende <debian@menole.net> for the Debian system.

COPYRIGHT

       Copyright (C) 2001, 2002 Jose Carlos Garcia Sogo
       Copyright (C) 2002, 2003 Jacob Perkins
       Copyright (C) 2004, 2006 Stef Walter, Adam Schreiber

LICENSE

       You are free to distribute this software under the terms of the GNU General Public License.
       Documentation and help files are covered by GFDL license.

SEE ALSO

       seahorse-daemon(1),

seahorse							   May 04, 2006 						  seahorse-tool(1)
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