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Top Forums Shell Programming and Scripting Issues Masking(Encrypting) a string Post 302982992 by RudiC on Wednesday 5th of October 2016 11:51:31 AM
Old 10-05-2016
Isn't that exactly what you want to do - encrypt some clear text into something unreadable to the world that can be retrieved only if the password is known? Don't copy and paste the result; save it in a file immediately. That file can be decrypted by applying crypt "tom" again.

Warning (from man crypt):
Quote:
The DES algorithm itself has a few quirks which make the use of the crypt() interface a very poor choice for anything other than password authentication. If you are
planning on using the crypt() interface for a cryptography project, don't do it: get a good book on encryption and one of the widely available DES libraries.
 

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