From: "Iñaki Baz Castillo" <ibc@...>
Date: 2009-02-06T04:52:48+09:00
Subject: Re: Best way to encrypt/decrypt a word

El Jueves, 5 de Febrero de 2009, Ruby Student escribió:
> Hello Team,
>
> I have the need to encrypt/decrypt a one word string. The encrypted word
> will be saved in a file.
> Later the word will be picked-up from the file, decrypt it at execution
> time, and use it as a UNIX password to perform certain function that
> requires authentication.
> What Ruby facility is available for this simple function?

The problem is:
Even if the UNIX password is encrypted by the Ruby programm, if an attacker 
can see the Ruby code it can know how to decrypt it.


-- 
Iñaki Baz Castillo