[Pharo-project] How to encrypt a password?

Hi guys. I need to be able to store a password as part of a method. Say I need to be able to do 'thisIsMyPassword' encrypted -> 'dasdafjewrhjk34wh5435345345345ewfsfs' Then I can write the method: MyClass >> myPassword ^ 'dasdafjewrhjk34wh5435345345345ewfsfs' decrypted It should have a kind of public key somehow so that someone cannot easily decrypt it. How can I do that in Pharo? I am totally newbie with all this stuff. Thanks, -- Mariano http://marianopeck.wordpress.com