How to obscure a password

[Batista, Facundo]

I'm doing a small program, in which the user will have the option to enter
his/her password everytime, or just save it (to a file).

So, is there a module to obscure the password text in a secure way?

I can't hash it (with md5 or something), because I not need to compare the
password the user enters with a previous one.

I need to restore the password later and use it as if the user just entered
it.

Thank you all!

Facundo Batista
Gestión de Red
fbatista at unifon.com.ar
(54 11) 5130-4643
Cel: 15 5132 0132