The first one is to fight for a complete freedom of use of cryptology all over the world. For this, in order to defeat Big Brother's listening, I give some algorithms which are proven to resist to any attack.

The second one is to provide tools for using cryptology as a mean of improving our society. Namely, I am convinced that cryptology is the right mean to avoid laundering of money. This is in this context that I explain how to design a smart card that does not need any secret within its chip.