Team tanc

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Overall Objectives
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Inria / Raweb 2004
Project: tanc

Project : tanc

Section: Overall Objectives


Overall Objectives

TANC is located in the Laboratoire d'Informatique de l'École polytechnique (LIX).

The aim of the TANC project is to promote the study, implementation and use of robust and verifyable asymmetric cryptosystems based on algorithmic number theory.

It is clear from this sentence that we combine high-level mathematics and efficient programming. Our main area of competence and interest is that of algebraic curves over finite fields, most notably the computational aspects of these objects, that appear as a substitute of good old fashioned cryptography based on modular arithmetic. One of the reasons for this change appears to be the key-size that is smaller for an equivalent security. We participate in the recent bio-diversity mood that tries to find substitutes for RSA, in case some attack would appear and destroy the products that employ it.

Whenever possible, we produce certificates (proofs) of validity for the objects and systems we build. For instance, an elliptic curve has many invariants, and their values need to be proved, since they may be difficult to compute.

Our research area comprises:


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