AUTHENTICATION AND MESSAGE SIGNATURE METHOD USING REDUCED-SIZE COMMITMENTS

摘要

The invention concerns an authentication method using a reduced number of binary units of information content and its corresponding systems. The invention is characterised in that it consists in reducing the number of binary units of information content while controlling the time taken by the entity to be authenticated to reply to the authenticating entity and in imposing that said time be less than a certain value. The security level is maintained. The invention is useful for authenticating processes (of entities, of messages) or for the signature of messages.