The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2011
Filed:
Jan. 25, 2000
Marc Girault, Caen, FR;
Jean-claude Pailles, Epron, FR;
Marc Girault, Caen, FR;
Jean-Claude Pailles, Epron, FR;
Phentam Dire NV, LLC, Dover, DE (US);
Abstract
Authentication and signature process with reduced number of calculations. The process involves a first entity called the 'prover', which possesses a public keyand a secret key s, these keys verify the relation v=s(mod n), whereis an integer called modulus andis a parameter, and a second entity called a 'verifier', which knows the public key. This process implies exchange of information following a “zero-knowledge protocol” between the verifier and the prover and cryptographic calculations on this information, some calculations being carried out “modulo”. The process of the invention is characterised by the fact that the modulusis specific to the prover that communicates this modulus to the verifier.