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:
Apr. 07, 1998
Filed:
May. 21, 1996
Miklos Ajtai, Los Gatos, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A cryptosystem and cryptographic method are provided for performing tasks such as encoding/decoding, signing messages, and verifying identity. The system and method employ a problem which is difficult to solve in the worst case. Because of the worst-case nature of the problem employed, a system and method according to the invention has advantageous level of security, In a class of preferred embodiments, the difficult problem is one of the recognized difficult problems associated with the mathematical theory of lattices. These problems include finding short vectors and sets of basis vectors from a lattice. Cryptographic protocols are performed, using these problems.