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:
Jun. 11, 2002
Filed:
Apr. 08, 1998
Arjen K. Lenstra, Basking Ridge, NJ (US);
Citibank, NA, New York, NY (US);
Abstract
Techniques are provided for generation of an RSA modulus having a predetermined portion. The predetermined portion may be the leading digits of the modulus, or split between the leading and trailing digits of the modulus. The resulting RSA modulus has the same security level as conventional RSA moduli, but requires less storage space. Significant performance improvements may be obtained for encryption, decryption, digital signature generation and digital signature verification when using RSA moduli in a specifically chosen format, as the division portion of a modulo operation is accomplished using only multiplication operations, and without using division operations.