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:
Jan. 07, 2014
Filed:
Apr. 30, 2010
Robert John Lambert, Cambridge, CA;
Yuri Poeluev, Waterloo, CA;
Robert John Lambert, Cambridge, CA;
Yuri Poeluev, Waterloo, CA;
Certicom Corp., Mississauga, CA;
Abstract
Techniques are disclosed for utilizing a block Montgomery machine designed only to operate at a fixed block length to perform operations using non-block length (flexible)moduli. In one embodiment, a new modulus n' is obtained having a block length equal to the fixed block length of the Montgomery machine or a multiple thereof. At least one modular additive operation is performed with the new modulus n′, and at least one modular multiplicative operation is performed with the non-block length modulus n. In this way, the result of the at least one additive operation is sufficiently reduced when a carry stems from the additive operation.