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US Patent 7457408 Calculation unit for executing a cryptographic protocol

Patent 7457408 was granted and assigned to Oberthur Technologies on November, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Oberthur Technologies

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74574081

Patent Inventor Names

Erik Knudsen1

Date of Patent

November 25, 2008

Patent Application Number

099786861

Date Filed

October 18, 2001

Patent Primary Examiner

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Matthew Smithers

Patent abstract

A calculation unit in which the inverse of an integer modulo a large number is determined provides a series of binary numbers prime with the large number, divides those numbers into two groups at random, and effects the products of the numbers of each group.