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:
Nov. 17, 1998
Filed:
Aug. 08, 1996
Ravi Ganesan, Arlington, VA (US);
Bell Atlantic Network Services, Inc., Arlington, VA (US);
Abstract
An article of manufacture for effecting secure communications during a communications session between users in a secured communication cryptosystem in which users are each associated with a public crypto-key and a private crypto-key, includes computer readable storage medium having computer programming stored thereon. The stored computer programming is configured to be readable from the computer readable storage medium by a computer and thereby cause the computer to operate so as to generate a private crypto-key using a private exponent and a modulus N, which is the product of a plurality of numbers within a set of large prime numbers. The generated private crypto-key is divided into a private user key portion having a first bit length and a central authority key portion having a second bit length. The first bit length is smaller than the second bit length, and is no larger than fifteen percent of the bit length of the modulus N but no less than 56 bits. The private user key portion is directed only to a single user of the cryptosystem and the central authority's portion is directed to a central storage device.