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:
Sep. 12, 2000
Filed:
Oct. 09, 1996
Applicant:
Inventors:
Douglas B Boyle, Palo Alto, CA (US);
Michael D Rostoker, Boulder Creek, CA (US);
Assignee:
LSI Logic Corp., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ; H04L / ;
U.S. Cl.
CPC ...
380201 ; 380200 ; 713182 ; 713189 ; 713193 ; 713200 ; 713201 ; 345202 ; 36471502 ; 382166 ; 382232 ;
Abstract
A subscriber station for decrypting and decompressing data is provided on a single chip. The chip includes a DES decryption unit for performing decryption of incoming data with a DES key, a public key decryption unit for decrypting the DES key, a general purpose microprocessor for performing decompression, and a Secure Buffer for protecting the decrypted data prior to decompression. The chip includes an embedded key for the public key decryption unit and a bus for providing a data communication path between the microprocessor and the decryption units.