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. 02, 2001
Filed:
Dec. 17, 1996
Applicant:
Inventors:
Kenneth Lerner, Boca Raton, FL (US);
John Burgan, Palm Beach, FL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 ;
U.S. Cl.
CPC ...
H04L 9/00 ;
Abstract
A dynamic private key security system for personal messaging devices (,) includes a paging terminal (,). The paging terminal (,) has a terminal cryptographic engine (,) that generates an encrypted message using a terminal session key based on a first information content of a prior message, and generates a next message key based on a second information content of a current message. The terminal session key is used to encrypt the current message, and the next message key is used to encrypt a next message.