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. 30, 2014
Filed:
Oct. 23, 2009
John S. Baras, Potomac, MD (US);
Paul L. Yu, Silver Spring, MD (US);
Brian M. Sadler, Laurel, MD (US);
John S. Baras, Potomac, MD (US);
Paul L. Yu, Silver Spring, MD (US);
Brian M. Sadler, Laurel, MD (US);
University of Maryland, College Park, College Park, MD (US);
The United States of America as represented by Secretary of the Army, Washington, DC (US);
Abstract
The replacement of secret keys is a central problem in key management. Typical solutions exchange handshaking messages, involve complex computations, or require the cooperation of trusted third parties. Disclosed herein is a key replacement method that exploits the randomness of Markov models to efficiently provide fresh keys to users. Unlike other methods, the proposed method removes the need for extra communications, intensive computation, or third parties. It is demonstrated that the proposed method has perfect forward secrecy as well as resistance to known-key attacks.