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. 11, 2007
Filed:
Sep. 21, 2000
Applicant:
William T. Jennings, Plano, TX (US);
Inventor:
William T. Jennings, Plano, TX (US);
Assignee:
Raytheon Company, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The storage and retrieval of cryptographic key materials from a storage database utilizes a limited one-way function to create computational barriers. The limited one-way function is asymmetric in nature, in terms of work to compute and work to invert, to store and retrieve encryption keys. The limited one-way function is not intractable, but alternatively, there is some measurable difference in the amount of work required to invert a stored encryption key, compared to the work required for a calculation of the output of the one-way function for storage of an encryption key in a database.