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:
Feb. 19, 2013
Filed:
Mar. 22, 2007
David E. Taylor, St. Louis, MO (US);
Ronald S. Indeck, St. Louis, MO (US);
Jason R. White, Manchester, MO (US);
Roger D. Chamberlain, St. Louis, MO (US);
David E. Taylor, St. Louis, MO (US);
Ronald S. Indeck, St. Louis, MO (US);
Jason R. White, Manchester, MO (US);
Roger D. Chamberlain, St. Louis, MO (US);
Exegy Incorporated, St. Louis, MO (US);
Abstract
An encryption technique is disclosed for encrypting a data segment comprising a plurality of data blocks, wherein the security and throughput of the encryption is enhanced by using blockwise independent bit vectors for reversible combination with the data blocks prior to key encryption. Preferably, the blockwise independent bit vectors are derived from a data tag associated with the data segment. Several embodiments are disclosed for generating these blockwise independent bit vectors. In a preferred embodiment, the data tag comprises a logical block address (LBA) for the data segment. Also disclosed herein is a corresponding decryption technique as well as a corresponding symmetrical encryption/decryption technique.