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:
Oct. 14, 2014
Filed:
Jun. 11, 2008
Applicant:
Boris Asipov, Bellevue, WA (US);
Inventor:
Boris Asipov, Bellevue, WA (US);
Assignee:
Microsoft Corporation, Redmond, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/167 (2006.01); H04L 29/06 (2006.01); H04L 9/32 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0435 (2013.01); H04L 9/32 (2013.01); H04L 2463/041 (2013.01); H04L 9/0631 (2013.01);
Abstract
Techniques are described for performing decryption using a key-specific decryption engine. A message including an encrypted data portion is received. The encrypted data portion is formed by performing a symmetric encryption operation using a symmetric key. The encrypted data portion is decrypted using a key-specific decryption engine which does not use the symmetric key as an input. Also described are techniques for generating the key-specific decryption engine which may be implemented using boolean functions determined for the symmetric key.