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:
May. 15, 2018
Filed:
Mar. 13, 2016
Cisco Technology, Inc., San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
One embodiment of the invention includes a method, including performing, a symmetric homomorphic encryption of a secret Swith a cryptographic key H as input yielding a homomorphic encryption result S*, sending S* for mathematical combination by at least one device with at least one secret Syielding G*, the device A not having access to S, the at least one device not having access to Sand not having access to H, receiving G*, performing a symmetric homomorphic decryption of data based on G* with H as input yielding a first decrypted output, determining a symmetric cryptographic key KA based on the first decrypted output for secure communication with a first device which is operationally connected to, or includes, a tamper resistant security system including Sand Stherein, securing data using KA yielding secured data, and sending the secured data to the first device.