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:
Apr. 21, 2020
Filed:
Apr. 17, 2017
Netscout Systems, Inc, Westford, MA (US);
Tauras Liubinskas, Wilmore, KY (US);
Abhishek Saraswati, Santa Clara, CA (US);
Subappriya Muthuchamy, Fremont, CA (US);
Apurva Prakash, Bangalore, IN;
Sandeep Prasad, San Jose, CA (US);
Netscout Systems, Inc., Westford, MA (US);
Abstract
First and second pluralities of packets transmitted between UE and the USN over a first interface and a second interface are continuously captured. The first, second and third pluralities contains temporary and permanent identifying information and ciphering key information. A fourth plurality of packets transmitted between the USN and a HSS over a fourth interface is captured. The temporary, permanent identifying information and the ciphering key information are correlated to determine mappings stored in a data repository. A fifth plurality transmitted over a fifth interface is continuously captured. Permanent identifying information corresponding to the temporary identifying information retrieved from the unciphered packets of the fifth plurality is retrieved from the data repository based on the stored mappings. NAS deciphering key information corresponding to the retrieved permanent identifying information is retrieved. The ciphered packets of the fifth plurality of packets are deciphered based on the retrieved NAS deciphering key information.