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.

Date of Patent:
Mar. 19, 2019

Filed:

Jun. 14, 2016
Applicant:

Nagravision S.a., Cheseaux-sur-Lausanne, CH;

Inventors:

Bernard Benoit, Renens, CH;

Jean-Claude Fournier, Noyal-sur-Vilaine, FR;

Laurent Gauteron, Evian, FR;

Yishan Zhao, Antony, FR;

Francois Fer, Domloup, FR;

Assignee:

NAGRAVISION S.A., Cheseaux-sur-Lausanne, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04W 12/04 (2009.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/306 (2013.01); H04L 9/0816 (2013.01); H04L 9/0838 (2013.01); H04L 63/06 (2013.01); H04L 63/205 (2013.01); H04W 12/04 (2013.01); H04L 2209/80 (2013.01);
Abstract

Disclosed herein are methods and systems for enabling legal-intercept mode for a targeted secure element. In an embodiment, a method includes embedding a first key-negotiation parameter associated with a target client device into an intercept secure encryption element; configuring an encryption-management device to receive the intercept secure encryption element and to receive a second key-negotiation parameter associated with the target client device and obtained from a service-provider system, the encryption-management device configured to embed the second key-negotiation parameter into the intercept secure encryption element; and providing the intercept secure encryption element to a communications-intercept system configured to obtain intercepted messages associated with the target client device, the intercepted messages comprising session-key-negotiation messages and associated data messages encrypted with a corresponding negotiated session key, wherein the intercept secure encryption element is configured to (i) identify the negotiated session key based on the session-key-negotiation messages and the first and second key-negotiation parameters and (ii) decrypt the data messages with the negotiated session key.


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