US 8,621,225 B2 · Method and apparatus for enhancing security of wireless communications

Abstract

The present invention is related to a method and apparatus for enhancing security of communications. The apparatus comprises a security processing unit, a data processing unit, a cross-layer watermarking unit, and optionally a smart antenna processor. The security processing unit generates a token/key to be used in watermarking and sends a node security policy to other components. The data processing unit generates user data. The cross-layer watermarking unit includes at least one of Layer-2/3, Layer-1 and Layer-0. Each layer performs a different scheme or degree of watermarking. The cross-layer watermarking unit embeds the token/key into the user data transmission on at least one of the layers selectively in accordance with a security policy.

Claims5

Dependent claims

A transmitter for transmitting information in accordance with a security policy, the transmitter comprising:

a content watermarking unit configured to perform initial watermarking of user data, which produces a content watermarked message;
a higher layer processing unit configured to perform higher layer processing of the initial watermarked user data;
a transport watermarking unit configured to transmit watermarked user data, and embed a token or key or both into user data transmission, the transport watermarking unit comprising at least one sub-layer watermarking unit;
and
a cross layer watermarking distributor configured to adaptively allocate and distribute the content watermarked message to the at least one sub-layer watermarking unit based on system parameters.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/043,095Filed 8 Mar 2011 · continuation

Priority

12 Jan 2005

Published

US 2011/0161673 A130 Jun 2011

Granted

31 Dec 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04L 63/123
Applying verification of the received information: received data contents, e.g. message integrity
H04W 12/033
Protecting confidentiality, e.g. by encryption: of the user plane, e.g. user's traffic
H04W 12/10
Security arrangements; Authentication; Protecting privacy or anonymity: integrity
G10L 19/018
Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals,…:…

Family

Application60/643,221Us provisional application · filed 12 Jan 2005

Application11/192,918Parent of this continuation · filed 29 Jul 2005

US 2011/0161673 A1Pre-grant publication · published 30 Jun 2011

US 7,904,723 B2Parent of this continuation

US 2006/0156009 A1Published application

US 8,621,225 B2This patent

From the US filing history. Foreign family members aren’t listed.

Method and apparatus for enhancing security of wireless communications

Life of this patent

Method and apparatus for enhancing security of wireless communications

Life of this patent

Abstract

Claims5