Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2011-03-08
2011-03-08
Arani, Taghi T (Department: 2438)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C382S100000, C375S240000, C380S029000, C380S028000
Reexamination Certificate
active
07904723
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.
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Chitrapu Prabhakar R.
Reznik Alexander
Shin Sung-Hyuk
Zhang Guodong
Arani Taghi T
InterDigital Technology Corporation
Rahman Mahfuzur
Volpe and Koenig P.C.
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