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Method and system for securing wireless communications

A wireless communication system and wireless communication technology, applied in the field of wireless communication systems, can solve problems such as easy attack and low speed

Inactive Publication Date: 2012-11-14
INTERDIGITAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct use of such bits (e.g. via one-time pads) for ciphers results in very low rate data because no more than one bit of data per secret bit can be supported, or is easily attacked (e.g. frequency attack).

Method used

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  • Method and system for securing wireless communications
  • Method and system for securing wireless communications
  • Method and system for securing wireless communications

Examples

Experimental program
Comparison scheme
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Embodiment

[0082] 1. A method for securing wireless communication is provided in a wireless communication system comprising a Wireless Transmit / Receive Unit (WTRU) and a Serving Network (SN), the method comprising:

[0083] (a) the WTRU and the Node-B perform a joint randomness not shared by others (JRNSO) measurement to generate JRNSO bits based on the channel impulse response (CIR) evaluation between the WTRU and the Node-B;

[0084] (b) the WTRU and Node B perform an adjustment procedure to generate common JRNSO bits;

[0085] (c) Node B sends common JRNSO bit to SN; and

[0086] (d) WTRU and SN protect the session key for security by using common JRNSO bits.

[0087] 2. The method as described in embodiment 1, further comprising:

[0088] The WTRU and SN disclose whether the WTRU and SN are JRNSO capable, wherein if both the WTRU and SN are JRNSO capable, perform JRNSO measurements.

[0089] 3. The method of embodiment 2, wherein JRNSO capabilities are disclosed during a radio res...

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Abstract

A wireless transmit / receive unit (WTRU) and a Node B, respectively, perform joint randomness not shared by others (JRNSO) measurement to generate JRNSO bits based on a channel estimate between the WTRU and the Node B. The WTRU and the Node B then perform a reconciliation procedure to generate a common JRNSO bits. The Node B sends the common JRNSO bits to a serving network. The WTRU and the SN secure a session key (such as an integrity key, a cipher key and an anonymity key), using the common JRNSO bits. The JRNSO measurements are performed on an on-going basis, and the session key is updated using a new set of common JRNSO bits. The JRNSO bits may be expanded by using a pseudorandom number generator (PNG) or a windowing technique. A handover may be intentionally induced to increase the JRNSO bits generation rate.

Description

technical field [0001] The present invention relates to wireless communication systems. More specifically, the present invention relates to a method and system for securing wireless communications. Background technique [0002] The Universal Mobile Telecommunications System (UMTS) is one of the main standards for wireless communication systems. For communication security, UMTS uses Authentication and Key Agreement (AKA) protocol. The AKA is based on the Global System for Mobile Communications (GSM) security architecture and represents a significant improvement over it. Whereas the authentication process in GSM is a way of authenticating only the client, UMTS requires mutual authentication of both the client and the network. False base station attacks, which are vulnerable to GSM protocol attacks, are largely, if not completely, eliminated by the UMTS AKA protocol. [0003] AKA assumes the existence of a long-term shared key K between the Universal Subscriber Identity Mod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/22H04K1/00H04L29/06G06F21/31G06F21/44
CPCH04W12/04H04W12/02H04L9/08H04L63/061H04L9/0891H04W80/02H04L9/0875H04L2209/80H04L63/083H04W12/03H04W12/041H04L63/0823
Inventor L·J·古乔内I·乍A·列兹尼克C·叶R·拉沙
Owner INTERDIGITAL TECH CORP