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Method for ensuring the compatible integrity parameters from both the receiving and sending parties

A technology of integrity and parameters, which is applied in the field of ensuring the consistency of integrity parameters of both sending and receiving, and can solve problems such as data packet discarding, failure to pass integrity verification, and poor wireless signal quality

Active Publication Date: 2010-01-13
DATANG MOBILE COMM EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0011] To sum up, according to the existing 3GPP protocol, due to the poor quality of the underlying wireless signal, the RLC layer needs to retransmit or discard the data packet, which will cause the integrity parameter of the Uu interface message to be lost when the MSN of the RRC message arrives in reverse order. Consistency, failed integrity verification

Method used

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  • Method for ensuring the compatible integrity parameters from both the receiving and sending parties
  • Method for ensuring the compatible integrity parameters from both the receiving and sending parties
  • Method for ensuring the compatible integrity parameters from both the receiving and sending parties

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Embodiment Construction

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] In the present invention, a flag amount is set for two consecutive rounds of messages at the receiver to mark whether the messages corresponding to MSNs in the two rounds are received, and each message corresponds to a flag bit; each time the receiver receives a message, The reception flag is set on the flag bit corresponding to the MSN of the message. When all the messages in one round are received, that is, when the flag bits corresponding to the first round of messages are all set, the HFN is incremented by 1. In this way, No matter whether it arrives in reverse order or not, it will not cause the receiver's HFN misjudgment. If a round has not been collected, but some messages of the next round have been received, then (HFN+1) is used to perform an in...

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Abstract

The disclosed method for ensuring parameter consistent for both sides comprises: A. the receive side sets mark continually for two stage message to mark whether has been received every message during two stages; and B. the receive side sets the relative mark when receiving one piece message till setting all marks, adds one to HFN value; if receiving the second stage message before complete receiving the message of first stage, adds no to HFN.

Description

technical field [0001] The invention relates to the technical field of secure communication in communication systems, in particular to a method for ensuring the consistency of integrity parameters of dual transmission and reception. Background technique [0002] With the development of mobile communication technology, the confidentiality and security of wireless transmission have become the requirements of users, and integrity protection is proposed based on transmission security. Integrity protection means that the sender sends data to the receiver, and after the receiver receives the data, it checks whether the received signaling data has been modified by unauthorized behavior, inserted into data, and sent repeatedly. The sender can also confirm the result obtained by the receiver to prevent attacks from false base stations and improve system security. [0003] Integrity protection is performed at the Radio Resource Control (RRC) sublayer and, like encryption, is used bet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04W12/106
Inventor 赵军钟纾
Owner DATANG MOBILE COMM EQUIP CO LTD
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