Method and system for accessing control terminal after being losing to obtain data summary calculation parameter

Abstract

The present invention discloses a control terminal access method, which is used after the data extract calculation parameters have a failure, and a system thereof, which are used in a network. The network comprises a network-side authority authenticator, a base station and a terminal which is arranged in the service area of the base station. The access request transmission module on the terminal transmits the access request to the base station; the calculation parameter extraction module on the base station requests the authority authenticator for the data extract calculation parameters of the system management information of the terminal in the network side, according to the received access request, and then informs the access control module of the acquired results; the abnormal circumstance processing mode configuration module stores the processing mode of abnormal circumstance of the system; when the base station has a failure in acquiring the calculation parameters from the authority authenticator, the access control module on the base station decides whether the terminal should be connected, according to the processing mode of the abnormal circumstance, which is stored in theabnormal circumstance processing mode configuration module. The method improves the performance of the system to process the abnormal processes, and prevents the waste of system resources and access time.

Description

technical field [0001] The present invention relates to the control of terminal access under the security function in a WiMAX (Worldwide Interoperability for Microwave Access) network, and in particular to a method and method for controlling terminal access in a WiMAX network after failing to obtain data summary calculation parameters system. Background technique [0002] The protection of the management message in IEEE802.16e is accomplished by the verification of the data summary. The data digest is to use a certain one-way encryption algorithm to encrypt a message of any length to generate a fixed-length ciphertext. This ciphertext is called a data digest or a message digest. The data digest is a value that uniquely corresponds to a piece of data. Its so-called one-way means that it cannot be decrypted. Different data has different digests, and the same data has the same digest, so the digest becomes the "fingerprint" of the data to verify whether the message is "real"....

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Problems solved by technology

However, the agreement does not give how to deal with the situation where the base station (BS) fails to request CMAC_Key_Count from the authenticator (Authenticator)

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