Security control method and system thereof

Abstract

The present invention discloses a method for safety control and a system thereof. The method of the invention comprises the following steps: when the connection initialization is executed, receiving the safety-mode control information by terminal; alternating the radio resource control entity of terminal with the convergence protocol entity of packet data; collocating and initiating a security process according to a security algorithm carried in the security mode control information, checking the received security mode control information; and returning the response information to the network side. If the security process after key updating is executed, the method comprises the following steps: receiving the security mode control information; obtaining the security algorithm, caching and stopping processing the data, collocating and initiating the security process; and checking the wholeness of received security mode control information according to the security algorithm, and returning to the security mode for controlling the response information. The invention can realize safe startup of system through security control when the system is started.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and system for safety control. Background technique [0002] In order to maintain the long-term competitive advantage of the 3GPP (3rd Generation Partnership Project, third generation mobile communication system) system, the standard formulation work of the long-term evolution system (LTE, Long Team Evolution) is ongoing and developing rapidly. In a mobile communication system, it is very important to ensure the communication security of users. The backward compatibility of the evolved network structure to the existing network is an important indicator. In terms of security, it is required that the user security process in the evolved network must ensure at least the same level of security mechanism as the current 2G system or 3G system. [0003] The core network of the LTE system mainly includes logic functions such as MME (Mobility Management Entity, mobile mana...

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Problems solved by technology

[0006] In the process of research and practice of the prior art, the inventor found that the prior art has at least the following problems: the startup when the connection is initialized, the s

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