Research And Implementation Of Special Security Module For Mobile Communication

At present,mobile communications have entered an era of rapid development,and mobile terminals have become more and more widely used in society.At the same time,they are facing more and more security issues such as information leakage and identity counterfeiting,and various sectors have proposed different countermeasures.This article will start with the development of the mobile terminal security communication module,analyze the various methods currently applied to mobile terminal security protection,and then propose the architecture of the security communication system based on this,and finally focus on the research and development of the security communication module.In order to achieve the balance between the security and performance of the security module,the software and hardware architecture will be optimized and the corresponding modules will be implemented finally.The work done in this article mainly includes the following parts:(1)In view of the current security issues faced by mobile communications,a corresponding secure communications system architecture is proposed.The system mainly relies on the implementation of VPDN and IPSec security protocols.The system mainly includes mobile security terminals,cryptographic machines,application servers,and management centers.The mobile security terminal first negotiates a key with a cryptographic machine through the mobile communication network to establish a secure communication tunnel.After that,the mobile terminal can communicate securely with the application server.This solution uses a virtual dial-up private network as the carrier and can rely on current operations.The mobile communication network of the merchant is relatively easy to realize at a low cost.(2)Analyzed the current general mobile security terminal architecture,and carried out the hardware architecture design of the security module.The security module in this paper adopts a hardware architecture with CPU+FPGA as the core.The CPU is responsible for the key negotiation with complex functions,and the FPGA is responsible for data encryption and decryption,which can greatly reduce the number of transmissions of application data within the security module and increase the data processing rate.(3)Carrying out the software development of the security module,mainly designed and developed the main control management module,key agreement module,FPGA function realization,CPU and FPGA interface,and inter-process communication of each module,and finally realized the security module Security tunnel establishment,data encryption,and other functions.