| The security of information transmission is an old and young subject. In ancient times,people used many different ways to pass information such as special bell, drum, fire, andIP Messenger books. To today’s information age, that emerged many other new way ofinformation transmission such as telephone, telegraph, television, Internet and so on. Bornwith these new, old way of transmitting information accompanied by the transmission ofinformation security issues. Information transmission security, in fact, involves computertechnology, network technology, communication, password, and related subjects such aspsychology and sociology or technology, however, the rapid expansion in the mobileterminal, in communication, reading, and entertainment for people with great convenience.At the same time, the companies also produce the transmission of information securityissues. Therefore, how to protect the security of the mobile terminal information hasbecome a new topic of information security.Encrypted file system in under the premise of guaranteeing the integrity, andavailability of information can effectively protect the security of information, which hasbeen widely used in commercial, military, personal privacy, and other fields. And whentransparent encryption is realized in the operating system kernel level data file reading andwriting, can finish addition, decrypt files, therefore, can be under the precondition ofwithout changing the user habit, complete mobile terminal information protection. In thispaper, the use of this technology to solve the problem of transmission of information of themobile terminal, read the safety, to provide a novel information security protection modefor the mobile terminal user, and developed a mobile terminal transparent encryption filesystem, information security for the mobile terminal Expand theory and practice ofpreliminary exploration. To this end, the author has carried out research work from thefollowing five aspects:First, leads to the mobile terminal in information security research significance. TheThesis Analysis the main security threats faced by the mobile terminal, mobile operatingsystem from the hardware of mobile communication network security problems of threeaspects. General discussion of the corresponding solution is put forward;Second, major mobile platform for safety assessment of mobile market, especially thesecurity problem of the Android operating system, through the device data application three aspects carries on the analysis, the Android platform to introduce the significance oftransparent encrypted file system;Third, discusses on the Android platform transparent encryption technology realize,according to the characteristics of the virtual file system, puts forward the stack type filesystem model and its implementation technologies FiST language;Fourth, the mobile terminal is different from traditional computer, processing capacityand system resources are limited, the file encryption services and the influence of length ofkey encryption algorithm for system efficiency.Fifth, in view of the SMS information storage security information transmission of theinformation protection safety protection scheme is put forward, both secure sessionprotocol is designed. |
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