Research And Implementation On Application Software Hybrid Trust Measurement

With the rapid development of information technology，information securityproblem becoming more and more serious. This kind of situation is not only harmfulto human beings, but also restricts the development of informatization.The problem ofinformation security is in a very important position, and gets more attention.Trustedcomputing is a new information security technology and is a hot technology in thefield of information security. Safety start is a typical application of trusted computing.The current use of the TPM, TCM or TPCM to safety start in trusted computing. Theresearch on application trust measurement is premature after the operating systemload.Firstly, research the static measurement and dynamic measurement of applicationsoftware. Analysis and improve the two kings of measure method from the aspect.Designed a credibility of the application software a mixed measurement mode anddescribed the mixed measurement mode，in accordance with the research of static anddynamic measurement.Then, analyzed and introduced the key technology related to the realization ofapplication software mixed measurement, which mainly is the system call interceptiontechnology, including the core level interception and user level interceptiontechnology. Using system call interception technology to capture the software startand capture all kinds of software behavior.Finally, designed and implemented the application system of mixed measurementapplication software. The system is C/S mode, to protect the security of computersystems from prevent the harm of the software operation. The test results show thatthe system can effectively prevent the harm of general operation, and can collect newsoftware which is harmful, and can realize the detection and discrimination ofunknown harmful software.