Research On Transmission Encryption And Track For Cloud Audit Data

Cloud audit as the important issues in the audit area,with overwhelming superiority than traditional audit method,but cloud audit brings opportunities to the development of auditing industry and unprecedented challenges.Internal and external data security issues has always been one important aspect of cloud audit.How to protect the security in the data delivery and solve the core problem of audit development,how to protect the data integrity in the cloud and break through the bottleneck of cloud audit development,how to record the operation of cloud database and standardize the internal behavior,that achieve postmortem traceback.Become a hot topic of research in cloud audit security area.The paper takes the cloud audit as study object and ensure the internal and external data security as point and the data encryption,the data integrity verification and the technology on track and liability as the main line,research and implementation of the related theory and technology based on system development design and functional test.Firstly,the study analyzed the development of cloud audit at home and abroad with consult and study related literature,this paper summarizes the security issues of internal and external data in the development of cloud audit.Secondly the study sorted out the framework of cloud audit and related basic theories,as the basic knowledge support for the related scheme technology.Finally,this paper presents a scheme of HBES(Hybrid Bidirectional Encryption Scheme)and improved data integrity verification,and a technology on track and liability.This paper analyzes the advantages and detailed process of the related scheme technology.Based on this,Microsoft Visual Studio is used to develop this system,along with storing data in combination SQL Server,The system design is based on the HBES scheme,which using mature encryption technology,the improved check technology of MD5 as main line,tri-level defense system with a technology on track and liability to achieve prevent beforehand,early warning and liability afterwards.This paper designs prototype system based on transmission encryption and track for cloud audit data.Finally,the practicability,effectiveness and feasibility of the system are verified by the coding design and functional testing of sub-modules,it provides solutions for the internal and external security problems in the development of cloud audit.