Design And Implementation Of Data Acquisition And Analysis System For A Unit

With rapid improvement of global information technology,data is generated by computer and mobile phones and becomes more and more inextricable for users.Thus,the technology of digital forensics is now an important weapon for crime investigation,information mining and comprehensive judgment.It plays a significant role in a lot of kinds of crime.We explored the technology of data acquisition and analysis in this dissertation.Data acquisition and analysis system is a general platform for digital forensic.It supports quick data extraction and uploads to the storage server automatically,and then perform the analysis for all the data.The system could be used as a unified interface for software and hardware of digital forensics and human resources.To achieve data aggregation,sharing,and to gradually achieve lab interpretable.The system serve for frontline investigators,it could be used by the officers of law enforcement on the work of data quick extraction,digital forensic,preventive alarm management,correlation analysis and information study and judgment,it could also achieve remote assistance through the system.This dissertation combined discusses research on the technology and theory of digital forensics.It analyzes system requirement,and proposed the solution for system.The development of system's function module and procedure were based on the characteristic of requirements,as well as function design for system and subsystem.The design of system can implement the design of data acquisition,data storage,data extraction and data analysis.Following the principles of system design,it standardizes the procedure of digital extraction and analysis.In order to avoid the malfunction of system,system and device redundancy,mechanism of backup were fully considered.Each subsystem is easy to expand,software of this system has function of update.This system can connect with internet or special net,with the popularity of big data and cloud computing,this system will play a important role for future investigation of digital forensics.