Research About Online Forensics Of Smart Phone

Smart phone has a wide range of applications,using the phone's criminal activities are increasing,while smart phone forensics,detection efficiency can be improved.Mobile Phone Forensics can protect the legitimate interests of the people will not be harmed while combating criminals or crime.Powerful means persons offenses.The phone forensics methods with different operating modes to change,key technology research paper evidence Android system as the starting point,the analysis of the evidence required in all aspects of online and analyze various aspects of the problem in the face of evidence collection process the main findings are as follows:1.Analysis of the smart phone online data extraction technology,this paper discusses the important data extraction methods,including basic information(messages,contacts,call history),as well as sensitive information(e-mail,browser,third-party app).Through the analysis of the overall structure and various functions of cache,the unified extraction of the above information evidence is realized.2.Based on the shortcomings of existing text categorization algorithms,the corresponding improvement measures are put forward to solve the problem of scattering feature words effectively by using similarity calculation method of search engines.Secondly,on the basis of these shortcomings,a computational model is designed which is very similar to page duplication and semantic fragments.3.Construction of the smart phone online forensics system,on the basis of the needs analysis,completed the overall smart phone online forensics system architecture,the overall structure of the design,and data transfer is complete,the basic information extraction,deleted data recovery,information processing function such as design,calculation algorithm gives system design,intelligent mobile phone online forensics system interface code,and test its function,verify its feasibility and practicality.