Research on the Key Technology of Secure Computer Forensics

Computer Forensics is a research hot topic in the field of computer security with the recent increases in illegal accesses to computer system. According to the procedure of computer forensics, this paper presents the frame model of computer forensics, analyses the source of digital evidence. Because of digital feature, it is especially critical to how to secure the protection of digital evidence and make computer forensics have legal recognition of ability. From the computer evidence collection phase, transmission phase and the storage stage, this paper discusses the key technologies and approaches to ensure the security of digital evidence respectively. Through the guidance of the frame model and the security guarantee to each stage of computer forensics, the evidence would eventually be provided to the court.