1. Department of Computer Information and Cyber Security, Jiangsu Police Institute, Nanjing, China
2. Engineering Research Center of Electronic Data Forensics Analysis, Jiangsu Province, Nanjing, China
3. Key Laboratory of Digital Forensics, Department of Public Security of Jiangsu Province, Nanjing, China
4. School of Intelligent Engineering, Nanjing Institute of Railway Technology, Nanjing, China