关键词: 云计算，媒体取证，资源虚拟化

Abstract: Current researches about media forensics face the following key challenges : heterogeneity, scalability, and efficicncy. We proposed a new computing paradigm for media forensics, called "Media Forensics Cloud"，which integrates the concept of cloud computing to handle large-scale media forensics service effectively. To address the above challenges,first,we presented a layered architecture of Media Forensics Cloud,which can provide efficient and scalable media forensics service. hhen we presented the key technologies of Media Forensics Cloud, namely resource virtualization, forensic task parallelization,and service adaptation,by which users can efficiently access media forensics service from different terminals at anytime anywhere. Lastly, we presented a key study of Media Forensics Cloud to demonstrate the feasibility of our design.

Key words: Cloud computing,Media forensics,Resource virtualization