2012/11/19 by Shams Zawoad, Zawoad, Shams, Ragib Hasan +1
Computer Science · #Advanced Data Storage Technologies #Cloud Data Security Solutions #Cryptography and Security (cs.CR) #Digital and Cyber Forensics #Distributed #FOS: Computer and information sciences #Parallel #and Cluster Computing (cs.DC) #cs.CR #cs.DC
paper · pdf · doi:10.48550/arxiv.1211.4328
To appear at the Proceedings of the 2012 ASE International Conference on Cyber Security
arxiv created 2012/11/19 · openalex publication_date 2012/11/19 · arxiv updated 2012/11/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Cloud computing has emerged as a popular computing paradigm in recent years. However, today's cloud computing architectures often lack support for computer forensic investigations. A key task of digital forensics is to prove the presence of a particular file in a given storage system. Unfortunately, it is very hard to do so in a cloud given the black-box nature of clouds and the multi-tenant cloud models. In clouds, analyzing the data from a virtual machine instance or data stored in a cloud storage only allows us to investigate the current content of the cloud storage, but not the previous contents. In this paper, we introduce the idea of building proofs of past data possession in the context of a cloud storage service. We present a scheme for creating such proofs and evaluate its performance in a real cloud provider. We also discuss how this proof of past data possession can be used effectively in cloud forensics.