CLASS: Cloud Log Assuring Soundness and Secrecy Scheme for cloud forensics
Document Type
Article
Publication Date
6-1-2021
Abstract
ser activity logs can be a valuable source of information in cloud forensic investigations; hence, ensuring the reliability and integrity of such logs is crucial. Most existing solutions for secure logging are designed for conventional systems rather than the complexity of a cloud environment. In this paper, we propose the Cloud Log Assuring Soundness and Secrecy (CLASS) process as an alternative scheme for the securing of logs in a cloud environment. In CLASS, logs are encrypted using the individual user's public key so that only the user is able to decrypt the content. In order to prevent unauthorized modification of the log, we generate proof of past log (PPL) using Rabin's fingerprint and Bloom filter. Such an approach reduces verification time significantly. Findings from our experiments deploying CLASS in OpenStack demonstrate the utility of CLASS in a real-world context.
Keywords
Cloud computing, Forensics, Servers, Privacy, Public key, Cloud forensics, Cloud log, Cloud log assuring soundness and secrecy, Cloud security, Proof of past log, Sustainable computing
Divisions
fsktm
Publication Title
IEEE Transactions on Sustainable Computing
Volume
6
Issue
2