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Full-Text Articles in Information Security
A Novel Covert Channel Detection Method In Cloud Based On Xsrm And Improved Event Association Algorithm, Lina Wang, Weijie Liu, Neeraj Kumar, Debiao He, Cheng Tan, Debin Gao
A Novel Covert Channel Detection Method In Cloud Based On Xsrm And Improved Event Association Algorithm, Lina Wang, Weijie Liu, Neeraj Kumar, Debiao He, Cheng Tan, Debin Gao
Research Collection School Of Computing and Information Systems
Covert channel is a major threat to the information system security and commonly found in operating systems, especially in cloud computing environment. Owing to the characteristics in cloud computing environment such as resources sharing and logic boundaries, covert channels become more varied and difficult to find. Focusing on those problems, this paper presents a universal method for detecting covert channel automatically. To achieve a global detection, we leveraged a virtual machine event record mechanism in hypervisor to gather necessary metadata. Combining the shared resources matrix methodology with events association mechanism, we proposed a distinctive algorithm that can accurately locate and …
Linear Encryption With Keyword Search, Shiwei Zhang, Guomin Yang, Yi Mu
Linear Encryption With Keyword Search, Shiwei Zhang, Guomin Yang, Yi Mu
Research Collection School Of Computing and Information Systems
Nowadays an increasing amount of data stored in the public cloud need to be searched remotely for fast accessing. For the sake of privacy, the remote files are usually encrypted, which makes them difficult to be searched by remote servers. It is also harder to efficiently share encrypted data in the cloud than those in plaintext. In this paper, we develop a searchable encryption framework called Linear Encryption with Keyword Search (LEKS) that can semi-generically convert some existing encryption schemes meeting our Linear Encryption Template (LET) to be searchable without re-encrypting all the data. For allowing easy data sharing, we …