IEEE Transactions on Cloud Computing
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From the October/December 2017 issue
DaSCE: Data Security for Cloud Environment with Semi-Trusted Third Party
By Mazhar Ali, Saif U.R. Malik, and Samee U. Khan
Off-site data storage is an application of cloud that relieves the customers from focusing on data storage system. However, outsourcing data to a third-party administrative control entails serious security concerns. Data leakage may occur due to attacks by other users and machines in the cloud. Wholesale of data by cloud service provider is yet another problem that is faced in the cloud environment. Consequently, high-level of security measures is required. In this paper, we propose data security for cloud environment with semi-trusted third party (DaSCE), a data security system that provides (a) key management (b) access control, and (c) file assured deletion. The DaSCE utilizes Shamir's (k, n) threshold scheme to manage the keys, where k out of n shares are required to generate the key. We use multiple key managers, each hosting one share of key. Multiple key managers avoid single point of failure for the cryptographic keys. We (a) implement a working prototype of DaSCE and evaluate its performance based on the time consumed during various operations, (b) formally model and analyze the working of DaSCE using high level petri nets (HLPN), and (c) verify the working of DaSCE using satisfiability modulo theories library (SMT-Lib) and Z3 solver. The results reveal that DaSCE can be effectively used for security of outsourced data by employing key management, access control, and file assured deletion.
Editorials and Announcements
- We are pleased to announce that TCC is now indexed in Clarivate Analytics' Web of Science under the Science Citation Index (SCI) and will receive an impact factor in the 2017 Journal Citation Report.
- Heartfelt congratulations are offered to TCC's Editor-in-Chief Hui Lei, who received a 2017 IEEE Computer Society Technical Achievement Award "for pioneering contributions to scalable access to real-world data." Read more.
- Congratulations to Hui Lei on his reappointment as 2018-2019 Editor-in-Chief of IEEE Transactions on Cloud Computing. Dr. Lei is CTO, Watson Health Cloud at IBM, where he provides leadership on the Watson Health Cloud technical strategy and spearheads the development of the Watson Health Cloud platform.
- Introduction to the IEEE Transactions on Cloud Computing by Rajkumar Buyya (PDF)
- Welcome Message by Jon Rokne (PDF)
- TCC: State of the Transactions (Jan-March 2017)
- A Message from the New Editor-in-Chief (Jan-March 2016)
- IEEE Transactions on Cloud Computing: Entering Its Fourth Year with Confidence (Jan-March 2016)
- A Status Report on IEEE Transactions on Cloud Computing (April-June 2015)
- Special Issue on Green and Energy-Efficient Cloud Computing: Part II (April-June 2017)
- Special Issue on Green and Energy-Efficient Cloud Computing: Part I (April-June 2016)
- Special Issue on Scientific Cloud Computing (Jan-March 2016)
- Special Issue on Economics and Market Mechanisms for Cloud Computing (July-Sept 2015)
- Cloud Security (Oct-Dec 2014)
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