Shiva Chaitanya

I am a PhD candidate in the Department of Computer Science and Engineering at Pennsylvania State University. My research interests center around the design and implementation of secure storage solutions for performance-aware data intensive applications. The quickest way to contact me is by emailing me at chaitany[at]cse.psu.edu.

Research

Storage Security has emerged as an important requirement in recent times due to the profileration of attacks ranging from direct thefts of storage boxes to sophisticated network attacks. To alleviate the problems associated with transmitting and storing data safely, there have been a myriad of solutions covering the wide spectrum of encryption to secret sharing based approaches. All these techniques are known to incur significant performance overheads for applications demanding high throughput and fast completion times. The CPU processing times required for the cryptographic operations (in case of encryption based techniques) and polynomial transformations ( secret sharing) lie in the critical path of applications' performance. In my research, I address some of these mitigating factors and propose alternate secure architectures and models to both reduce and bound the resulting performance overheads due to the security enhancements in storage systems.

Publications

  1. Multi-level Crypto Disk: Secondary Storage with Improved Performance vs Security Trade-offs.Shiva Chaitanya,Bhuvan Urgaonkar, Anand Sivasubramaniam. Technical Report CSE -09-006, April 2009. Computer Science and Engineering, Pennsylvania State University.[PDF]
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  2. QDSL: A Queueing Model for Systems with Differential Service Levels.Shiva Chaitanya, Bhuvan Urgaonkar, Anand Sivasubramaniam. In Proceedings of the ACM Conference on Measurement and Modeling of Computer Systems (SIGMETRICS 2008), Annapolis, MD. June 2008.[PDF]
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  3. CD-PAN: A Protocol for Peer-to-Peer Content Distribution in a Weakly Connected and Heterogeneous Personal Area NetworkShiva Chaitanya, Prasenjit Sarkar. In Proceedings of 14th International Wireless Conference (WICON 2008) , Hawaii. November 2008.[PDF]
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  4. MIRAGE: Storage Provisioning in Large Data Centers Using Balanced Component Utilizations.Shiva Chaitanya, Karan Gupta, Prasenjit Sarkar. Poster at the Sixth USENIX Conference on File and Storage Technologies (FAST 2008), San Jose, CA. February 2008.[PDF]
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  5. Design, implementation and evaluation of security in iSCSI-based network storage systems.Shiva Chaitanya, Kevin Butler, Anand Sivasubramaniam, Patrick McDaniel, and Murali Vilayannur. In 2nd International Workshop on Storge Security and Survivability (StorageSS 2006), Alexandria, VA, USA. October 2006.[PDF]
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  6. Practical Reconfiguration Techniques For Secret-Sharing Based Archival Storage Systems.Shiva Chaitanya, Dharani Vijayakumar, Bhuvan Urgaonkar, Anand Sivasubramaniam. Research Report, April 2009. Computer Science and Engineering, Pennsylvania State University.
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Patent

    System and method for optimizing storage utilization Shiva Chaitanya, Karan Gupta, Madhukar Korupolu, Prasenjit Sarkar. US PATENT 7,512,754, March 31, 2009[Link]