TRINABH GUPTA. Thesis advisor: Prof. Anirban Mahanti

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1 TRINABH GUPTA NE 36th Street, Building 99, Redmond, WA RESEARCH INTERESTS Computer systems, security, and privacy EDUCATION 8/2011 8/2017 The University of Texas at Austin, Austin, TX PhD in Computer Science Thesis: Toward practical and private online services Advisors: Profs. Michael Walfish and Lorenzo Alvisi 8/2005 5/2009 Indian Institute of Technology (IIT) Delhi, Delhi, India B.Tech in Computer Science Thesis: A cross sectional and longitudinal analysis of an online social aggregation network Thesis advisor: Prof. Anirban Mahanti EMPLOYMENT 9/2017 present Microsoft Research, Redmond, WA Postdoctoral researcher, Security and Privacy Research Group 1/2012 8/2017 The University of Texas at Austin, Austin, TX Graduate Research Assistant, Department of Computer Science Summer 2013 Microsoft Research, Redmond, WA Research intern, Systems Research Group Mentors: Amar Phanishayee, Ratul Mahajan, and Jaeyeon Jung 8/ /2011 The University of Texas at Austin, Austin, TX Teaching Assistant, Department of Computer Science Course: Introduction to Operating Systems 7/2009 7/2011 IBM Software Labs, Bangalore, India Systems software engineer, Linux Technology Center Summer 2008 Nvidia Graphics, Bangalore, India Software engineering intern, Embedded Systems Software Group 12/2007 1/2008 Chinese University of Hong Kong, Hong Kong Research intern Mentor: Prof. Ada Fu Summer 2007 German Research Center for Artificial Intelligence, Kaiserslautern, Germany Research intern, Image Understanding and Pattern Recognition Group Mentor: Prof. Thomas Breuel

2 AWARDS AND HONORS Spring 2017 Graduate School Dissertation Writing Fellowship, UT Austin 2015 AWS in Education Research Grant, Amazon Web Services 2011 College of Natural Sciences Dean s Excellence Award, UT Austin 2009 Best B.Tech Thesis Award, Department of Computer Science, IIT Delhi 2006 German Academic Exchange Service (DAAD) scholarship Central Board of Secondary Education (CBSE) scholarship, India 2005 All India Rank 6 in IIT Joint Entrance Examination PUBLICATIONS Trinabh Gupta, Henrique Fingler, Lorenzo Alvisi, and Michael Walfish. Pretzel: encryption and provider-supplied functions are compatible. ACM SIGCOMM, Los Angeles, CA, August Natacha Crooks, Youer Pu, Nancy Estrada, Trinabh Gupta, Lorenzo Alvisi, and Allen Clement. TARDiS: A branch-and-merge approach to weak consistency. ACM SIGMOD International Conference on Management of Data (SIGMOD), San Francisco, CA, June Trinabh Gupta, Natacha Crooks, Whitney Mulhern, Srinath Setty, Lorenzo Alvisi, and Michael Walfish. Scalable and private media consumption with Popcorn. USENIX Symposium on Networked Systems Design and Implementation (NSDI), Santa Clara, CA, March Joshua B. Leners, Trinabh Gupta, Marcos K. Aguilera, and Michael Walfish. Taming uncertainty in distributed systems with help from the network. ACM European Conference on Computer Systems (EuroSys), Bordeaux, France, April Trinabh Gupta, Rayman Preet Singh, Amar Phanishayee, Jaeyeon Jung, and Ratul Mahajan. Bolt: Data management for connected homes. USENIX Symposium on Networked Systems Design and Implementation (NSDI), Seattle, WA, April Trinabh Gupta, Amar Phanishayee, Jaeyeon Jung, and Ratul Mahajan. Towards a storage system for connected homes. Large Scale Distributed Systems and Middleware (LADIS) workshop, Farmington, PA, November Joshua B. Leners, Trinabh Gupta, Marcos K. Aguilera, and Michael Walfish. Improving availability in distributed systems with failure informers. USENIX Symposium on Networked Systems Design and Implementation (NSDI), Lombard, IL, April Sanchit Garg, Trinabh Gupta, Niklas Carlsson, and Anirban Mahanti. Evolution of an online social aggregation network: An empirical study. Internet Measurement Conference (IMC), Chicago, IL, November 2009.

3 Trinabh Gupta, Sanchit Garg, Niklas Carlsson, Anirban Mahanti, and Martin Arlitt. Characterization of FriendFeed: A web based social aggregation service. AAAI International Conference on Weblogs and Social Media (ICWSM), San Jose, CA, May EXTERNAL TALKS August 2017 April 2017 April 2017 February 2017 March 2016 April 2014 November 2013 April encryption is compatible with provider-supplied functions, conference talk at ACM SIGCOMM Scalable and private media consumption with Popcorn, workshop talk at DI- MACS/Northeast Big Data Hub Workshop on Privacy and Security for Big Data UCSB Boston University Rutgers University Toward practical and private online services, Microsoft Research, Redmond Toward practical and private online services, Microsoft Research, New York City Toward practical and private online services, VMware Research Lab University of Arizona Scalable and private media consumption with Popcorn, conference talk at Symposium on Networked Systems Design and Implementation (NSDI) Bolt: Data management for connected homes, conference talk at Symposium on Networked Systems Design and Implementation (NSDI) Towards a storage system for connected homes, workshop talk at Large Scale Distributed Systems and Middleware (LADIS) Improving availability in distributed systems with failure informers, conference talk at Symposium on Networked Systems Design and Implementation (NSDI) PATENT APPLICATIONS Amar Phanishayee, Ratul Mahajan, Rayman Preet Singh, Trinabh Gupta, and Jaeyeon Jung. Data management for connected devices. Application No. US 14/340,514, filed July 24, THESES AND REPORTS Trinabh Gupta. Toward practical and private online services. PhD thesis, The University of Texas at Austin, August 2017.

4 Sanchit Garg and Trinabh Gupta. A cross sectional and longitudinal analysis of an online social aggregation network. B.Tech thesis, India Institute of Technology Delhi, May Trinabh Gupta. Document cleanup OCRopus. Internship Report, Image Understanding and Pattern Recognition Group, German Research Center for Artificial Intelligence, Kaiserslautern, Germany, July REFEREED PRESENTATIONS Vaidyanathan Srinivasan, Trinabh Gupta, and Dipankar Sarma. Unified energy-aware scheduling. Linux Plumbers Conference (LPC), Cambridge, MA, November INVITED POSTERS Trinabh Gupta, Natacha Crooks, Whitney Mulhern, Srinath Setty, Lorenzo Alvisi, and Michael Walfish. Scalable and private media consumption with Popcorn. Google Learning, Privacy, and Mobile Data Workshop, Seattle, WA, September 2016.

5 RESEARCH EXPERIENCE AND OTHER SELECTED PROJECTS 12/ /2017 Pretzel: a private service Conceived, initiated, designed, implemented, evaluated, and led work on Pretzel, a private service in which contents are encrypted end-to-end by default and yet the service provider is able to run proprietary value-added functions (e.g., spam filtering) over the contents. Pretzel uses a state-of-the-art secure two-party computation (2PC) crytographic protocol to achieve its security properties. It optimizes this protocol for efficiency. I presented Pretzel at SIGCOMM /2013 3/2016 Popcorn: a private media delivery service Conceived, initiated, designed, implemented, evaluated, and led work on Popcorn, a private Netflix-like media delivery system in which the content of users requests (i.e., which movie a user is watching) is hidden from the media content distributor (e.g., Netflix). Popcorn relies on private information retrieval (PIR) cryptographic protocols for its security properties. For efficiency, it tailors these protocols to the media setting. I presented Popcorn at NSDI 16. 5/2013 4/2014 Bolt: secure cloud storage for smart homes As a research intern at Microsoft Research Redmond, designed, implemented, and evaluated Bolt, a cloud-based storage system that securely stores (and allows sharing of) data generated by devices in smart homes. Bolt uses standard cryptographic primitives (e.g., encryption, hashing, key regression) but applies them efficiently to the time-series data generated by smart homes. I presented Bolt at NSDI /2012 4/2013 Albatross: an accurate failure detection service Contributed to the design, implementation, and evaluation of Albatross, a failure reporting service that detects failures (e.g., host crashes, network partitions) quickly and reliably (i.e., no false positives). Albatross is targeted to data centers. Its benefits, over end-to-end timeouts based traditional failure detectors, are lower service downtimes and simpler application logic. Albatross was presented at Eurosys 15. 8/2011 4/2013 Pigeon: a new interface for failure detection Contributed to the design, implementation, and evaluation of Pigeon, which unlike Albatross (that sometimes shuts down system components in favor of accurate reports), embraces inaccuracies. It expands the failure detection interface from binary up/down reports to one that makes inaccuracies explicit. The benefit of the expanded interface is lower service downtime. I presented Pigeon at NSDI 13. 7/2009 7/2011 Energy-aware scheduling for the Linux kernel While at IBM software labs, I worked in the CPU Energy Management team within the Linux Technology Center (LTC). I refactored the CPUIdle framework (that puts idle CPUs to sleep) of the Linux kernel and ported it to PowerPC. My modifications to the Linux kernel source code were accepted into the kernel s main code repository. The findings on the energy savings were presented at Linux Plumbers Conference 10. 8/2008 5/2009 Cross-sectional and longitudinal analysis of FriendFeed As an undergraduate student, I studied characteristics of FriendFeed: an online social network that aggregates feeds from other online social networks. I investigated both the static and growth characteristics of FriendFeed s friendship graph. The findings were published at ICWSM 09 and IMC 09. 5/2007 7/2007 Document image cleanup for OCRopus As a research intern at the German Research Center for Artificial Intelligence, I developed a module for OCRopus, an Optical Character Recognition (OCR) system, to clean scanned images of documents. The module helped improve OCR accuracy and was included in the release of OCRopus right after the internship.

6 TEACHING EXPERIENCE Fall 2011 Teaching assistant for Introduction to Operating Systems (UT Austin CS372) INFORMAL ADVISING 2015 Advised an undergraduate at NYU on a JavaScript-based browser video player 2016 Mentored a junior PhD student at UT Austin PROFESSIONAL SERVICE External reviewer for 2018 USENIX Networked Systems Design and Implementation (NSDI) Scholarship committee for 2017 ACM Symposium on Operating Systems Principles (SOSP) External reviewer for 2017 IEEE Transactions on Knowledge and Data Engineering (TKDE) External reviewer for 2017 ACM Conference on Computer and Communications Security (CCS) DEPARTMENT SERVICE (UCSB) Assisted informally with PhD student recruiting, Spring 2018 PROGRAMMING SKILLS Proficient in C, C++, Java, Python; familiar with C#, SML, SQL Contributed several patches to the Linux kernel source code

Stavros Nikolaou. 413 Gates Hall URL: Ithaca, NY, 14853, USA Date of Birth: December, 1987

Stavros Nikolaou. 413 Gates Hall URL: Ithaca, NY, 14853, USA Date of Birth: December, 1987 413 Gates Hall +1 6073795409 Department of Computer Science Cornell University email: snikolaou@cs.cornell.edu URL: www.cs.cornell.edu/~snikolaou Ithaca, NY, 14853, USA Date of Birth: December, 1987 Education