Poorvi L. Vora Research

Poorvi Vora - Research

Journal Publications: In Review
1. David Chaum, Jeroen van de Graaf, Peter Y. A. Ryan and Poorvi L. Vora. Secret Ballot Elections with Unconditional Integrity. In review. Also available as Report 2007/270, cryptology eprint archive.
2. Darakhshan J. Mir and Poorvi L. Vora. Related-Key Statistical Cryptanalysis. In review. A previous draft available as Report 2007/227 in the cryptology eprint archive.
3. Sumit Joshi, Yu-An Sun and Poorvi L. Vora. Price Discrimination and Privacy: A Note. In review.
4. Sumit Joshi, Yu-An Sun and Poorvi L. Vora. The Influence of Valuation Estimation on Sealed-Bid Auctions. In review.
5. Sumit Joshi and Poorvi L. Vora. Networks of Multimarket Bidding Rings. In review.
6. Yu-An Sun and Poorvi L. Vora. Private-Value Auctions and Differential Pricing: Optimal Seller and Bidder Strategies in Second-Chance Offers. In review.
7. Stefan Popoveniuc and Poorvi L. Vora. A framework for secure electronic voting. In review.
8. David Chaum, Ben Hosp, Stefan Popoveniuc and Poorvi L. Vora. Accessible Voter Verifiability. In review.
Journal Publications: Accepted/Appeared
1. Rahul Simha and Poorvi L. Vora. Vote Verification using Hard AI Problems. To appear, Journal of Information Assurance and Security, vol. 3, no. 3, 2008
2. Ben Hosp and Poorvi L. Vora. An Information-Theoretic Model of Voting Systems. To appear, Mathematical and Computer Modelling. Special issue on: Mathematical Modeling of Voting Systems and Elections: Theory and Applications. Oct/Nov 2008.
3. David Chaum, Aleks Essex, Richard Carback, Jeremy Clark, Stefan Popoveniuc, Alan T. Sherman, Poorvi Vora. Scantegrity: End-to-End Voter Verifiable Optical-Scan Voting. IEEE Security and Privacy, Vol 6., No. 3, pp. 40-46, May/June 2008
4. Poorvi L. Vora. An Information-Theoretic Approach to Inference Attacks on Random Data Perturbation and a Related Privacy Measure. IEEE Trans. Info Theory, Vol. 53, No. 8, pp 2971-2977, August 2007.
5. P.L. Vora, B. Adida, R. Bucholz, D. Chaum, D.L. Dill, D. Jefferson, D.W. Jones, W. Lattin, A.D. Rubin, M.I. Shamos, and M. Yung. Evaluation of Voting Systems. Inside Risks Column. Communications of the ACM, vol. 47, no. 11, November 2004.
6. K. Gopalakrishnan, Nasir D. Memon and Poorvi L. Vora. Protocols for Watermark Verification. IEEE Multimedia, special issue on Multimedia and Security, pp. 66-71, Oct-Dec. 2001¹
7. Poorvi L. Vora. Inner products and orthogonality in colour recording filter design. IEEE Trans. Image Proc , vol. 10, no. 4, pp. 632-642, Apr. 2001²
8. Poorvi L. Vora, Joyce E. Farrell, Jerome D. Tietz, David H. Brainard. Image Capture: Simulation of Sensor Responses from Hyperspectral Images. IEEE Trans. Image Proc , vol. 10, no. 2, pp. 307-316, Feb. 2001³
9. Poorvi L. Vora and H. Joel Trussell. Mathematical Methods for the Analysis of Color Scanning Filters IEEE Trans. Image Process., vol. 6, no. 2, pp. 321-327, Feb. 1997.
10. Poorvi L. Vora and H. Joel Trussell. Mathematical Methods for the Design of Color Scanning Filters IEEE Trans. Image Process., vol. 6, no. 2, pp. 312-320, Feb. 1997.
11. Poorvi L. Vora and H. Joel Trussell. Measure of goodness of a set of color scanning filters. Journal of the Optical Society of America-A, vol. 10, no. 7, pp. 1499-1508, July 1993.
Conference Publications
1. Stefan Popoveniuc and Poorvi L. Vora. Remote ballot casting with Captchas. To be presented, WISSEC.
2. Stefan Popoveniuc and Poorvi L. Vora. A framework for secure electronic voting. WOTE 08
3. Rahul Simha and Poorvi L. Vora. Vote Verification using CAPTCHA-like Primitives. WOTE 07
4. Sumit Joshi, Yu-An Sun, Poorvi L. Vora. Privacy In A Multi-Stage Game -- An Evolutionary Programming Approach. To be presented, 6th International Conference on Computational Intelligence in Economics & Finance, July 2007.
5. Sumit Joshi, Yu-An Sun, Poorvi L. Vora. Randomization as a Seller Strategy during Price Discrimination, and its Impact on Bidder Privacy. WPES 06.
6. Poorvi L. Vora, Darakhshan Mir. Related-Key Linear Cryptanalysis. ISIT06.
7. Ben Hosp, Poorvi L. Vora. "An Information-Theoretic Model of Voting Systems".
  - WOTE 2006. Paper
  - VSRW 2006. Paper
8. Sumit Joshi, Yu-An Sun, Poorvi L. Vora. The Privacy Cost of the Second Chance Offer. WPES '05. Presentation
9. Lillie Coney, Joseph L. Hall, Poorvi L. Vora, David Wagner. Towards a Privacy Measurement Criterion for Voting Systems. National Conference on Digital Government Research, Atlanta, May 2005.
10. Poorvi Vora. Information Theory and the Security of Binary Data Perturbation. pp 136-147, INDOCRYPT 2004. Power Point Presentation.
11. Cormac Herley, Poorvi Vora and Xuguang Yang. Detection and Deterrence of Counterfeit of Valuable Documents. Proceedings, ICIP, 2004.
12. Poorvi Vora. The channel coding theorem and the security of binary randomization, ISIT, pp. 306, 2003. (extended abstract)
13. Nasir Memon, Poorvi Vora, Boon-Lock Yeo, Minerva Yeung. Distortion bounded authentication techniques, Proceedings of the SPIE, Security and Watermarking of Multimedia Contents II, vol.3971, pp. 164-74, 24-26 Jan. 2000
14. Poorvi L. Vora, Robust Watermarking Using Argument Modulation. PICS (Image Processing, Image Quality, Image Capture Systems) conference, Savannah, Georgia, April 25-28, 1999.
15. Richard L. Baer, William D. Holland, Jack Holm, Poorvi Vora. A Comparison of Primary and Complementary Color Filters for CCD-based Digital Photography. Proceedings, IS\&T/SPIE Conference on Sensors, Cameras, and Applications for Digital Photography, San Jose, CA, 27 January 1999, vol. 3650, pp. 16-25.
16. Nasir Memon and Poorvi Vora. Authentication Techniques for Multimedia Content. SPIE Conference on Multimedia Systems and Applications, Photonics East, Boston, MA, 2 November 1998, vol. 3528, pp. 412-422.
17. Poorvi L. Vora and Cormac E. Herley. Trade-offs between color saturation and noise sensitivity in image sensors. Proc. of the Int. Conf. Image Proc., Chicago, Oct. 1998.
18. Poorvi L. Vora, Joyce E. Farrell, Jerome D. Tietz, David H. Brainard. Linear models for digital cameras. Proceedings, IS&T's 50th Annual Conference, 18-23 May 1997, Cambridge, Massachsetts, pp. 377-382.
19. Poorvi L. Vora, Michael L. Harville, Joyce E. Farrell, Jerome D. Tietz, David H. Brainard. Image capture: synthesis of sensor responses from multispectral images. Proceedings, SPIE and IS&T conference on Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II, vol. 3018, pp. 2-11, 1997.
20. Bhaskar Bhumkar, Poorvi L. Vora, B. Chandna and K. Shankar. A Set Theoretic Approach to Image Reconstruction from Projections. Int. Conf. on Image Proc., Laussanne, Sept. 1996.
21. Poorvi L. Vora, H. Joel Trussell and Lawrence Iwan, Design Results for a Set of Thin Film Color Scanning Filters, IS&T/SPIE Symposium on Electronic Imaging, Science and Technology, San Jose, CA, 6-10 Feb. 1995.
22. Poorvi L. Vora, H. Joel Trussell and Lawrence Iwan, A Mathematical Method for the Design of Color Scanning Filters, IS&T/SPIE Symposium on Electronic Imaging, Science and Technology, San Jose, CA, 31 Jan - 5 Feb. 1993.
23. H. Joel Trussell and Poorvi L. Vora. On the Accuracy of Scanning Color Images. International Conference on Acoustics, Speech and Signal Processing, Vol. 3, pp. 161-164, 1992.
24. Poorvi L. Vora and H. Joel Trussell, Measures of Goodness of a Set of Color Scanning Filters, Proc. SPIE and IS&T Conference on Color Hard Copy and Graphic Arts, vol. 1670, pp. 344-351 Feb. 11-Feb. 14, 1992.
25. H. Joel Trussell and Poorvi L. Vora. Bounds on Restoration Quality Using Spatial a priori Information. International Conference on Acoustics, Speech and Signal Processing, New York, NY. Vol. 3, pp. 1758-1761, 1988.
Book Chapters
1. I. Dickinson, D. Reynolds, D. Banks, S. Cayzer, Poorvi Vora. User profiling with privacy: a foundation for adaptive information agents. Intelligent Information Agents: An AgentLink Perspective, Chp. 4.Editors: Matthias Klusch, Sonia Bergamaschi, Pete Edwards, Paolo Petta. Springer Verlag, LNCS Volume 2586/2003, Pages: 123 - 151, 2003.
Selected Invited Presentations
- Cryptanalysis
  1. Georgia Tech., April 2008
  2. Indian Institute of Sciences, Bangalore, India, December 2006
  3. Information Theory Seminar, University of Maryland, College Park, April 2006
  4. Hewlett-Packard Laboratories, Princeton, February 2006
  5. IBM Research, Hawthorne, February, 2006
- Electronic Voting
  1. Dagstuhl seminar Frontiers of Electronic Voting, July 2007.
  2. NSF Washington Area Trustworthy Systems Hour (WATSH) October 2004
  3. DIMACS Workshop on Electronic Voting, Rutgers University, May 2004
- Privacy
  1. Katholieke Universiteit Leuven, Belgium, July 2008
  2. Indian Institute of Technology, Mumbai, India, July 2008
  3. TAMI/PORTIA Workshop, MIT, 2006
  4. Hewlett-Packard Laboratories, Palo Alto, August 2005
  5. DIMACS/Portia Workshop on Privacy in Data Mining, Rutgers University, March 2004
  6. DIMACS/Portia Working Group on Privacy in Data Mining, Rutgers University, March 2004
  7. IBM Research, Hawthorne, April, 2003
  8. Workshop on Privacy in D.A.T.A., Carnegie Mellon University, March 27-28, 2003. Slides, PPT, Slides, PDF, Slides, html
  9. Security Seminar, College of Computing and Information Security Center, Georgia Tech., November, 2002
  10. Security Group Seminar, Dept. of Computer Science, Stanford University, October 2002
  11. Microsoft Research, Silicon Valley, September 2002
  12. Microsoft Research, Redmond, September 2002
  13. Dept. of Computer Science, Brooklyn Polytechnic University, August 2002
Unpublished
1. Poorvi Vora. Towards a theory of variable privacy. Presentation
2. Poorvi Vora. David Chaum’s Voter Verification using Encrypted Paper Receipts.
Technical Reports (other than those listed in footnotes to journal papers)
1. Darakhshan J. Mir and Poorvi L. Vora. Related-Key Statistical Cryptanalysis. Report 2007/227 in the cryptology eprint archive.
2. Poorvi L. Vora. David Chaum’s Voter Verification using Encrypted Paper Receipts. IACR eprint archive, no. 2005/050. Submitted 20 Feb., 2005.
3. Poorvi L. Vora, Joyce E. Farrell, Jerome D. Tietz, David H. Brainard>, "Digital color cameras - 1 - Response Models", Hewlett-Packard Technical Report, HPL-97-53, March 1997. Abstract, Postscript, pdf
4. Poorvi L. Vora, Joyce E. Farrell, Jerome D. Tietz, David H. Brainard, "Digital color cameras - 2 - Spectral Response", Hewlett-Packard Technical Report, HPL-97-54, March 1997. Abstract, Postscript, pdf
Patents Granted
1. "Anonymous transactions based on distributed processing", (with V. Knapp). US7,187,772 . Filed 10 May 2002. Issued 6 March 2007.
2. "Detection and deterrence of counterfeiting of documents" having a characteristic color. US 6748100. Issued June 8, 2004. (with X. Yang and C. Herley).
3. "Multi-level detection and deterrence of counterfeiting of documents with reduced false detection", (with X. Yang and C. Herley). US 6516078. Filed July 29, 1999. Issued February 4, 2003.
4. "Probabilistic Privacy Protection", (with U. Vazirani and V. Knapp). US 6470299 . Filed November 2, 2000. Issued October 22, 2002.
5. "Robust watermarking for digital objects". US 6463162 . Filed September 30, 1998. Issued October 8, 2002.
6. "Detection and deterrence of counterfeiting of two-sided documents", (with C. Herley). US6335794 . Filed 23 December 1998. Issued January 1, 2002.
Standards Position papers
1. Poorvi Vora, Dave Reynolds, Ian Dickinson, John Erickson, Dave Banks. Privacy and Digital Rights Management, a position paper for the W3C workshop on Digital Rights Management, January 2001, Antibes, France. Power Point Presentation
2. John Erickson, Matt Williamson, Dave Reynolds, Poorvi Vora, Peter Rodgers. Principles for Standardization and Interoperability in Web-based Digital Rights Management, a position paper for the W3C workshop on Digital Rights Management, January 2001, Antibes, France.
Sponsorship
1. NSF CCF 0830576 (2008-2010)
2. NSF Cybertrust 0831149 (2008-2010)
3. NSF 0505510 (2005-2006)
4. HP Research Gift 2004
5. GW Dilthey Award (07/2004-08/2004)
6. NIST Workshop co-sponsorship (06/2006)
7. GW/SEAS Start-up Funds (2003-2007)
Non-technical
1. "On my return from Dacca" translated from the Urdu of Faiz Ahmed Faiz (Dacca se wapasi par) by Poorvi Vora, To Topos Poetry International, PACIFICA: PEACE & the SEA, Vol. 5, pg. 50, 2003.
2. "Shackles on your feet" translated from the Urdu of Faiz Ahmed Faiz (Aaj Bazaar Mein) by Poorvi Vora, To Topos Poetry International, PACIFICA: PEACE & the SEA, Vol. 5, pg. 49, 2003.
3. "August '52" translated from the Urdu of Faiz Ahmed Faiz (Agast '52) by Poorvi Vora, To Topos Poetry International, PACIFICA: PEACE & the SEA, Vol. 5, pg. 48, 2003.
4. "The Ocean of Your Eyes" translated from the Urdu of Faiz Ahmed Faiz (Teri Samandar Ankhon Mein) by Poorvi Vora and Susan Chacko
5. Mental Health and Illness, Maitri newsletter, July 1997.

^{1 Also appeared in Proceedings of the Multimedia and Security Workshop, Oct. 1999

2 Available in pre-reviewed form as Hewlett-Packard Technical
Report, HPL-98-189, November 1998.
Abstract,
Postscript,
pdf

3Available in pre-reviewed form as Hewlett-Packard Technical
Report, HPL-98-187, November 1998.
Abstract,
Postscript,
pdf}

Email: my first name at gwu dot edu

Last modified: 18:37:15, Sunday, 12 October, 2008 local time