Susan Landau will be spending the academic year 2010-2011 as a fellow at the Radcliffe Institute for Advanced Study. She has completed a book on security risks of building surveillance into communications infrastructures; this will be published by MIT Press in spring 2011. Landau was a Distinguished Engineer at Sun Microsystems from 1999-2010; there she concentrated on the interplay between security and public policy. Her activities included surveillance issues, digital rights management, where she helped establish Sun's stance on DRM, privacy and security issues in federated identity management, and work on cryptography and export control. Before joining Sun, Landau was a faculty member at the University of Massachusetts and Wesleyan University, and held visiting positions at Yale, Cornell, and the Mathematical Sciences Research Institute at Berkeley. She also spent many summers teaching at Hampshire College Summer Studies in Mathematics, a program for high-ability high school students (cf. Supporting a National Treasure-pdf).

In recent years Landau has focused on the security risks of embedding surveillance within communications infrastructures. She has briefed members of the U.S. and European governments, written numerous articles on the issues, including for the Washington Post, Scientific American, the Chicago Tribune, and the Christian Science Monitor, and participated in several industry reports on the issue. She has also appeared on NPR a number of times (including appearances on On the Media, Science Friday, Marketplace, and Talk of the Nation). She has written technical articles for IEEE Security and Privacy, the Journal of Telecommunications and High Technology Law, and the Communications of the ACM. With Sun CTO Greg Papadopoulos, Landau helped establish Sun's principles on digital-rights management, including ``All creators are users, and many users are creators,'' and ``Respect for users' privacy is essential.'' Sun's DRM project, DReaM, provides support for fair use, the only DRM system to do so. Landau has also worked on privacy and security aspects of the Liberty Alliance federated identity management system.

Landau was originally drawn to policy issues during the 1990s Crypto Wars and the battle over cryptographic export control. Landau and Whitfield Diffie wrote Privacy on the Line: The Politics of Wiretapping and Encryption, which won the 1998 Donald McGannon Communication Policy Research Award, and the 1999 IEEE-USA Award for Distinguished Literary Contributions Furthering Public Understanding of the Profession (an updated and expanded edition was published in spring 2007.) Landau is also primary author of the 1994 Association for Computing Machinery report ``Codes, Keys, and Conflicts: Issues in US Crypto Policy.'' Prior to her work in policy, Landau did research in symbolic computation and algebraic algorithms, discovering several polynomial-time algorithms for problems that previously only had exponential-time solutions.

Landau is currently a member of the Commission on Cyber Security for the 44th Presidency, established by the Center for Strategic and and International Studies, and serves on the Computer Science and Telecommunications Board of the National Research Council and on the advisory committee for the National Science Foundation's Directorate for Computer and Information Science and Engineering. She is also an associate editor for IEEE Security and Privacy and a section board member of Communications of the ACM. She served for six years on the National Institute of Standards and Technology's Information Security and Privacy Advisory Board, and has been a member of the Association for Computing Machinery's Advisory Committee on Privacy and Security and ACM's Committee on Law and Computing Technology as well as an associate editor of the Notices of the American Mathematical Society.

Landau is active in issues related to women in science. She started researcHers, a mailing list for women computer science researchers in academia, industry and government labs and with Elaine Weyuker, created the ACM-W Athena Lectureship, an award celebrating outstanding women researchers. In 2008 Landau co-chaired the MIT Celebration of Women in Math meeting. She serves on the executive committee of ACM-W and was a member of the Computing Research Association Committee on the Status of Women in Computing Research (CRAW) from 2003-2010.

Landau is the recipient of the 2008 Women of Vision Social Impact Award, a Fellow of the American Association for the Advancement of Science and an ACM Distinguished Engineer. She received her PhD from MIT (1983), her MS from Cornell (1979), and her BA from Princeton (1976).

• S. Landau, H. Le Van Gong, and R. Wilton, "Achieving Privacy in a Federated Identity Management System," Financial Cryptography and Data Security '09.
• S. Landau, "The NRC Takes on Data Mining, Behavioral Surveillance, and Privacy," IEEE Security and Privacy, Vol. 7, No. 1, January/February 2009, pp. 58-62.

Digital Rights Management

• S. Landau, R. Stratulate, and D. Twilleager, "Consumers, Fans, and Control: What the Games Industry Has to Teach Hollywood about DRM," CCS Workshops: DRM '06.
• G. Papadopoulos and S. Landau, "Innovate, Create, and Compensate!," 19 July 2005.

Security and Public Policy

• W. Diffie and S. Landau, Communications Surveillance: Privacy and Security at Risk, Communications of the ACM, Vol. 52, Issue 11, November 2009, pp. 42-47, and Queue, September 2009.
• S. Landau, "Privacy and Security: A Multidimensional Problem," Viewpoints Column, Communications of the ACM, Vol. 51, Issue 11, November 2008, pp. 25-26.
• W. Diffie and S. Landau, "Brave New World of Wiretapping,'' Scientific American, September 2008, pp. 33-39.
• S. Landau, "Security and Privacy Landscape in Emerging Technologies,'' IEEE Security and Privacy, Vol. 6, No. 4, August/September 2008, pp. 74-77.
• S. Bellovin, M. Blaze, W. Diffie, S. Landau, P. Neumann, and J. Rexford, "Risking Communications Security: Potential Hazards of the ``Protect America Act,'' IEEE Security and Privacy, Vol. 6, No. 1, January/February 2008, pp. 24-33. A short version appeared as "Internal Risks, External Surveillance" Inside Risks 209, CACM 50, p. 128, Dec, 2007.
• S. Landau, "A Gateway for Hackers: The Security Threat in the New Wiretapping Law," Washington Post, August 9, 2007, p. A17.
• S. Bellovin, M. Blaze, E. Brickell, C. Brooks, V. Cerf, W. Diffie, S. Landau, J. Peterson, J. Treichler, "Security Implications of Applying the Communications Assistance for Law Enforcement Act to Voice over IP," 2006.
• S. Landau, "National Security on the Line," Journal of Telecommunications and High Technology Law, Vol. 4, Issue 2 (2006), pp. 409-447.
• S. Landau, "Security, Wiretapping, and the Internet," IEEE Security and Privacy, Vol. 3, No. 6, pp. 26-33, November/December 2005.
• S. Bellovin, M. Blaze, and S. Landau, "The Real National-Security Needs for VoIP", Inside Risks 180, CACM 48, Nov, 2005, p. 120.
• S. Landau and M. Stytz, "Overview of Cyber Security: A Crisis of Prioritization", IEEE Security and Privacy, Vol. 3, No. 3, pp. 9-11 and sidebar, S. Landau, C. Landwehr, and F. Schneider, "The PITAC Report: A Brief Analysis," p. 10.
• S. Landau, "What Lessons Are We Teaching," Inside Risks 180, CACM 48, June, 2005, p. 144.
• S. Landau, "Security, Liberty, and Electronic Communications," (invited talk), in Matt Franklin (ed.), Advances in Cryptology: CRYPTO 2004, Springer Verlag, pp. 355-372.
• S. Landau, "The Transformation of Global Surveillance," in Bytes, Bombs, and Bandwidth: Information Technology and Global Security, Social Science Research Council, 2003, pp. 117-131.
• W. Diffie and S. Landau, "Cybersecurity Should be Kept in Civilian Hands," Boston Globe, August 19, 2002, pp. E-4. Appeared in slightly different form as "Ensuring Cybersecurity" in NGO Reporter, Vol. 10, No. 2, Sept. 2002.
• W. Diffie and S. Landau, "The Export of Cryptography in the 20th Century and the 21st," The History of Information Security: A Comprehensive Handbook, Karl De Leeuw and Jan Bergstra (eds.), Elsevier, 2007, pp. 725-736. Originally appeared in Treichel, Jeanie and Mary Holzer (eds.), Sun Microsystems Laboratories: the First Ten Years, 2001. Sun Labs Tech Report 2001-102. A modified version of this paper, September 11th Did Not Change Cryptography Policy, Notices of the American Mathematical Society, April 2002, pp. 450-454.
• W. Diffie and S. Landau, "The Threat of .NET," New Technology Week, Nov. 5, 2001.
• S. Landau, Cryptography in Crisis, Commentary (In My Opinion), Notices of the American Mathematical Society, April 1998, p. 461.
• S. Landau, "Dangerous Increase of FBI Surveillance," Op-Ed, Chicago Tribune, March 6, 1998, p. 23.
• W. Diffie and S. Landau, Privacy on the Line: The Politics of Wiretapping and Encryption, MIT Press, 1998; updated and expanded edition, 2007.
• S. Landau and W. Diffie, "Cryptography Control: FBI Wants It, but Why?", Op-Ed, Christian Science Monitor, Oct. 6, 1997, p. 19.
• S. Landau, Eavesdropping and Encryption: U.S. Policy in an International Perspective, Conference on the Impact of the Internet on Communications Policy (1997), John F. Kennedy School of Government, Harvard University.
• S. Landau, S. Kent, C. Brooks, S. Charney, D. Denning, W. Diffie, A. Lauck, D. Miller, P. Neumann and D. Sobel, "Codes, Keys and Conflicts: Issues in U.S. Crypto Policy," ACM Press, 1994. This report, funded by the NSF, was an undertaking of the USACM Committee on Public Policy. Dr. Stephen Kent, Chief Scientist - Security Technology, Bolt, Beranek and Newman, chaired the panel, which consisted of senior members of the cryptography and security communities, including members of the government, industry, and academia. A summary of the report appeared under the title Crypto Policy Perspectives, in Communications of the ACM, Vol. 37 (Aug. 1994), pp. 115-121.
• S. Landau, Zero Knowledge and the Department of Defense, Notices of the American Mathematical Society [Special Article Series], Vol. 35, No. 1 (1988), pp. 5-12.
• S. Landau, Primes, Codes and the National Security Agency, Notices of the American Mathematical Society, [Special Article Series], Vol. 30, No. 1 (1983), pp. 7-10.

Cryptography

• S. Landau, entries for "Clipper and Capstone"; "cryptography"; "digital signatures," in William Staples, ed. Encyclopedia of Privacy, Greenwood Press, 2007.
• S. Landau, "Find Me a Hash," Notices of the American Mathematical Society, March 2006, pp. 330-332.
• S. Landau, "RSA and Public-Key Cryptography; Introduction to Cryptography; Cryptography: Theory and Practice; Algebraic Aspects of Cryptography; Elliptic Curves: Number Theory and Cryptography; Elliptic Curves in Cryptography; Modern Cryptography, Probabilistic Proofs, and Pseudorandomness; Foundations of Cryptography: Basic Tools; The Design of Rijndael: AES --- the Advanced Encryption Standard; Handbook of Applied Cryptography," " Bulletin of the American Mathematical Society, Vol. 41, No. 3 (2004), pp. 357-367.
• S. Landau, "Polynomials in the Nation's Service: Using Algebra to Design the Advanced Encryption Standard", American Mathematical Monthly, February 2004, pp. 89-117.
• W. Diffie and S. Landau, September 11th Did Not Change Cryptography Policy, Notices of the American Mathematical Society, April 2002, pp. 450-454.
• Landau, Susan. "Cryptography." Computer Sciences, Ed., Roger R. Flynn. Vol. 4: Electronic Universe. New York: Macmillan Reference USA, pp. 49-53.
• S. Landau, Advanced Encryption Standard Choice is Rijndael, Notices of the American Mathematical Society, Jan. 2001, p. 38.
• S. Landau, Communications Security for the Twenty-First Century: the Advanced Encryption Standard, Notices of the American Mathematical Society, April 2000, pp. 450-459. Reprinted, in translation, in "Surveys in Applied and Industrial Mathematics," TVP Publishers (Moscow), Vol. 7, No. 2 (2000), pp. 259-281.
• S. Landau, Standing the Test of Time: the Data Encryption Standard, Notices of the American Mathematical Society, March 2000, pp. 341-349. Reprinted, in translation, in "Surveys in Applied and Industrial Mathematics," TVP Publishers (Moscow), Vol. 7, No. 2 (2000), pp. 240-258.
• S. Landau, "Designing Cryptography for the New Century," Communications of the Association for Computing Machinery, Vol. 43, No. 5, May 2000, pp. 115-120.
• S. Landau, Cryptography in Crisis, Commentary (In My Opinion), Notices of the American Mathematical Society, April 1998, p. 461.
• Whitfield Diffie and Susan Landau, Privacy on the Line: The Politics of Wiretapping and Encryption, MIT Press, 1998.
• S. Landau, S. Kent, C. Brooks, S. Charney, D. Denning, W. Diffie, A. Lauck, D. Miller, P. Neumann and D. Sobel, "Codes, Keys and Conflicts: Issues in U.S. Crypto Policy," ACM Press, 1994. This report, funded by the NSF, was an undertaking of the USACM Committee on Public Policy. Dr. Stephen Kent, Chief Scientist - Security Technology, Bolt, Beranek and Newman, chaired the panel, which consisted of senior members of the cryptography and security communities, including members of the government, industry, and academia. A summary of the report appeared under the title Crypto Policy Perspectives, in Communications of the ACM, Vol. 37 (Aug. 1994), pp. 115-121.
• S. Landau, Some Remarks on computing the Square Parts of Integers, Information and Computation, Vol. 78, No. 3 (1988), pp. 246-253.
• S. Landau, Zero Knowledge and the Department of Defense, Notices of the American Mathematical Society [Special Article Series], Vol. 35, No. 1 (1988), pp. 5-12.
• S. Landau, Primes, Codes and the National Security Agency, Notices of the American Mathematical Society, [Special Article Series], Vol. 30, No. 1 (1983), pp. 7-10.

Identity Management and Project Liberty

• S. Landau, H. Le Van Gong, and Robin Wilton, "Achieving Privacy in a Federated Identity Management System," Financial Cryptography and Data Security '09.
• S. Landau and D. Mulligan, I'm Pc01002/SpringPeeper/ED288l.6; Who are You?, IEEE Security and Privacy, Vol. 6, No. 2, March/April 2008, pp. 13-15.
• S. Landau, Liberty ID-WSF Security and Privacy Overview, October 2003.
• S. Landau and J. Hodges, A Brief Introduction to Liberty, February 13, 2003.
• G. Ellison, J. Hodges, and S. Landau, Risks Presented by Single Sign-On Architectures, October 18, 2002.
• G. Ellison, J. Hodges, and S. Landau, Security and Privacy Concerns of Internet Single Sign-On, September 6, 2002.

Symbolic Computation

• S. Landau, "Computations with Algebraic Numbers," in J. Grabmeier, E. Kaltofen, and V. Weispfennig (eds.), Computer Algebra Handbook, Spring Verlag, 2003, pp. 18-19.
• S. Landau and N. Immerman, Embedding Linkages in Integer Lattices, Algorithmica, Vol. 43, No. 5, May 2000, pp. 115-120. A preliminary version appeared in MSI Workshop on Computational Geometry, October, 1994.
• S. Landau, Compute and Conjecture, Commentary (In My Opinion), Notices of the American Mathematical Society, Feb. 1999, p. 189.
• S. Landau, : Four Different Views, Mathematical Intelligencer, Vol. 20, No. 4 (Fall 1998), pp. 55-60.
• D. Kozen, S. Landau, and R. Zippel, Decomposition of Algebraic Functions, Journal of Symbolic Computation, Vol. 22 (1996), pp. 235-246. A preliminary version appeared in Algorithmic Number Theory Symposium (1994).
• S. Landau, How to Tangle with a Nested Radical, Mathematical Intelligencer, Vol. 16, No. 2 (Spring 1994), pp. 49-55.
• S. Landau, Finding Maximal Subfields, SIGSAM Bulletin, Vol. 27, No. 3 (1993), pp. 4-8.
• S. Landau, Simplification of Nested Radicals, SIAM J. of Comput., Vol. 21 (1992), pp. 85-110. A preliminary version appeared in Thirtieth Annual IEEE Symposium on Foundations of Computer Science (1989), pp. 314-319.
• S. Landau, A Note on `Zippel Denesting,' J. Symb. Comput., Vol. 13 (1992), pp. 41-47.
• J. Cremona and S. Landau, Shrinking Lattice Polyhedra, SIAM J. of Discrete Math, Vol. 3, No. 3 (1990), pp. 338-348. A preliminary version appeared in Proceedings of the First ACM-SIAM Symposium on Discrete Algorithms (1990), pp. 188-193.
• D. Kozen and S. Landau, Polynomial Decomposition Algorithms, J. Symb. Comput., Vol. 7 (1989), pp. 445-456. Appeared in a different version as J. von zur Gathen, D. Kozen and S. Landau, "Functional Decomposition of Polynomials" Twenty-Eight Annual IEEE Symposium on the Foundations of Computer Science (1989), pp. 314-319.
• S. Landau, Factoring Polynomials Quickly, Notices of the American Mathematical Society, [Special Article Series], vol. 34, No. 1 (1987), pp. 3-8.
• S. Landau and G. Miller, Solvability by Radicals is in Polynomial Time, J. Comput. Sys. Sci., Vol. 30, No. 2 (1985), pp. 179-208. A preliminary version appeared in Fifteenth ACM Symposium on Theory of Computing (19830, pp. 140-151.
• S. Landau, Factoring Polynomials over Algebraic Number Fields, SIAM J. of Comput., Vol. 14, No. 1 (1985), pp. 184-195.
• S. Landau, "Polynomial Time Algorithms for Galois Groups," Proceedings of the Int'l. Symposium on Symbolic and Algebraic Computation (1984), Spring Verlag Lecture Notes in Computer Science, No. 174, pp. 225-236.

Complexity

• N. Immerman and S. Landau, The Complexity of Iterated Multiplication, Information and Computation Vol. 116, No. 1 (1995), pp. 103-116. A preliminary version appeared in Fourth Annual Structure in Complexity Conference (1989), pp. 104-111.
• S. Landau and N. Immerman, The Similarities (and Differences) between Polynomials and Integers, Int'l. Conf. on Number Theoretic and Algebraic Methods in Computer Science (1993), pp. 57-59.

Women in Science

• S. Landau, "Anywhere, Anytime -- Or Just Where is Your Office Anyhow?" Pipeline series, Computing Research News, September 2005, p. 2.
• S. Landau, A Far Cry from Galois Fields, Newsletter of the Association for Women in Mathematics, November-December 2003, pp. 11-13.
• S. Landau, Time to Move Mountains, Commentary (In My Opinion), Notices of the American Mathematical Society, Sept. 2000, p. 853.
• S. Landau, Universities and the Two-Body Problem, Computing Research News, March, 1994, p. 4. Also reprinted in the Association for Women in Mathematics Newsletter, March 1994, pp. 12-14, and SIGACT News, Dec. 1994, pp. 41-43 and reprinted in "Complexities: Women in Mathematics," Bettye Anne Case and Anne Leggett (eds.), Princeton University Press, 2005, pp. 253-256.
• S. Landau, Tenure Track, Mommy Track, Association for Women in Mathematics Newsletter, May-June 1991. Also reprinted in shortened form in Notices of the American Mathematical Society, Sept. 1991, pp. 703-4 and reprinted in "Complexities: Women in Mathematics," Bettye Anne Case and Anne Leggett (eds.), Princeton University Press, 2005, pp. 260-263.

Miscellaneous

• S. Landau, Internet Time, Commentary (In My Opinion), Notices of the American Mathematical Society, March 2000, p. 325.
• S. Landau, The Myth of the Young Mathematician, Letter from the Editor, Notices of the American Mathematical Society, Nov. 1997, p. 1284.
• S. Landau, Mathematicians and Social Responsibility, Letter from the Editor, Notices of the American Mathematical Society, Feb. 1997, p. 188.
• S. Landau, Rising to the Challenge, Letter from the Editor, Notices of the American Mathematical Society, June, 1996, p. 652.
• S. Landau, "Joseph Rotblat: From Fission Research to a Prize for Peace," Scientific American, Jan. 1996, pp. 38-39.
• S. Landau, Joseph Rotblat: The Road Less Traveled, Bulletin of the Atomic Scientists, Jan.-Feb. 1996, pp. 46-54.
• S. Landau, Something There is That Doesn't Love a Wall, Letter from the Editor, Notices of the American Mathematical Society, Nov. 1995, p. 1268.
• S. Landau, Letter from the Editor, Notices of the American Mathematical Society, May 1995, p. 524.
• S. Landau, "The Secret of Life is a Nontrivial Computation," SIAM News, May 1991, pp. 12-13.
• S. Landau, "The Responsible Use of `Expert' Systems," Proceedings of the Symposium on Directions and Implications of Advanced Computing (1987), pp. 167-181. Also appeared in Directions and Implications of Advanced Computing, Vol. 1, Ablex Publishing Corp. (1989), pp. 191-202.
• S. Landau, "What's Doing in Ithaca, New York," New York Times, Sept. 9, 1979, Section X, p. 7.

Professional Activities (recent)

• member, Computer Science and Telecommuniations Board, National Research Council, 2010-present.
• member, Commission on Cyber Security for the 44th Presidency, Center for Strategic and International Studies, 2009-present.
• member, Advisory Committee, National Science Foundation Directorate for Computer and Information Science and Engineering, 2009-present.
• committee member, Usability, Security, and Privacy of Computer Systems: a Workshop, National Research Council, 2009.
• program committee member, ACM Cloud Computing Security Workshop, CCS, 2009.
• review committee, FIND Observer Panel Report, NSF Future Internet program, April 2009.
• member, Women of Vision Awards Nomination Committee, Anita Borg Institute for Women and Technology, 2009.
• member, ACM-W Council Executive Committee, 2009-present.
• co-editor, special issue on identity management, IEEE Security and Privacy, March/April 2008.
• section board member, Viewpoints, Communications of the ACM, 2008-present.
• co-chair, MIT Women in Math: A Celebration, April 12-13, 2008.
• member, Panels, Workshops, and Presentations Committee, Grace Hopper Celebration of Women in Computer Science, 2007.
• member, Industry Advisory Committee, Grace Hopper Celebration of Women in Computer Science, 2007.
• chair, selection committee, Athena Lecturer, 2006-present.
• program committee member, Computers, Freedom, and Privacy, 2007.
• program committee member, IEEE Symposium on Security and Privacy, 2006.
• program committee member, Industry and Government Track, 12th ACM Conference on Computer and Communications Privacy, 2005.
• associate editor, IEEE Security and Privacy, 2005 - present.
• moderator (and organizer), The Booklist (a list of computer science books written by women computer scientists), 2004-2009.
• moderator (and organizer) researcHers, mailing list for women computer science researchers, 2004-present.
• program committee member, Workshop on Privacy in the Electronic Society, 2004.
• member, CRA Committee on the Status of Women in Computing Research, 2003 - 2010.
• advisory board member, ACM Committee on Women, 2003 - 2009.
• program committee member, Computers, Freedom, and Privacy, 2004.
• program committee member, CRA Grand Challenges in Information Security and Assurance, 2003.
• advisory board member, Computers, Freedom, and Privacy, 2003.
• member, Information Security and Privacy Advisory Board, National Institute for Standards and Technology, 2002-2008.
• member, ACM Advisory Committee on Security and Privacy, 2001 - 2003.
• member, ACM Committee on Law and Computing Technology, 1999 - 2003.
• program committee member, Computers, Freedom, and Privacy, 2000.
• distinguished lecturer, Sigma Xi, 1999 - 2001.
• member, Symbolic Computation Review Panel, NSF, 1997.
• member, Discipline Advisory Committee (Computer Science), Fulbright Scholars, 1995 - 1997.
• associate editor, Notices of the American Mathematical Society, 1994 - 2001.
• member-at-large, Section Committee, Mathematics Section, American Association for the Advancement of Science, 1994 - 1998.

Honors and Awards

• 2008 Women of Vision Social Impact Award, Anita Borg Institute for Women and Technology.
• Fellow, American Association for the Advancement of Science.
• Distinguished Engineer, Association for Computing Machinery.
• with Whitfield Diffie, 1999 IEEE-USA Award for Distinguished Literary Contributions Furthering Public Understanding of the Profession.
• with Whitfield Diffie, 1998 McGannon Book Award for Social and Ethical Relevance in Communication Policy Research, Donald McGannon Communication Research Center (Fordham University).

Contact Information

Phone: 413-259-2018 Fax: 413-253-2156