Helger Lipmaa's publications

Publications

(Some) Workshops without publications

Thesis

1. Master thesis ``Survey on the communication complexity'', 1995 (in Estonian)
2. PhD thesis Secure and Efficient Time-Stamping Systems, University of Tartu, 1999.

Books

1. Vello Hanson, Ahto Buldas, Tarvi Martens, Helger Lipmaa, Arne Ansper, Viljar Tulit, "Infosüsteemide turve I. Turvarisk" Küberneetika AS, 1997, 125 pages ["Security of Information Systems I.", book, in Estonian] [also available on web, buy online]
2. Vello Hanson, Ahto Buldas, Tarvi Martens, Helger Lipmaa, Arne Ansper, Viljar Tulit, "Infosüsteemide turve II. Turbetehnoloogia" Küberneetika AS, 1998, 372 pages ["Security of Information Systems II", book, in Estonian, buy online]

Chapters in Books

Books: Editor

1. Helger Lipmaa, Heidi Pehu-Lehtonen, ``Mobile security : proceedings of the Helsinki Unversity of Technology Seminar on Network Security'', Fall 2000. Espoo, Helsinki University of Technology, 2000. [Entry at HUT library (search my name), seminar homepage (with papers online)]
2. Helger Lipmaa, Moti Yung, editors, ``Inscrypt 2006'', Volume 4318 of Lecture Notes in Computer Science, pages 27-41, Springer, December 2006.

Articles in popular media

1. Helger Lipmaa, "Turvalised virtuaalsed privaatvõrgud," Arvutimaailm 2/97, pp 6-7 ["Virtual Private Networks", a survey], 1997
2. Ahto Buldas, Helger Lipmaa, "Ajatemplid digitaaldokumentidel", Arvutimaailm 2/98, pp 45-47 ["Time-stamps on the digital documents", a technical survey]

Tutorials

1. Helger Lipmaa, Cryptographic Techniques in Privacy-Preserving Data Mining. Tutorial at ECML/PKDD 2006.

Surveys and Technical Reports

Cryptography eprint Archive: search here

The rest of it (this section is incomplete):

1. Ahto Buldas, Peeter Laud, Helger Lipmaa, Jan Villemson, "Ajatempli protokollid, turvavajadused ja tehnilised nõuded," Technical Report DO-LU-X-22-1297, Küberneetika AS, 1997, 46 pages ["Timestamp protocols, security needs and technical requirements". Written by the order of Estonian Informatics Centre for the work of committee preparing the legal use of electronic documents]
2. Ahto Buldas, Helger Lipmaa, "Digital Signatures, Timestamps and the corresponding Infrastructure", Küberneetika AS, Technical Report 1998-21, [ ps.gz] Jan 1998, 7 pages [See CiteSeer entry]
3. Helger Lipmaa, "AES Candidates: A Survey of Implementations", Technical Report. Available from the list of submissions to the AES2 conference NIST Webpage, 8 pages, 1999 [See CiteSeer entry]
4. Helger Lipmaa, "Security in On-Line Governance". Survey prepared under UNESCO project "Developing Telematics and Information Networks for On-Line Governance", June 1999. [URL]
5. Helger Lipmaa, Digital Signatures and Authentication, June 1999. Updated version of a module in "Security in On-Line Governance". [URL]
6. Helger Lipmaa, Oleg Mürk, ``E-valimiste realiseerimisvõimaluste analüüs'', 33 pp, 2001. In Estonian. [``An analysis of the possibility to organise e-voting''. Analysis ordered by Estonian Department of Justice. PDF (126KB)]

Presentations

See my CV. Some of the most important presentations (that do not have a corresponding publication):

• Helger Lipmaa. E-valimised --- krüptograafi vaatevinkel. (E-voting --- the viewpoint of a cryptographer.) Seminar of the E-Voting Project, Käsmu, Estonia, Aug 3 2003. [pdf]

Some videos of my presentations:

• Crypto Day 2012, University of Latvia, Riga, Latvia. Contains talks (in this order) by Andris Ambainis, me, and Manfred Kudlek. I was talking about lattice-based cryptography.

Erdös Number: 3

There might several different chains of length 3. The first one of length 4 that I became aware of (early 2000) is: Helger Lipmaa -> Berry Schoenmakers -> Moti Yung -> Noga Alon -> Paul Erdös. The first one of length 3: Helger Lipmaa -> Andris Ambainis -> Leonard J. Schulman -> Paul Erdös.

You can check the updated information from the MR Collaboration Distance page.

My entries in:

• DBLP database

for