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Welcome to my page!
Currently I am a PhD researcher at the COSIC research group at KU Leuven in Belgium under Prof. Bart Preneel . I'm funded by a PhD grant from the Flemish Research Foundation (FWO aspirant). Previously, I completed my Masters in Computer Science from Saarland University in Germany. Follow the links below to learn more about me and what I do.
Research | Publications | Talks, Conferences, Workshops and Seminars | Reviews | Personal
Research
My research interests are in the area of cryptography and particulary:
- Symmetric encryption and authentication modes of operation
- Hash functions
- Authenticated encryption schemes
- Provable security
Currently, NIST is holding a competition for a new hash function standard SHA-3. The submitted candidate hash functions made publicly available can be found on the SHA-3 Zoo. The SHA-3 Zoo is a great tool attempting to provide an overview of the design, cryptanalysis and performance of all submissions.
The COSIC research team with Sebastiaan Indesteege as a main designer and Elena Andreeva, Christophe De Cannière, Orr Dunkelman, Emilia Käsper, Svetla Nikova, Bart Preneel and Elmar Tischhauser as contributors proposed the hash function LANE for the SHA-3 NIST competition. LANE is secure, easy to understand, elegant and flexible in implementation hash function. It reuses components from the AES block cipher. LANE can take advantage of the parallelism offered by modern high-performance CPUs, but also scales down to embedded systems. Another advantages of LANE is the fact that its design is supported by a clear design rationale and a comprehensive security analysis. More information on LANE is available here .
Publications
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Elena Andreeva, Orr Dunkelman, Charles Bouillaguet and John Kelsey, "Herding, Second Preimage and Trojan Message Attacks Beyond Merkle-Damgard" , Selected Areas in Cryptography 2009, Volume ?? of LNSC, Pages ??-??, August 13-14, Calgary, Canada.
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Elena Andreeva and Bart Preneel, "A New Three-Property-Secure Hash Function", Selected Areas in Cryptography 2008, Volume ?? of LNSC, Pages ??-??, August 14-15, Sackville, Canada.
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Elena Andreeva, Charles Bouillaguet, Pierre-Alain Fouque, Jonathan J. Hoch, John Kelsey, Adi Shamir, Sebastien Zimmer, "Second Preimage Attacks on Dithered Hash Functions", EUROCRYPT 2008, Volume 4956 of LNSC, Pages 270-288, April 14-17, Istanbul, Turkey.
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E. Andreeva, G. Neven, B. Preneel, T. Shrimpton, "Seven-Property-Preserving Hashing: ROX", In Kaoru Kurosawa, editor, In Advances in Cryptology - ASIACRYPT 2007, Volume 4833 of LNSC, Pages 130-146, December 3-7, Kuching, Malaysia.
- E. Andreeva, G. Neven, B. Preneel, T. Shrimpton, "Three-Property-Preserving Iterations of Keyless Compression Functions", ECRYPT Workshop on Hash Functions 2007, May 24 - 25, Barcelona, Spain
- A. Alkassar, E. Andreeva, H. Lipmaa, "SLC: Efficient Authenticated Encryption for Short Packets", In Sicherheit 2005: Sicherheit - Schutz und Zuverlässigkeit, Beiträlge der 3rd Jahrestagung des Fachbereichs Sicherheit der Gesellschaft für Informatik e.v. (GI), Lecture Notes in Informatics (LNI) LNI P-77, J. Dittmann (ed.), Bonner Köllen Verlag, 270-278 pages, 2006.
- Analysis and Design of Authenticated Encryption Modes
Master thesis with Ammar Alkassar
Talks, Conferences, Workshops and Seminars
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Eurocrypt 2009
Cologne, Germany, April 26-30, 2009. -
Fast Software Encryption and the First SHA-3 Candidate Conference 2009
Leuven, Belgium, February 23-28, 2009. -
Dagstuhl Workshop on Symmetric Cryptography 2009
Dagstuhl, Germany, January 11-16, 2009. -
CryptoBG talk: "Hash Functions: Past, Present and Future"
International Symposium on Recent Developments in Cryptography and Information Security, Oriahovitza, Bulgaria, September 11-13, 2008. - Crypto 2008
Santa Barbara, USA, August 17-21, 2008. - Selected Areas in Cryptography, presentation: "New Three-Property-Achieving Iterated Hash Function"
Sackville, Canada, August 13-15, 2008. - Hash functions in cryptology: theory and practice
Lorentz Center, Leiden, Holland, June 2-6, 2008. - 3rd ECRYPT PhD Summer school on Advanced Topics in Cryptography 2008
Crete, Greece, May 12-16, 2008. - Eurocrypt 2008
Istanbul, Turkey, April 14-17, 2008. - Asiacrypt 2007 presentation: "Seven - Property - Preserving Iterated Hashing: ROX"
Kuching, Malaysia, December 3, 2007. - Barcelona presentation: "Three - Property - Preserving Iterations of Keyless Hash Functions"
Barcelona, Spain, ECRYPT Workshop on Hash Functions, May 25, 2007. - 2nd ECRYPT PhD Summer School on Emerging Topics in Cryptography
Samos, Greece April 30 - May 4, 2007. - Dagstuhl presentation: "Seven - Property - Preserving Iterated Hash: the RMC Construction"
Dagstuhl, Germany, Symmetric Cryptography Seminar, January 8 - 12, 2007. - WISSEC, 1st Benelux Workshop on Information and System Security
Antwerpen, Belgium, K. U. Leuven, November 08 - 09, 2006. - IPICS Summer School, Intensive Program on Information and Communication Security
Leuven, Belgium, K. U. Leuven, July 17 - 28, 2006. - Magdeburg presentation: "SLC: Efficient Authenticated Encryption for Short Packages"
Magdeburg, Germany, IT Security Conference, February 20 - 22, 2006. - COSIC seminar: "Authenticated Encryption Modes of Operation"
Leuven, Belgium, K. U. Leuven, COSIC, February 9, 2005. - Cryptoday presentation: "Overview of Authenticated Encryption Modes of Operation"
First Cryptoday, Mannheim, Germany, December 1, 2004.
Reviews
Reviewer for: Journal of Discrete Applied Mathematics
Reviewer for: FSE 2009, Eurocrypt 2009, Asiacrypt 2008, SAC 2008, Eurocrypt 2008, Eurocrypt 2007, Crypto 2007, SAC 2007, ACM CCS 2007, FSE 2007, Crypto 2006, ICALP 2006
Master thesis supervision:
Raoul Ghosh, RWTH Aachen, "Overview and Security Analysis of Tree-based Domain Extenders for Hash Functions"
Personal
I come from the beautiful coast town of Balchik in Bulgaria. My studies have taken me within Bulgaria to Dobric and Varna, and later abroad to Germany and now Belgium.