Alfonso De Gregorio From June 2006, I am an independent Information Assurance Consultant. From February 2005 to May 2006, I was with Andxor S.r.l. as Chief Security Architect. From July 2001 to January 2005, I worked for C & A S.r.l. (an Andxor spin-off). I joined C & A as a Sr. Security Architect. In 2003, I've been appointed Chief Security Architect. In the 2003, I was also a Visiting Scholar at Dept. Elect. Eng.-ESAT/SCD-COSIC, Katholieke Universiteit Leuven. Before joining C & A, I have done consultancy work in the area of information security (1997-2001). My research interests are in the areas of information security and system dependability. Email: adg (at) crypto (dot) lo (dot) gy.

What's New

September 2006 - Cryptographic Key Reliable Lifetime passed a second round review process and now has been included in the selected papers from FDTC 2005/FDTC 2004 in the FDTC 2006 Proceedings - LNCS vol. 4236, pp 144-158, Springer Verlag.

August 2006 - I have started my M.Sc. in Information Security, at Royal Holloway, University of London.

May 2006 - I have resigned from Andxor and started to do full-time consultancies in the information assurance field. Should you wish to discuss possible consultancy opportunities, please feel free to contact me via email at the address at the top of this page.

February 2006 - I'll be speaking at the SIMAI VIII Congress being held at Baia Samuele (Ragusa), on May 22-26 2006.

January 2006 - WWW ETA: The World Wide Weil, Eta, Tate and Ate Pairings: a Semantic Web Security Architecture

July 2005 - Here is an implementation of the framework provided in my FDTC 05 paper.

May 2005 - The next 2nd September I will be in Edinburgh for the Workshop on Fault Diagnosis and Tolerance in Cryptography (FDTC). This year is co-located with CHES. See you there!

April 2005 - What about if you could attend a special summer school on cryptanalysis? How it will be if the course would take place in Samos? Why not? Click here in order to know something more...

March 2005 - I have been appointed Evaluator by the European Commission for proposals submitted under the IST priority Strategic Objective 2.4.3 - 'Towards a Global Dependability and Security Framework' under the Sixth Framework Programme (FP6).

Papers

• The World Wide Weil and Tate Pairings: Applications of Pairing-Based Cryptography in the Semantic Web
  The extended abstract to appear in the Proceedings of the 8th SIMAI Congress.
• A. De Gregorio, Cryptographic Key Reliable Lifetimes: Bounding the Risk of Key Exposure in the Presence of Faults, 2nd Workshop on Fault Diagnosis and Tolerance in Cryptography (FDTC 2005). PDF (227k)
  Also included in proceedings of FDTC 2006, Lecture Notes in Computer Science, vol. 4236 , pp 144-158, September 2006, Springer-Verlag (33b).
• A. De Gregorio, Upper Bounds for the Selection of the Cryptographic Key Lifetimes: Bounding the Risk of Key Exposure in the Presence of Faults, Dept Elect. Eng.-ESAT/SCSD-COSIC, Katholieke Universiteit Leuven
  The extended preprint version is available at the IACR's Cryptology ePrint Archive: Report 2004/320
  PDF (214k), PS.GZ (221k), PS (713k)
• A. De Gregorio, Colliding RFC 3161 Time-Stamp Tokens, short paper, 2005
  PDF (64k), PS.GZ (64k), PS (169k)
• A. De Gregorio, Deliberately Un-Dependable Applications: the Role of Dependability Metrics in Fault Attacks,
  to appear
• A. De Gregorio, T. Fossati, G. Frustaci, Virtualizing Smart-Cards: a Step Toward Ubiquitous Cryptography, SSGRR, L'Aquila, Italy, January 6-12, 2003, ISBN: 88-85280-75-7

Seminars and Talks

• The World Wide Weil and Tate Pairings: Applications of Pairing-Based Cryptography in the Semantic Web
  22-26 May 2006 at The 8th Congress of SIMAI, Baia Samuele (Ragusa).
• Cryptographic Key Reliable Lifetimes: Bounding the Risk of Key Exposure in the Presence of Faults
  2nd September 2005 at Fault Diagnosis and Tolerance in Cryptography (FDTC) 2005, Edinburgh
  View the slides here.
• Deliberately Un-Dependable Applications: the Role of Dependability Metrics in Fault-Based Cryptanalysis
  8th August 2003 at ESAT/SCSD-COSIC, Katholieke Universitat Leuven, at the invitation of Siddika Berna Ors Yalcin
• Virtualizing Smart Cards: a Step Towards Ubiquitous Cryptography
  12th January 2003 at SSGRR 2003, Scuola Superiore Reiss Romoli, Coppito (AQ)
  View the slides here.

Current Projects

• WWW ETA: The World Wide Weil, Eta, Tate and Ate Pairings: a Semantic Web Security Architecture.

Open Source Projects

• The OpenEvidence Project funded within the Information Societies Technology (IST) Programme of the European Commission's Fifth Framework Programme (FP5) under contract number IST-2001-35174.

Life is Wonderful :-)

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