University of the Aegean, department of
Products and Systems Design Engineering, Lecturer, Lectures on 'Informatics',
'Programming', 'Analysis and Design of Information Systems', 'Mathematics'.
Hellenic Open University, studies in
Computer Science, Tutor on 'Introduction to Informatics'.
Athens University of Economics and Business
(AUEB), department of Informatics, Lecturer 407/80, Lectures on the MSc course
'Computers & Networks Security'.
Technological Educational Institute (TEI) of
Athens, Department of Informatics, Scientific collaborator, Lectures on 'Operating Systems'
National Center of Public Administration,
Educational Institute, Instructor in the area of Informatics and Information
Security.
e-UNIVERSITY PKI, 'Design and Implementation
of the PKI services for the e-University', InfoSociety (2006-2007)
e-SCHOOL PKI, 'Design and Implementation
of the PKI services for the e-School', InfoSociety (2006-2007)
e-IDENTITIES, 'Design and Implementation of
a Certification Authority for the issuance of electronic RFID-based digital identities' (2006)
ENISA, 'Who is Who Database', Design and
Implementation of a database for information security related organizations
across Europe, European Network and Information Security Agency (2006)
VNOC II, ‘Design and Implementation of
distributed Virtual Network Operations Center (Virtual NOC), Greek Network of
Research and Technology (GRNET S.A.) (1/2004 - ...)
PKI-GRNET, "Design and Implementation of
Public Key Infrastructure in the Greek Academic Network", GRNET S.A. (10/2003
– ...)
PKI-EDUNET, Project Coordinator, "Design and
Implementation of Public Key Infrastructure for the National School Network,
Information Society (9/2003 – ...)
AEGEAN SMART CARDS, "Design and
Implementation of Smart Card Infrastructure, for Physical Access Control and
for Digital Signatures in the University of the Aegean (1/2003 – óÞìåñá)
PKI Survey, "Survey of the Public Key
Infrastructure in European governmental services and proposal of
Best-Practices for PKI implementation in electronic government", Greek
Presidency of EU, GGET (2003)
IKA-Security, "Study on the Security of the
Integrated Information System of the Greek Social Security Organization (IKA)"
(2002)
PAVET-2000, "Time-stamping services for
Secure Electronic Transactions", Program ‘Competitiveness’, Program for the
Development of Industry Research and Technology, GGET, Unisystems A.E.
(2001-2002)
AEGEAN-NET II, ‘Advanced Telematic Services
at the University of the Aegean", Ministry of Education, Information Society
(2001-today)
INVITATION-51, ‘Advanced Telematic Services
for the Elementary Education’, Ministry of Education, Information Society
(2003-today)
KEPLINET ‘Support of the Information
Infrastructures of the 1st and 2nd level Schools at the prefectures of Lesvos,
Chios, Samos, Dodecanese and Cyclades, Ministry of Education, Information
Society (2002-today)
VNOC, ‘Design and Implementation of
distributed Virtual Network Operations Center (Virtual NOC), Greek Network of
Research and Technology (GRNET S.A.) (2000 – 2003)
KEDO-DBADMIN, Database Management of the
National School Network, Design and Implementation of Integrated Information
System for the Administrative needs of the Schools Network, Athens University,
Computer Technology Institute (ITY) (2000 – today)
EDUNET, Member of the Technical Committee,
‘Design, Implementation, Administration and Support of the Network and the
Telematic Services of the 2nd level educational and administration units,
EPEAEK, Information Society (1999 – today)
CERT-GRNET, ‘Computer Emergency Response
Team in the Greek Academic Network’, GRNET S.A.., (2000-2002)
TAXIS-Security, "Study on the Security of
the Integrated Information System of the Greek Ministry of Finance" (1999)
SCHOOL SERVICES, ‘Analysis and Design of
Services for the National School Network', EPEAEK (1999-2000)
GU-NET, Greek Universities Network,
'Analysis and Design of the Security Infrastructure of the Greek Universities
Network', Ministry of Education (1998 – 2000)
ASKOI TOU AIOLOU, Network Infrastructure of
the 2nd level educational units, Framework 'ODYSSEIA', EPEAEK (1998-2000)
RESEXP, ‘Research Exploitation: Research on
the alternative methods for the funding of Higher Education Institutes,
through the exploitation of their Assets’, EPEAEK (1998 – 2000)
KEYSTONE, ‘European Cross-domain Public-Key
Infrastructure Architecture’, EU-DGXIII European Trusted Services ETS-II,
Programme 23187, European Union (1998-1999)
ODYSSEAS, ‘Support of network services at
schools in the Aegean Archipelago, EPEAEK (1998 – 1999)
AEGEAN-NET, ‘Analysis, Design and
Implementation of network services in the University of the Aegean, Ministry
of Education (1997 – 2001)
Nikolaos Rentas, "Value-added Certification Services, in the Public Key
Infrastructure", M.Sc. Thesis, M.Sc. in Information Systems, Athens University
of Economics and Business (January 2004)
Awarded a prize as the outstanding
Information Technology M.Sc. thesis from the Glasgow University
Emerald Award for Excellence 2006: "Higly
Commended" for the article: (J08) Lekkas D., Gritzalis S., Mitrou L.,
“Withdrawing a declaration of will: Towards a framework for Digital
Signature Revocation”, Internet Research, Vol.15, No.4, pp.400-420,
Sept.2005
Emerald Award for Excellence 2007:
"Outstanding Paper" for the article: (J10): Lekkas D., Lambrinoudakis C.,
“Outsourcing Digital Signatures: A solution to key management burden”,
Information Management & Computers Security, Vol.14, No.5, pp.435-448, 2006
Statistical Decisions Ltd. (Bank Advisors):
Consultant for the Design and Implementation of the Information Infrastructure
of the Company (6/2000 – 9/2001)
Intermed Overseas S.A. (Shipping Company):
Information Systems Analyst and Manger of Information Infrastructures (9/1994
– 6/1997)
Helveco Ltd. (International Trade): Design
and Implementation of special Administrative Applications (9/1993 – 12/1994)
Greek Ministry of Defense: Information
Systems Analyst and Programmer (1/1993 – 7/1994)