vtrip

Virtual Trip Internet Systems and Technologies

Outline
Background
Expertise
Services
Products
Technology
Projects
Co-operations
Research and Development
People
Clients
Contact Info

Background [1/2]
Virtual Trip was founded by a team of computer scientists and engineers from the University of Crete and criticalpublics.com in September 2000.
The company is located at the Scien ce & Technolog y Park of Crete, Heraklion .
Provides a range of services in the fields of systems consulting, design and back-end software engineering .

Background [2/2]
The Company aims to provide its services to the global market, in specialized sectors such as digital security, high performance computing and system software.
The Virtual Trip model is based on exploiting the cluster of specialist knowledge built-up around the University of Crete and the Foundation of Research and Technology, Hellas.

Areas of Expertise
Computer and network security
High performance computing
System software
Web information systems
Voice web

Computer and network security
Consulting on the security aspects of information systems and computer networks during theis design phase.
Security testing through “Ants” team.
Integration and support of customizable digital security platforms: WebSecure™,VoteSecure™,AuctionSecure™.
Security hardening of existing systems.

High performance computing
Development of parallel application.
Tuning of existing systems.
Linux clusters installations, deployment and support.
Development of large database systems using clustering-capable Oracle 9i.
Scali AS representative in the region.

System Software
Systems programming with considerable expertise in Linux and various UNIX platforms.
Security hardening of existing systems.

Web information systems
Consulting and design of web information systems.
Building of highly secure web applications.
Extensive expertise in XML-based technologies.
Areas of particular interest include corporate portals, telemedicine and e-learning.

Voice Web
Consulting and design of voice enabled information systems.
Integration of existing information systems with voice web technologies.
Extensive use of VoiceXML technology.
Flexibility on deploying various TTS and ASR engines.

Services
Consulting:
Linux
Security
HPC
VoiceXML

Linux consulting
Linux training
Linux deployment
Windows/Linux integration
Linux hardening
Support of Linux installations

Security consulting
Analysis of organization’s security plan
Security threat modeling.
Penetration testing.
Security infrastructure re-engineering.
Security training for users and system administrators.

HPC consulting
Cluster configuration/tuning
Application tuning
Parallel systems deployment and support
Training
Application porting

VoiceXML consulting
Provision of voice interface to legacy systems.
Voice-enabled information systems design.
Integration with new TTS and ASR engines.
VoiceXML training.

Products
WebSecure ™
Secure web/application server
VoteSecure ™
Web-based secure voting system
AuctionSecure ™
Web-based secure auction platform

WebSecure ™ Web/Application Server
The solution where a hig h ly secure web site is needed.
It uses Apache and Z ope, and can be hosted on any BSD, Linux or other U nix-like operating system.
Specially patched O perating S ystem and Web Application Server code , making the system practically unhackable.
Already two operational installations:
www.mod.mil.gr
www.armyjob.gr
Soon also: www.hnms.gr

VoteSecure ™ Web-based Voting System
D istributed application deploying cryptographic techniques that can be used to perform arbitrary “ vote " procedures.
The result is computed by multiple tallying authorities and the privacy of individual votes is protected by coalitions up to a specified number of authorities.
It is possible for anyone, including passive observers, to check the validity of a vote.
Wide-ranging applications in business, human resource management and e-government .

AuctionSecure ™ Web-based Auction Platform
A web based auction platform that provides an anti-collusion mechanism.
It requires a multi-person authority as auctioneer giving a universally verifiable result
It supports the following types of auctions:
First price – sealed offer auctions
Vickrey auctions
English auctions
Multi-unit Auctions

Technologies
C / C++, Java programming
MPI, PVM, CC++, HPF parallel programming.
Python, Perl scripting.
FreeBSD, Linux, Solaris platforms.
SQL / various RDBMS.
Z Object Publishing Environment, IBM WebSphere, PHP, Lotus Domino
XML, VoiceXML.

Projects [1/9]
Co-development of the new web portal of Hellenic Ministry of Defense
Based on WebSecure™
www.mod.mil.gr
XML-based application, completely dynamic content
Uses e-mail notification, sms gateway and on-line forum facilities

Projects [2/9]
Development of the Voice / Web portal of OTEPlus, a Strategic Production Unit of OTE S.A.
Extensive use of VoiceXML with IVR and TTS facilities.
Presentation of static as well dynamic content through voice as well as visual interface.
Adding value to PSTN via delivering web information.
www.oteplus.gr

Projects [3/9]
Co-operation with OTE S.A., Security Department in the context of the P1150 EURESCOM study
Investigation of e-voting scenarios, requirements, implications and solutions.
Technical architectures, security infrastructures and roles.
Business cases for e-voting

Projects [4/9]
Development of the www.armyjob.gr web portal.
Vertical portal against unemployment
Application running WebSecure™
Special security requirements with presence of dynamic data.

Projects [5/9]
Co-development of the new web portal of Hellenic National Meteorological Service
Special need for very high hit ratio, more that 2M per day
Based on Zope with ZEO configuration
Uses WebSecure™
www.hnms.gr

Projects [6/9]
Co-development of the new web portal of Hellenic Ministry of Transportation [to be launched soon]
Co-development of the new corporate portal of Commercial Bank of Greece [to be launched soon]
Co-development of the new corporate portal of ZENON S.A. [to be launched soon]

Projects [7/9]
Development of backend modules for Zope-based Critical Publics Application Framework
Web document repository
Hierarchy management system
HTML friendly editor
Co- development of the klikfilm.com streaming media portal
Implementation of interfaces for new Antenna Group portal [to be launched soon]

Projects [8/9]
Web-based Document Management System
A web-enabled system for managing large quantities of diverse kinds of documents.
Full integration with Hierarchy Management System .
XML is used for the generation of multiple content types from a global representation .

Projects [9/9]
Linux consulting to Mills of Crete:
Linux training
Linux deployment
Integration with Windows systems

Cooperations
Critical Publics
Scali
FO.R.T.H.
S.I.C.S.
University of Crete
University of Patras
Oteplus
Infomap

Research and Development
Virtual Trip participates in a number of EU funded R&D projects:
iTrust
eBusinessCity
MASC
GRASP
INNO-UTILITIES
P-1150

The Virtual Trip team

Periklis Akritidis , Software Engineer
Periklis Akritidis is a co-founder and partner of Virtual Trip Ltd. He has participated in the security design of “Mozart” programming platform, in cooperation with the Swedish Institute of Computer Science. As an undergraduate, he was with the group of Parallel and Distributed Systems, ICS/FORTH .
He is experienced in C/C++, Java, Perl, Python programming and Unix -like OS deployment and administration. His interests include Systems Programming, Computer Security and Evolutionary Computation.

Ch aralampos Gikas, Software Engineer
Ch aralampos Gikas is a co-founder and managing partner of Virtual Trip Ltd. He was with the group of Parallel and Distributed Systems, ICS/FORTH.
He is experienced in C/C++, Java, Perl and Python programming, and has considerable design and implementation experience in the context of research project s , funded by the European Commission. His interests include Parallel and Distributed Systems, Genetic Algorithms and Neural Networks.

Dimitris Tsigos, Commercial Manager
Dimitris Tsigos is a co-founder and managing partner of Virtual Trip Ltd. He was attached to the group of Networks and Telecommunications, ICS/FORTH. In 1998 he was affiliated with the CVAP Laboratory at the Royal Institute of Technology, Stockholm, Sweden.
His experience includes Quality of Service in Packet-Switching networks, and programming in C/C++ and Python. His interests include High Performance Networks, Packet Switches Architecture, Parallel Programming and E-Business.

Miltos Vasilakis, Software Engineer
Milt os Vasilakis is a co-founder and partner of Virtual Trip Ltd. He has worked at the Networks and Communications Center, University of Crete .
Miltos is experienced in C/C++, Java, Perl, Python, PHP and CGI programming, and in Windows Media Services deployment and administration. His interests include Distributed Systems, Web Technologies and Computer Games.

Nikos Venturas, Software Engineer
Nikos Venturas is a co-founder and partner of Virtual Trip Ltd. He has worked as a manager of the graphics team at the Atlantis Project, University of Crete.
He is experienced in C/C++, Java, Python, PHP programming and in web development technologies (HTML, CSS, Javascript ). His interests include Web Technologies, Information Systems and Human-Computer Interaction.

Giorgos Verigakis , Software Engineer
Giorgos Verigakis is a consultant of Virtual Trip Ltd. During 2000 he was affiliated with Universitat Politecnica de Catalunya at Barcelona , Department of Computer Architecture. He has also worked at the Networks and Communications Center, University of Crete
He is experienced in C/C++, Java, Perl, Python programming and Unix OS deployment and administration. His interests include Systems Programming, Computer Security and Computer Networks .

Manos Dramitinos, Networks Engineer
Manos Dramitinos is a consultant of Virtual Trip Ltd. , with undergraduate and postgraduate degrees from the Computer Science Department of the University of Crete . He currently undertakes a PhD program at the Athens University of Economics & Business.
He has development experience and research interests in the areas of Electronic Business, Auctions , Software Agents , Distributed Systems , and Systems Design .

Artemios G. Voyiatzis Security Engineer
Artemios G. Voyiatzis is a consultant of Virtual Trip. He holds a B.Sc in Mathematics, a B.Sc and an M.Sc in Computer Science, all by University of Crete
He is currently a Ph.D student with the Department of Electrical and Computer Engineering, University of Patras
Artemios consults Virtual Trip in the areas of System and Network Security. He is an expert in smart card technology and specializes in cryptography

Antonios Danalis Security engineer
Antonios Danalis is a consultant of Virtual Trip. He holds a B.Sc in Physics, a B.Sc and an M.Sc in Computer Science, all from the University of Crete.
He is currenlty a Ph.d student with the department of Computer Science, University of Dellaware. Antonios is very experienced in systems programming and UNIX-like operating systems.
Antonios consults Virtual Trip in the areas of computer and network security and high performance computing.

Nikos Rizopoulos Software engineer
Nikos Rizopoulos is a consultant of Virtual Trip. He holds a B.Sc and an M.Sc in Computer Science from the University of Crete. He is currently a Ph.d student at the department of Computing, Imperial College, UK. His research field is Databases.
He is very experienced in Java-based systems and in conceptual modelling techniques.
Nikos consults Virtual Trip in the field of web information systems and high performance computing.

Panayiotis Kokkinakis Software engineer Panayiotis Kokkinakis studied Informatics and Telecommunications at the University of Athens. His areas of interest include distributed systems, object oriented programming and web technologies. Panayiotis is very experienced in Windows development environments.

Dimitris Koukis, Software Engineer
Dimitris Koukis studies Computer Science at the University of Crete. His areas of interest include systems programming and web information systems.
Dimitris has broad experience with ZOPE application server. His programming skills include C, C++, Java and Python .

Vangelis Michalopoulos, Software Engineer
Vangelis Michalopoulos studies Informatics and Telecommunications at the University of Athens. His areas of interest include object oriented programming, GUI design and e-services.
Vangelis is experienced in C, C++, Java, Perl and Python.

illusion members
Stavros Sahtouris
Graduate of the Department of Computer Science, University of Crete. Very Experienced in HTML and Javascript. His programming skills include C, C++, Java, Python
George Archon
Graduate of the Department of Computer Science, University of Crete. Very Experienced in XML, HTML and Javascript. His programming skills include C and C++ . He has expertise in a variety of computer graphics design tools .

Clients
Hellenic Organization of Telecommunications
Commercial Bank of Greece
Hellenic Ministry of Defense
SuperOnline.net
Swedish Institute of Computer Science
Hellenic National Meteorological Service
Antenna Group
Mills of Crete

Contact
Web :
http://www.vtrip-ltd.com
Greece:
E-mail: info@vtrip-ltd.com
Tel: + 30 81 0 391 949
Fax: + 30 810 391 906
UK:
E-mail: [email_address]
[email_address]

vtrip

by Dimitris G.E. Tsigos

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