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authentication. An A-code is defined by a map that associates a pair formed by a message and a key
to a tag. A-codes linear in the keys have been studied for application to distributed authentication
schemes. In this paper, we address the dual question, namely the study of A-codes that are linear in the
messages. This is usually an undesired property, except in the context of network coding. Regarding
these A-codes, we derive some lower bounds on security parameters when key space is known. We
also show a lower bound on key size when security parameter values are given (with some special
properties) and construct some codes meeting the bound.
Ph.D. in Computer Science with specialization in at least one of the following (or related) areas: Networks/Servers, Computer and Network Security, Applied Cryptography, Computer Systems.
Excellent knowledge on web/application server customization
Strong understanding (server administration) of Linux OS, preferably CentOS or Ubuntu
Experience in Database Security and Cryptography Policies
Certifications: CISSP, CCSP, RHCE, CCNA, MCSA, Linux + Pro, CEH (Certified Ethical Hacker)
MySQL, PHP, Java
Web / SQL Load Balancing
Fluency in English
Game/Application Servers (Glassfish)
Proved experience in network/server management and administration
This a 3-year contract research position (full 36 months) with a salary of about 2100 Euros (gross). The project is Co-financed by the European Union and Greece - Operational Program \'Human Resources Development\' - NSFR 2007-2013 - European Social Fund.
Successful applicant will lead the security group with the role of organising/administrating the whole infrastructure required for supporting secure and fair electronic contests.
Contact: Send a cover letter and a detailed CV to: jobs (at) safemarket.gr
visual quality of VCS. At last, average contrast associated with variance is used as a new criterion to evaluate the visual quality of VCS.