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User dependent cryptography for security in future mobile telecommunication systems

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3 Author(s)
Ahmad Sabouri ; Information Networking Institute, Carnegie Mellon University, Pittsburgh, PA, USA ; Nikos Komninos ; Christos Douligeris

In this paper we propose a user dependent scheme for enhancing security of the transmitted content in the future telecommunication systems. In order to achieve a higher level of security we introduce a scheme where the user identity gets involved in the encryption/decryption processes using an additional component for the block cipher which represents the user's behavioural model. Applying such a scheme, in addition to introducing more difficulties to an attacker due to the user dependency of the cipher algorithm, gives the mobile operator the opportunity to ensure that a licensed service has not been shared by the customer. To show the feasibility of our approach we use the concept of invertible Boolean functions as an example.

Published in:

Telecommunications (ICT), 2011 18th International Conference on

Date of Conference:

8-11 May 2011