Efficient time synchronized one-time password scheme to provide secure wake-up authentication on wireless sensor networks

In this paper we propose Time Synchronized One-Time-Password scheme to provide secure wake up authentication. The main constraint of wireless sensor networks is their limited power resource that prevents us from using radio transmission over the network to transfer the passwords. On the other hand computation power consumption is insignificant when compared to the costs associated with the power needed for transmitting the right set of keys. In addition to prevent adversaries from reading and following the timeline of the network, we propose to encrypt the tokens using symmetric encryption to prevent replay attacks.Comment: International Journal Of Advanced Smart Sensor Network Systems (IJASSN), Vol 3, No.1, January 2013 http://airccse.org/journal/ijassn/papers/3113ijassn01.pd

Security management for services that are integrated across enterprise boundaries

This thesis addresses the problem of security management for services that are integrated across enterprise boundaries, as typically found in multi-agency environments. We consider the multi-agency environment as a collaboration network. The Electronic Health Record is a good example of an application in the multi-agency service environment, as there are different authorities claiming rights to access the personal and medical data of a patient. In this thesis we use the Electronic Health Record as the main context. Policies are determined by security goals, goals in turn are determined by regulations and laws. In general goals can be subtle and difficult to formalise, especially across admin boundaries as with the Electronic Health Record. Security problems may result when designers attempt to apply general principles to cases that have subtleties in the full detail. It is vital to understand such subtleties if a robust solution is to be achieved Existing solutions are limited in that they tend only to deal with pre- determined goals and fail to address situations in which the goals need to be negotiated. The task-based approach seems well suited to addressing this. This work is structured in five parts. In the first part we review current declarations, legislation and regulations to bring together a global, European and national perspective for security in health services and we identify requirements. In the second part we investigate a proposed solution for security in the Health Service by examining the BMA (British Medical Association) model. The third part is a development of a novel task-based CTCP ICTRP model based on two linked protocols. The Collaboration Task Creation Protocol (CTCP) establishes a framework for handling a request for information and the Collaboration Task Runtime Protocol (CTRP) runs the request under the supervision of CTCP. In the fourth part we validate the model against the Data Protection Act and the Caldicott Principles and review for technical completeness and satisfaction of software engineering principles. Finally in the fifth part we apply the model to two case studies in the multi- agency environment a simple one (Dynamic Coalition) for illustration purposes and a more complex one (Electronic Health Record) for evaluating the model's coverage, neutrality and focus, and exception handling.EThOS - Electronic Theses Online ServiceArabian Gulf Oil Co.GBUnited Kingdo

A watermarking technique to improve the security level in face recognition systems: An experiment with Principal Component Analysis (PCA) for face recognition and Discrete Cosine Transform (DCT) for watermarking

This paper presents a proposal for a suitable and viable combination of a face recognition system and a watermarking system, with a watermarking technique that will ensure the authenticity of the data being transmitted in the face recognition system, which will then enhance its level of security. The proposed combination is a PCA-DCT system. © 2016 IEEE

Modelling Collaboration in Trusted Multi-agency Environment

Security problems in collaboration work are less well understood than those in the business and defence worlds. Earlier work in the medical area in Britain has highlighted some of the principles involved but has neglected some important areas. Most of the security models developed to date are inadequate in the collaboration area. We develop a perspective for policies and models that is task-based on a need-toknow basis. These policies can be represented as Petri nets to identify the functions and states involved. We have also developed a general architecture for a secure collaborative environment. An example is given of the application of our techniques to a problem involving negotiation, decision and agreement in a collaboration environment