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This paper presents a framework for monitoring internet traffic to detect the presence of hidden information in images that were subjected to steganography. The framework of steganalysis environment comprises three stages: pre-processing, statistical and distortion. The environment enables efficient steganalysis of internet traffic and gives an indication of the robustness of the various steganography techniques used in the study. An extensive set of cover images was used to set the detection thresholds. The impact of distortion, applied to destroy hidden information, was also assessed by calculating the cover image signal to noise ratio. The effectiveness of the complete environment as an integrated steganalysis system was evaluated by injecting a wide variety of clean as well as stegoed images that were not used during threshold setting. The results indicate that the integrated environment achieves a high detection rate with acceptable levels of false positive and false negative detections.

Smart homes are ones that have an intelligent environment that enables dynamic configuration of its devices as well as interaction with its occupants, be it while they are inside the home or remotely while outside. This paper outlines the major technologies that support the realisation of smart homes. It describes the complete architecture and design of a prototype smart home system that integrates a variety of wireless information and communication technologies with a variety of sensors and appliances. The prototype system enables an authorised user to monitor and control home devices equipped with a smart interface structure using a mobile phone. The system is embedded with authentication and verification mechanisms that provide secure end-to-end processing. The system is scalable through a flexible architecture that easily expands the portfolio of devices to be monitored and controlled.

Smart homes are intelligent environments that interact with their occupants in ways that improve their lives. This paper presents the ubiquitous pervasive technologies that will need to be integrated to realise the future vision of smart homes that have the intelligence to anticipate, predict and take decisions in a virtually autonomous manner. It also presents some of the major application areas that will benefit from the realisation of smart homes. It then discusses some of the challenges that need to be overcome in order for smart homes to become a reality and find acceptance from people across all sectors of the society.

This paper presents the design and implementation of a prototype secure system to monitor patients in hospitals. The system also enables remote access to the patient database by the appropriate health professional. This system integrates various wireless technologies in a secure framework. The system enables the supervising health professional to set various health parameters to be monitored. The prototype system consists of three modules: the sensing side where it captures reading from sensors and sends them to the second module which is the server. The server sends SMS notification to the supervising doctor in case of abnormal readings. The system provides many services: data management for patient and doctors through graphical user interface, SMS notifications in case of critical condition, patient monitoring by capturing readings from sensor side, sensor side configuration and patient data enquiry using a mobile handset. All these services are done in secure environment.