Energy-Efficient Design of the Secure Better Portable Graphics Compression Architecture for Trusted Image Communication in the IoT

Energy consumption has become a major concern in portable applications. This paper proposes an energy-efficient design of the Secure Better Portable Graphics Compression (SBPG) Architecture. The architecture proposed in this paper is suitable for imaging in the Internet of Things (IoT) as the main concentration is on the energy efficiency. The novel contributions of this paper are divided into two parts. One is the energy efficient SBPG architecture, which offers encryption and watermarking, a double layer protection to address most of the issues related to privacy, security and digital rights management. The other novel contribution is the Secure Digital Camera integrated with the SBPG architecture. The combination of these two gives the best quality imaging in an energy efficient way without compromising security. To estimate the power in the proposed architecture a pattern-independent method has been adopted where many simulations run in the design with different inputs and the average of the power dissipated is considered. The current and voltage values are considered from the output of the design, in order to calculate power. This is achieved with the help of sensor and power blocks available in Simulink. From the results obtained, it was observed that with the same peak signal to noise ratio, the power consumption is substantially reduced, up to 19%.