CHAOTIC IMAGE ENCRYPTION ON CPU

Abstract

Several Chaotic Image Encryption algorithms have been proposed recently due to increase in the need of secure image/multimedia transmissions over public network. Even though chaotic image encryption algorithms perform better compared to normal cryptographic encryption techniques but still most of the algorithms requires considerable amount of time which would increase the overall processing time. In this research we concentrated to achieve speed-up of chaotic encryption algorithm. We have shown a CUDA-based implementation of chaotic image encryption algorithm using logistic map with NVIDIA's Tesla C2050 GPU device. Compared to .:.original implementation on CPU, CUDA based implementation works has shown significant amount of improvement in terms of operational speed up.