Multi-level Security System for Image Transmission with Confidence Guarantee

Abstract

This paper presents multi-level security scheme for imagestransmission, by applying signature with encryption schemes.Signature is based on Discrete Cosine Transform (DCT) andEncodingusing Double Random Phase Encoding (DRPE). Theproposed multi-level scheme exploits the benefit of signature andencryption, which give strong images against image processingattacks. Several experiments are executed to test the performanceof the scheme. The proposed scheme increases the level ofsecurity for transmitting images and it has better immunity tonoise.