Image security using quantum Rivest-Shamir-Adleman cryptosystem algorithm and digital watermarking
Hend A. Elsayed, Yasir Khalid Jadaan, Shawkat Kamal Guirguis · 2016
Authentication and integrity are very essential security requirements for a secure transaction. To achieve these security goals, we use a combined technology of Rivest-Shamir-Adleman cryptosystem algorithm and digital watermarking. This work proposes the Rivest-Shamir-Adleman cryptosystem algorithm to work with quantum computing idea as simulation to encrypt the image and the goal of the quantum idea is to speed the process of the encryption. After that, the encrypted image is embedded in the cover image using its least significant bit. Digital watermarking is the process of embedding information into a digital signal. This paper uses the hybrid discrete wavelet transform and singular value decomposition algorithms for embedding and extracting process of digital watermarking. This scheme favorably preserves the quality for both the sender and receiver. The experimental results showed the efficiency of the proposed system in terms of time, integrity, and the authentication. The results showed the accelerate of the encryption process using RSA with quantum ideas compared with using RSA only, the results showed the histogram for both the sender or decrypted image and the receiver or the watermark image is the same. From the histogram diagrams, it is observed that they are quite similar and the difference is insignificant which the human eye cannot easily differentiate. Also the results showed the correlation coefficient between the original watermark and received watermark. The correlation coefficient has the value one if the two images are absolutely identical, has the value zero if the two images are completely uncorrelated. From the correlation coefficient results, it is observed that they are nearly one. This model maintains the image quality is good.