Phase-Image-Encryption-Based Elliptic Curve and Double-Random-Phase Encoding

Abstract

In this paper, we proposed an enhanced asymmetric cryptosystem scheme for image encryption using a combination of Elliptic Curve and Fourier transformations. Our proposed encryption and decryption process is highly secure with a smaller key size compared to other schemes due to the use of Elliptic Curve Cryptography. The experimental results prove that the image-encryption scheme proposed in this research is effective and has strong anti-attack and key sensitivity. Computer-based simulations have been performed for this scheme to complete the measurable examination utilizing histograms plots, and correlation distribution of adjacent pixels. Moreover, the security of this encryption scheme relies on Elliptic Curve Cryptography, which has high security. The validation of the scheme is shown using a grayscale image and all the computations are performed in MATLAB (R2021a). The security against several attacks like noise is also shown.

Keywords

• Elliptic Curve Cryptography
• image encryption
• Fourier transformation
• encoding
• security