Image Cryptography by TJ-SCA: Supplementary Cryptographic Algorithm for Color Images
Taranjit Kaur, Reecha Sharma · 2013
In this paper extended version of TJ-ACA: advanced cryptographic algorithm is proposed named as TJ-SCA: supplementary cryptographic algorithm for color images through which we get white blank encrypted image (no preview is available) in frequency domain, which makes brute force and various other attacks futile. Thus, maintaining the confidentiality of original images. In this proposed algorithm, 2-D fast Fourier transform, ikeda mapping and various methods are used to get highly secure image. Through, this algorithm lossless decryption is possible and is also applicable for images on which steganography has been applied.