Newly framed cryptosystem for color images: TJ-ACA, TJ-SCA and TJ-ACA in CBC mode image encrypting algorithms are discussed and security decisive tests are compared
Image Information Processing（2013）
摘要
Security of confidential information is always at threat. In present days safeguarding information, in form of images is a major-league and demanding process as compared to text encryption due to high correlation among pixels and huge information capacity. Due to this, novel cryptosystem TJ-ACA in CBC mode algorithm is proposed for encrypting images, in which shortcoming of TJ-ACA and TJ-SCA of not repelling differential attack is removed. In this paper, these three algorithms are briefly discussed and security decisive tests of all three cryptographic algorithms are calculated and compared. All algorithms work well for color images and lossless decrypted image is recovered. All the algorithms are private key algorithms and are also applicable for steganographed images.
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关键词
image colour analysis,private key cryptography,steganography,CBC mode image encryption algorithms,TJ-ACA cryptosystem,TJ-SCA cryptosystem,cipher-block chaining mode,color images,confidential information security,image pixels,information capacity,lossless decrypted image,private key algorithms,security decisive tests,steganographed images,2D fast Fourier transform,3D plot,CBC (cipher-block chaining) mode,TJ-ACA,TJ-SCA,ikeda mapping,
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