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Volume: 3 | Article ID: art00007
A Selective Encryption for Heterogenous Color JPEG Images Based on VLC and AES Stream Cipher
  DOI :  10.2352/CGIV.2006.3.1.art00007  Published OnlineJanuary 2006

Nowadays, the most important engine to provide confidentiality is encryption. Therefore, the classical and modern ciphers are not suitable for huge quantity of data in real-time environment. Selective encryption (SE) is an approach to encode only the most important portion of the data in order to provide a proportional privacy and to reduce computational requirements. The objective of our work is to leave free the low-resolution image and give full-resolution access only for authorized person. This approach is based on AES stream ciphering using VLC (Variable Length Coding) of the Huffman's vector. The proposed scheme allows decryption of a specific region of image and result in a significant reduction in encrypting and decrypting processing time. It also provides a constant bit rate and keep the JPEG bit-stream compliance. We have illustrated our method on a digital painting of the Louvre Museum of Paris, France.

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J.M. Rodrigues, W. Puech, A.G. Bors, "A Selective Encryption for Heterogenous Color JPEG Images Based on VLC and AES Stream Cipherin Proc. IS&T CGIV 2006 3rd European Conf. on Colour in Graphics, Imaging, and Vision,  2006,  pp 34 - 39,

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