Progressive Encryption and Controlled Access Scheme for JPEG 2000 Encoded Images

Progressive Encryption and Controlled Access Scheme for JPEG 2000 Encoded Images
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JPEG 2000 编码图像的渐进加密和受控访问方案

DOI:
10.1109/ispacs.2006.364785
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发表时间:
2006
期刊:
2006 International Symposium on Intelligent Signal Processing and Communications
影响因子:
--
通讯作者:
T. Yahagi
T. Yahagi
中科院分区:
--
文献类型:
--
作者:
A. Haggag;M. Ghoneim;Jianming Lu;T. Yahagi

文献摘要

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本文提出了一种针对JPEG2000编码图像的渐进加密和受控访问方案。我们的方案将Snow 2流密码应用于JPEG2000码流,保留了JPEG2000编码图像的大部分固有灵活性,并使不可信的中间网络代码转换器能够在不访问解密密钥的情况下对加密的JPEG2000图像进行下行。我们的方案还可以通过向用户授予不同级别的访问权限,使用不同的解密密钥来控制对不同图像分辨率或质量层的访问。我们的方案保留了加密的JPEG2000图像的大部分固有的灵活性、可伸缩性和可转码性,并且还保持了端到端的安全性。
In this paper we propose a progressive encryption and controlled access scheme for JPEG 2000 encoded images. Our scheme applies SNOW 2 stream cipher to JPEG 2000 codestreams in a way that preserves most of the inherent flexibility of JPEG 2000 encoded images and enables untrusted intermediate network transcoders to downstream an encrypted JPEG 2000 image without access to decryption keys. Our scheme can also control access to various image resolutions or quality layers, by granting users different levels of access, using different decryption keys. Our scheme preservers most of the inherent flexibility, scalability, and transcodability of encrypted JPEG 2000 images and also preserves end-to-end security.