| 同态域JPEG可逆数据隐藏 |
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| 引用本文： | 代舒,辛昕,钱振兴.同态域JPEG可逆数据隐藏[J].电子测量技术,2016,39(11):89-93. |
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| 作者姓名： | 代舒 辛昕 钱振兴 |
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| 作者单位： | 上海大学通信与信息工程学院 上海 200444 |
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| 基金项目： | 国家自然科学基金(61572308，U1536108)，上海市青年科技启明星人才计划基金(14QA1401900) |
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| 摘 要： | 提出了两种基于同态加密的JPEG可逆数据隐藏方案，可分离方案和不可分离方案。在不可分离方案中，数据的提取是在明文中进行的，可以同时进行数据提取和图像恢复。在可分离方案中，数据提取是在密文中进行的，要先进行数据提取，再对图像密文解密并恢复图像。两种方案中数据提取的准确率均为100％，同时针对同态加密算法时间成本较高的问题，两种方案在对JPEG图像的DCT系数加密之前，先进行整合，使多个系数合并为一个系数，从而节省了一定程度的时间成本。
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| 关 键 词： | 不可分离数据隐藏 可分离数据隐藏 同态加密 |
Reversible data hiding in JEPG image based on homomorphic encryption |
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| Dai Shu,Xin Xin and Qian Zhenxing.Reversible data hiding in JEPG image based on homomorphic encryption[J].Electronic Measurement Technology,2016,39(11):89-93. |
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| Authors: | Dai Shu Xin Xin and Qian Zhenxing |
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| Affiliation: | School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China,School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China and School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China |
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| Abstract: | This paper proposes two reversibledata hiding in JEPG imagebased on homomorphic encryptionschemes :inseparable and separablereversible data hiding .In the inseparable scheme ,data extraction can only be done in the plain‐text ,and image recovery is performed simultaneously .In the separable scheme ,the data can be extracted directly in the cipher‐text ,and the image recovery and decryption is conducted after data extraction .The accuracies ofthe extraction hidden data of the two schemesare both 100% .At the same time ,for the higher time costs of homomorphic encryption ,the two schemesmerge several factors into one before encryption to save the time to some degree . |
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| Keywords: | inseparable data hiding separable data hiding homomorphic encryption |
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