| 基于Shamir门限秘密分享的图像可视加密算法 |
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| 作者姓名： | 谭亦夫 李子臣 |
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| 作者单位： | 北京印刷学院信息工程学院 北京102600 |
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| 基金项目： | 国家自然科学基金资助项目(61370188);北京市教委科研计划基金资助项目(KM201610015002);北京市教委科研计划基金资助项目(KM201510015009);北京市教委科研计划基金资助项目(KZ201510015015);北京市教委科研计划基金资助项目(KZ201710015010);北京市高校改进方案基金资助项目(PXM2017_014223_000063);北京印刷学院校级基金资助项目(Ec201803Ed201802Ea201806) |
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| 摘 要： | 采用Shamir门限秘密分享方案，提出一种带有认证功能的图像可视加密算法。该算法主要思想是，先将二值秘密图像分块得到数据，然后使用Shamir的门限秘密共享方案得到子秘密数据，同时用SM2签名算法对秘密图像进行签名，并将分享数据和签名信息嵌入载体图像。还原时需要指定张数的子秘密图像进行信息的提取、还原与认证。仿真实验结果表明，该秘密图像分享方案提高了秘密图像存储与传输的安全性。
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| 关 键 词： | 秘密共享 SM2签名 数字水印 二值图 |
Image visualization encryption algorithm based on Shamir threshold secret key sharing |
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| Authors: | Yifu TAN Zichen LI |
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| Affiliation: | School of Information Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China |
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| Abstract: | An image visualization encryption algorithm with authentication function by using Shamir scheme was proposed.The main idea of this algorithm is to obtain the data by segmenting the binary secret image into blocks.Then,Shamir scheme was used to obtain the sub-secret data and simultaneously sign the secret image with the SM2 signature algorithm.And it would embed the shared data and signature information into carrier images.When the restoration is required,a specified number of sub-secret images are required for information extraction,restoration and authentication.The simulation experiment of the scheme shows that the secret image sharing scheme improves the security of secret image storage and transmission. |
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| Keywords: | secret sharing SM2 signature digital watermarking binary image |
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