基于双线性映射的图像编辑授权与举证  

Image Editing Authorization and Proof from Bilinear Pairings

作　　者：陈海霞[1] 黄欣沂[1] 张福泰 宁建廷 宋永成 CHEN Hai-Xia;HUANG Xin-Yi;ZHANG Fu-Tai;NING Jian-Ting;SONG Yong-Cheng(Fujian Provincial Key Lab of Network Security&Cryptography,School of Computer and Cyber Security,Fujian Normal University,Fuzhou 350000;State Key Laboratory of Information Security,Institute of Information Engineering,Chinese Academy of Sciences,Beijing 100093;State Key Laboratory of Cryptology,Beijing 100878)

机构地区：[1]福建师范大学计算机与网络空间安全学院福建省网络安全与密码技术重点实验室,福州350000 [2]中国科学院信息工程研究所信息安全国家重点实验室,北京100093 [3]密码科学技术国家重点实验室,北京100878

出　　处：《计算机学报》2022年第11期2348-2362,共15页Chinese Journal of Computers

基　　金：国家自然科学基金(61902070,62032005,61972094,62172096)资助.

摘　　要：为有效鉴别与检测图像编辑行为是否经过授权,文章提出了基于公钥密码技术的图像编辑授权与举证方案.方案允许图像版权人对需授权图像进行初始认证并生成编辑许可证书;图像编辑人借助许可证书编辑图像并生成证据,以举证其对图像的编辑行为确实经过了授权;图像接收方(验证人)通过版权人和编辑人提供的证据验证图像编辑的有效性与合法性.文中方案可为图像编辑授权行为提供便捷的检测方法,便于图像接受方在发布图像之前,对图像使用是否已获得授权进行检测,从技术上规避侵权纠纷.方案基于双线性映射而构造,验证高效并具有可证明安全性.实验数据表明,虽然方案在密钥生成时计算开销较大,但证据的计算和验证仍然是高效实用的.通过与现有方案对比,在实现编辑授权的情况下,计算开销增加小于10%.基于公钥密码技术的图像认证方案设计有望成为除数字水印和感知哈希技术以外,又一服务于图像安全应用的新型通用设计,相关研究可为图像编辑授权应用提供有效解决方案.Each image is associated with its copyright.An image’s copyright is a type of property that gives its owner/creator the exclusive right to transmit,publish and use her work.Protected by public low,the copyright owner can define how an image can be used by signing a licensing agreement with users who wishes to use or edit the image for fee.However,it has been challenging work to detect if an image is edited by an authorized entity.Traditional methods,such as watermarks and perceptual hashes,can help detect if the image has been edited with permissible operations,but fail to verify the identity of its potential users.As a result,traditional methods cannot provide sufficient technical supports for editing authorization that is required by image copyright holders.In this paper,an authentication scheme constructed from public-key cryptographic primitives is proposed to provide efficient solution for image editing authorization.The proposed scheme allows an image owner/copyright-holder to specify editing rules and authenticate the original image technically.The authenticated image is transmitted to an image editor together with a certificate associated with some licensing behaviors.The certificate is computed by the image copyright holder and send to an authorized editor together with the image.After receiving an authorized image and its certificate,the image editor can process the image according to the certificate and compute supplementary proof to prove that the editing operation(s)are permissible and authorized.To avoid copyright infringement,an image receiver/verifier can verify the legality of the image with both of the evidence provided by the image holder and the editor.The new design helps the image receiver to identify if an image has been used legally before publishing it to keep away from disputation of copyrights.The scheme is constructed from bilinear pairings and provably secure.The security of these schemes is rigorously proved in the framework of provable security in cryptology.Different from those t

关 键 词：图像编辑授权 编辑举证 数据认证 双线性映射 可证明安全性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]