基于RSA公钥体制的非对称数字指纹协议  

Asymmetric Fingerprinting Protocol Based on RSA Public Key System

作　　者：谢建全[1,2] 黄大足[1,2] 谢勍[1] 

机构地区：[1]湖南财政经济学院信息安全研究所,长沙410205 [2]中南大学信息科学与工程学院,长沙410083

出　　处：《小型微型计算机系统》2013年第11期2542-2545,共4页Journal of Chinese Computer Systems

基　　金：湖南省教育科学"十二五"规划课题项目(XJK011BXJ011)资助;湖南省科技计划项目(2012GK3064)资助;湖南省重点建设学科项目资助

摘　　要：基于RSA公钥体制提出一种数字作品买卖协议,在该协议中用户首先根据一定的约束条件,产生用来标识自己身份的一串随机变量,用公钥加密后传给发行商,发行商置乱用户发过来的数据,并与用用户的公钥加密后的数字作品进行相应的运算后发给用户,用户用私钥解密得到含指纹的数字作品,但无法删除指纹.发行商无法得到含指纹的数字作品,但可在非法复制的数字作品中判断是否含有指纹信息,因此可对非法复制品进行盗版追踪和指控,同时可以防止发行商对合法用户的诬陷.在数字指纹鉴定过程中无需第三方参与,并且能有效防止在鉴定过程中可能出现的作伪现象.A kind of digital work commerce protocol is proposed based on RSA public key system. From the protocol, the user needs to transfer a random variables string to the publisher after it encrypted by public key, where the random variables, as a mark of identi- ty, are generated under some certain constraint conditions. First be scrambled, and then be calculated with the digital work that en- crypted with the user＇s public key, the data transferred from the user will be sent to the user by the publisher. The user can obtain a digital work with fingerprint after decryption, but the fingerprint cannot be deleted. While the publisher cannot obtain this digital work, but can judge whether there exists fingerprint information in illegal copied digital work. Hence this can be utilized in tracing and accusing the illegal piracy. Meanwhile, it can also protect legal user from framed by publishers. The third party is avoided in dig-ital fingerprint identification with better performance in preventing forgery in the procedure.

关 键 词：版权保护 数字指纹 非对称指纹 指纹协议 盗版追踪 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]