基于ECC签名的接入控制不经意传输方案  

Oblivious Transfer Scheme of Access Control Based on ECC Signature

作　　者：谢娟[1] 朱艳琴[1,2] 罗喜召[1] 

机构地区：[1]苏州大学计算机科学与技术学院,苏州215006 [2]江苏省计算机信息处理技术重点实验室,苏州215006

出　　处：《计算机工程》2010年第16期140-142,共3页Computer Engineering

基　　金：国家自然科学基金资助项目(60673041);江苏省高校自然科学基金资助项目(08KJB520011);苏州市应用基础研究计划基金资助项目(SYJG09024)

摘　　要：在椭圆曲线数字签名和不经意的基于签名的电子信封基础上,提出一种增强的不经意传输协议,解决不经意传输的接入控制问题。该方案除了具有一般不经意传输的特性外,还具有只有持有权威机构发放签名的接收者才能打开密文,且发送者既不能确定接收者选择了哪条消息,又不能确定其是否为授权用户。与现有的基于有限域上离散对数问题的不经意传输协议相比,该方案具有数据量更小、计算速度更快、开销更小等优点,具有广泛的应用领域。On the basis of elliptic curve digital signature and Oblivious Signature-Based Envelope（OSBE）,an enhanced oblivious transfer scheme is proposed which solves the access control problem for an oblivious transfer protocol.In addition to have the properties of oblivious transfer,the scheme also has the following properties： the receiver who can decrypt the message if and only if he has the trusted third party’s signature,and the sender neither decides which message the receiver acquires nor decides whether the receiver is an authorized user or not.The scheme has less data,faster computation speed and less consumption than others based on Finite Field Discrete Logarithm Problem（FFDLP）,it can be widely applied in many fields.

关 键 词：椭圆曲线数字签名 不经意的基于签名的电子信封 不经意传输 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]