隐藏认证的有条件不经意传输

Hidden authentication conditional oblivious transfer

在不经意属性证书和隐藏证书的基础上提出了隐藏认证的有条件不经意传输,利用双线性对构造了一个具体方案,解决了不经意属性证书可能暴露接收者的某些敏感信息的问题.该方案有如下特点:只有持有特定属性证书的接收者才能打开与其属性值相对应的消息,而接收者不需要向发送者提供任何证书.发送者不能确定接收者是否能够打开消息也不能确定接受者打开的是哪个消息.

Hidden authentication conditional oblivious transfer based on oblivious attribute credentials （OACerts） and hidden credentials is proposed and a scheme based on bilinear pairing for implementing the idea is constructed which solves the problem that OACerts may exposure some sensitive information of the receiver. The scheme proposed has the property that only the receiver who has the required attribute credentials can open the message corresponding to its attribute value and that the receiver need not provide to the sender any credentials. The sender can not decide whether or not the receiver can open the messages and which message he can open.