适用于数字对象的保密比较协议

A private comparing protocol for digital objects

分析了现有保密比较协议无法使用于不确定数字对象比较的原因,用随机构造单向散列函数的方法设计了对不确定具体范围的数字对象进行比较的一种多方保密计算方案,协议能以零泄漏的方式快速比较两个数字对象是否相同.用广泛接受的模拟范例证明了方案的保密性.

Analyzed the reason why existing private comparing protocols cannot be used to compare two non-deterministic digital objects, a secure multiparty computation protocol is designed by randomly constructing one-way hash function, which can be used to compare two non-deterministic digital objects. This scheme can be used to compare whether two digital objects are the same with zero information leaking. The well accepted simulation paradigm shows that the scheme is private.