【摘要】 介绍了欺骗免疫秘密共享函数的密码学模型,运用构造单射的方法构造了一类形如f(x,y)=x.π(y)的新的欺骗免疫秘密共享函数。同时给出了二次布尔函数为欺骗免疫的充要条件的结论,此结论是Josef Pieprzyk关于二次布尔函数为欺骗免疫的条件结论的改进和提升。更多还原

【Abstract】 The cryptographic model of cheating immune secret sharing function is introduced.By using injective functions,it proposes a new method for the construction of cheating-immune secret sharing which has the form f(x,y)=x·π(y).It gives a sufficient and necessary condition for a quadratic Boolean function to be cheating-immune.It improves the conclusions given by Josef Pieprzyk.更多还原