【摘要】 延迟函数是指函数的输出需要一定时间,但计算复杂度又不同于密码难度的一类函数。给出了一种基于hash碰撞的延迟函数的实现方法,以此方法实现的延迟函数,具有安全高效,延迟度可控的特点,可用于电子彩票中奖数字的产生,对于电子彩票方案的设计具有重要的意义。更多还原

【Abstract】 Delaying function is moderately hard to compute ,as opposed to easy or cryptographically hard. The calculation time takes several hours, which is used in generating wining number in e-lottery scheme. In this paper, a new efficient delaying function on the basis of hash collusion is proposed,the hash function is designed with triple data encryption standard.更多还原