【摘要】 穷举是猜测密码口令字最常用的方法,基于对概率和社会工程方面的分析,提出在穷举计算中减少口令字穷举数量的缩水算法,用以提高穷举的速度和缩短口令字的命中时间。以猜测MD5散列明文为例进行了缩水测试,比较了传统算法与使用缩水算法后不同的命中时间期望。证明了在满足算法适用的前提下,算法有明显缩水效果。算法不仅对穷举猜测工作具有指导意义,对穷举猜测软件、字典工具软件的开发均有所启示。更多还原

【Abstract】 The brute force is one of the commonly method for guess the password,which is used to analyse probability and social en-gineering.A shrink algorithm is presented to improve the speed and to reduce the aim time.For example,the algorithm in the MD5 Hash proclaimed in writing has a test.The tradition method to arrive the aim time compare with the shrink algorithm’s time,if the condition be satisfied the shrink algorithm method has a great effect.The shrink algorithm not only has direction meaning for brute force,but also avail in exploiture dictionary software and the brute force guess software.更多还原