基于集合调和的远程口令恢复方法

Remote password recovery using set reconciliation

基于对多项式编码的集合调和方法的研究,提出一种简单的远程口令恢复新方法。其利用容易记忆的低熵口令集经hash变换后加密并存储高熵口令;利用集合调和多项式容错求解得到原始的低熵口令集,从而恢复高熵口令。同时,提供了两个安全的远程口令恢复协议。分析表明,此方法可以安全广泛地应用到远程应用系统中。

Proposed a simple and novel scheme for remote password recovery based on set reconciliation. Used the set of low entropy passwords to recover a high entropy password. Accomplished the random map of password set using standard hash function. And symmetric cryptography essentially acted as high entropy password storing. Demonstrated two security protocols how to realize the process of password recovery between the end user Alice and the service provider Trent.