一种新型的混合异构口令恢复系统  

A New Hybrid Heterogeneous Password Recovery System

作　　者：李斌 周清雷[2] 斯雪明[1] LI Bin;ZHOU Qing-Lei;SI Xue-Ming(State Key Laboratory of Mathematical Engineering and Advanced Computing,Information Engineering University,Zhengzhou 450001;School of Information Engineering,Zhengzhou University,Zhengzhou 450001)

机构地区：[1]信息工程大学数学工程与先进计算国家重点实验室,郑州450001 [2]郑州大学信息工程学院,郑州450001

出　　处：《计算机学报》2018年第12期2804-2822,共19页Chinese Journal of Computers

基　　金：国家重点研发计划项目(2016YFB0800100;2016YFB0800101);国家自然科学基金项目(61250007);国家"八六三"高技术研究发展计划项目基金(2009AA012201)资助~~

摘　　要：口令恢复作为电子取证、信息情报获取和犯罪记录审查的重要手段,是对互联网信息进行监控、维护网络信息安全的关键环节之一.传统的口令恢复系统主要以CPU和GPU为主,体系结构单一、破解效率低,无法满足用户的计算需求.由此,该文提出了一种新型的混合异构口令恢复系统.结合拟态计算的思想,通过CPU、GPU和拟态计算机搭建混合异构系统,建立多维可重构体系.并在拟态计算机上设计相关高速口令穷举算法、万兆网络字典传输协议和全流水可重构加密恢复算法,提高破解效率.同时,根据具体口令恢复应用的PMC(Processing-Memory-Communication)特征,动态调整系统结构,均衡向下分配口令空间,使整个系统高效地完成加密恢复任务.实验分析和结果表明,与传统CPU系统相比,该文系统在破解速度上提高18.84倍～84.94倍,在能效比上提高3.07倍～15.73倍,与传统口令穷举和字典破解模式相比,其恢复效率有所提升,且能较好地支持异构系统.Password recovery is an important means for electronic forensics, information acquisition and criminal record review. It is one of the key links to monitor and maintain the security of Internet information. The application of password recovery mainly includes password recovery of encrypted documents, operating systems, network protocols, disk encryption, database encryption, and network applications, covering all aspects of computer systems. The diversity of encryption algorithms, the timeliness of applications and the density of computation contribute to the high demand for computing capacity and solution of various encryption algorithms. However, traditional password recovery system is mainly based on CPU and GPU, and its architecture is simple, cracking efficiency is low, can’t meet the user’s computing needs. The CPU is limited by its processing architecture, and the computation speed of the encryption algorithm is low, while the GPU has a small local memory on the single core, and it is not very good for the encryption algorithm containing the S - box. Therefore, this paper presents a new hybrid heterogeneous password recovery system based on the mimic computing. Mimic computing aims at high-efficiency computing, with the features of resource allocation on-demand, variable structure, and flexible computing. Mimic computing can conveniently integrate various types of computing resources and storage resources into the architecture and form an organic entirety and use the aggregation of resources to deal with the different computing combination requirements contained in the application to achieve application-oriented high-performance computing. Combined with the idea of mimic computing, this system is constructed by CPU, GPU and mimic computer, to establish multi-dimensional reconfigurable system. It works in a software - hardware collaborative manner, makes full use of the versatility of CPU to handle task scheduling and password distribution, and uses of the parallelism and easy programming of GPU to rapi

关 键 词：拟态计算 拟态计算机 口令恢复 混台异构 口令穷举 字典传输 负载均衡 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]