文章基本信息

标题：Reducing Decryption Time of NTLM Hash Using Rainbow Tables
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作者：Priya Sharma ; Gurdev Singh
期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2014
卷号：3
期号：9
页码：3041-3046
出版社：Shri Pannalal Research Institute of Technolgy
摘要：The majority of computer systems are still protected primarily with a user name and password, and many users employ the same password on multiple systems.Using passwords and password management routines for giving access rights is a technique that is as quite old. The use of such weak hash functions in the process of user authentication in these operating systems poses a significant threat to an organization's security.Moreover, the recent use of Graphics Processing Unit (GPU) in high-performance servers is changing this trend.We want to devise an experiment where we will test the strength of a selection of passwords when converted to LM, NT and NTLMv2, respectively, using commonly available tools. This is to show that a large number of passwords can be cracked within working days, and that all LM hash passwords can be recovered .
关键词：RainbowTable ;Hash Generation ; ;Frequency Distribution Algorithm