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Unrevealed Patterns in Password Databases Part One: Analyses of Cleartext Passwords

机译：密码数据库中未公开的模式第一部分：明文密码分析

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摘要

In this paper we present a regression based analyses of clear-text passwords moving towards an efficient password cracking methodology. Hundreds of available databases were examined and it was observed that they had similar behavior regardless of their size: password length distribution, entropy, letter frequencies form similar characteristics in each database. Exploiting these characteristics a huge amount of cleartext passwords were analyzed in order to be able to design more sophisticated brute-force attack methods. New patterns are exposed by analyzing millions of cleartext passwords.
机译：在本文中，我们提出了基于明文密码的基于回归的分析，正朝着有效的密码破解方法发展。检查了数百个可用的数据库，发现它们的大小无关，都具有相似的行为：密码长度分布，熵，字母频率在每个数据库中形成相似的特征。利用这些特征，分析了大量明文密码，以便能够设计更复杂的蛮力攻击方法。通过分析数百万个明文密码来揭示新的模式。

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  • 来源
  • 会议地点 Trondheium(NO)
  • 作者

    Norbert Tihanyi; Attila Kovacs; Gergely Vargha; Adam Lenart;

  • 作者单位

    HUNGUARD Ltd., Kekgolyo u. 6, Budapest 1123, Hungary,Department of Computer Algebra, Eoetvoes Lorand University, Pazmany Peter setany 1/C, Budapest 1117, Hungary,National Security Authority of Hungary, Cyber Defence Management Authority, Budapest, Hungary;

    Department of Computer Algebra, Eoetvoes Lorand University, Pazmany Peter setany 1/C, Budapest 1117, Hungary;

    HUNGUARD Ltd., Kekgolyo u. 6, Budapest 1123, Hungary,National Security Authority of Hungary, Cyber Defence Management Authority, Budapest, Hungary;

    HUNGUARD Ltd., Kekgolyo u. 6, Budapest 1123, Hungary,National Security Authority of Hungary, Cyber Defence Management Authority, Budapest, Hungary;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Password analyzing; Patterns; Cracking method;

    机译：密码分析；模式；破解方法;

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