Technology of Information Security
|
App. Res. of Comp. Printed Article
Vol. 37, 2020 No. 4
1166-1169

Password cracking using dynamic dictionary and password selection

Zhang Xuewang1,2
Meng Lei1
Zhou Yin1
1. School of Software Engineering, Chongqing University of Posts & Telecommunications, Chongqing 400065, China
2. School of Microelectronics & Communication Engineering, Chongqing University, Chongqing 400044, China
DOI: 10.19734/j.issn.1001-3695.2018.09.0752

Abstract

Password has always been the one of the most important way for identity authentication. To meet the requirements of password policy and memory, users often combine personal information as their passwords, therefore, in order to investigate the proportion of such passwords. This paper used 4 real password sets leaked in 2011 as experimental materials, preset the combination structure and format of the password and used an application to calculate the proportion of the password combined by personal information. Experimental results show that the proportion of passwords combined with names, phone numbers, special dates and other information is about 12.41% to 25.53%. According to this rule, it proposed dynamic dictionary attack. An attacker can generate a dynamic dictionary and use it to crack the user password, after it obtains some of the user's personal information. At last, this paper discussed that users how to select their passwords to prevent an attacker from cracking their passwords through a dynamic dictionary.

Foundation Support

国家自然科学基金项目(61571032)
重庆市重点产业共性关键技术创新专项重大主题专项项目(cstc2017 zdcy-zdzxX0013)
重庆市教委人文社会科学科研重点项目(18SKGH033)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.09.0752
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 4
Section: Technology of Information Security
Pages: 1166-1169
Serial Number: 1001-3695(2020)04-045-1166-04

Publish History

[2020-04-05] Printed Article

Cite This Article

张学旺, 孟磊, 周印. 动态字典破解用户口令与安全口令选择 [J]. 计算机应用研究, 2020, 37 (4): 1166-1169. (Zhang Xuewang, Meng Lei, Zhou Yin. Password cracking using dynamic dictionary and password selection [J]. Application Research of Computers, 2020, 37 (4): 1166-1169. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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