201721440029 third experiment

Chinese People's Public Security University

Chinese people’ public security university

Network Warfare Technology

experimental report

Third experiment

Password cracking techniques

student name	Chen Ziwei
grade	2017
District Team	Four area teams
mentor	Your opinion

Institute of Technology and Information Network Security

2016 Nian 11 Yue 7 Ri

Master experimental task

2016-2017 school year, Di Yi semester

First, the purpose of the experiment

1 . Deepen and digest this course lectures, review what they have learned through the Internet search techniques, methods and techniques;

2 . Become familiar with commonly used encryption algorithm, encryption and decryption tools, tools and other Internet resources to crack, given the ciphertext, encrypted file system password to crack;

3 . The purpose of the consolidation of curriculum knowledge and practical application.

Second, the experimental requirements

1 . Carefully read the contents of each experiment, we need to capture the title, to be clear screenshots and annotate screenshots and descriptions.

2 . Documentation Requirements clear structure, graphic expression accurate labeling specifications. Reasoning was objective, reasonable and logical.

3 . Software tools can be used john the ripper or Hydra , dictionary generator, pwdump7 like.

4 . After the experiment, to retain electronic documents.

Third, the experimental procedures

1 . ready

Experimental preparation well in advance, should learn more about the purpose of the experiment, test requirements and test content before the experiment, familiar with the software tools and ready with a good experiment, in accordance with the requirements of experimental content and experimental content ready ahead of time.

2 . lab environment

Describes the hardware and software environment used in the experiment (including a variety of software tools);

Boot and start the software office2003 or 2007 , browser, encryption and decryption software.

3 . experiment procedure

1 ) Start the system and start-up tool environment.

2 ) realization of experimental content using software tools.

4 . experimental report

Write lab reports in accordance with the standard requirements of the test report format. The document prepared in accordance with the format template embedded test report document, the document written in accordance with the provisions of the written format, the form must be said that the graphics have a table Illustrated.

Tool here (the school site visits)

http://121.194.212.168/eol/homepage/course/layout/page/index.jsp?courseId=14280

The left teaching materials, tools and sample in

Tasks (a)

1. Please decrypt the following string 35556C826BF3ADDFA2BB0F86E0819A6C . (Screenshot attached)

This seems to be a lyric, please tell me the song decrypted.

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

Task (b)

windows system password cracking

1. In the windows xp use system net user gao gao123 / add to add users gao , password gao123 account (user name and password can set their own); and use the net user command to add a user to determine success.