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Password strength evaluation method based on personal information

An evaluation method and password technology, applied in the field of information security, can solve the problems of increasing user information, leaking personal assets loss, inability to evaluate the results of weak passwords, etc., to achieve the effect of improving security and improving accuracy

Active Publication Date: 2017-07-07
EAST CHINA NORMAL UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, if the attacker conducts a targeted password guessing attack based on the user's password construction behavior, that is, using a targeted password guessing attack based on the user's personal information, the risk of user information leakage and personal asset loss will be greatly increased. risk
The current mainstream password strength testers are still unable to give accurate evaluation results for weak passwords in this situation

Method used

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  • Password strength evaluation method based on personal information
  • Password strength evaluation method based on personal information

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Experimental program
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Embodiment

[0030] Such as figure 1 As shown, the password strength evaluation method based on personal information is divided into three stages: specifically:

[0031] Personal information collection stage: When the user registers for the website service, extract the personal information impact factor field that may be used to construct the user password.

[0032] Classification and labeling processing stage: respectively classify the extracted password construction influence factor fields and label the influence factor fields according to the actual transformation form;

[0033] Password strength value calculation stage: when the user enters the password, calculate the coverage value of the influence factor in the user's constructed password according to the extracted and collected user information influence factor, and combine the coverage value with the heuristic detection method or pattern detection method to calculate Export order strength value. The target site chooses itself to ...

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Abstract

The invention discloses a password strength evaluation method based on personal information. The method comprises the following steps that: when a user registers website service, collecting the influence factor field of personal information used for user password construction; independently carrying out classification on the influence factor field, and carrying out tagging processing on the influence factor field according to a practical transformation form; when the user inputs the password, according to an extracted and collected user information influence factor, calculating a coverage degree value which contains the personal information in the influence factor field in the password constructed by a current user, and combining the coverage value with a traditional heuristic method and pattern detection method to calculate a password strength value; and selecting a maximum threshold value which permits to contain the personal identification information in an acceptance password by a target website as an acceptance measurement index of the password strength. The invention puts forward the password strength evaluation method in which a personal identification information measurement factor is added. The method has the characteristics that the password strength value is instantly and effectively fed back, and an influence factor is plug and play and can be easily selected, and a user is assisted in selecting the password with a higher safety degree.

Description

technical field [0001] The invention belongs to the technical field of information security, in particular to a user password strength evaluation method based on personal information. Background technique [0002] With the development of the Internet and the continuous advancement of the informatization process, personal daily life is continuously networked, and assets are continuously digitized. Identity authentication has become a basic means to ensure user information security. Due to the characteristics of simplicity, ease of use, low cost, and ease of deployment, text passwords have gradually become the most widely used identity authentication method in ensuring the security of information systems. But at the same time, due to the user's need for memorability, the password is not composed of random characters in the actual sense, but is directly related to the internal motivation and external environment of the user's behavior. Therefore, users often choose weak passwo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/46
CPCG06F21/46
Inventor 何道敬叶冉
Owner EAST CHINA NORMAL UNIV
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