Analytical method and system based on password coding rule

Abstract

The invention discloses an analytical method and system based on a password coding rule, the analytical method includes the steps that according to the rules of password, the password is excavated and processed, the association rule of password entry is obtained ; according to the commonly used coding rule of the password entry, iterative hierarchical analysis is performed to obtain a first commonly used coding rule; the association rule and the first commonly used coding rule are extracted and processed to obtain an easily decomposed coding rule. The using of the analytical method and system can expand a large number of commonly used passwords according to the password coding habit, the coverage is prioritized with existing library hit ratios,encryption passwords are cracked extremely fast, and the using of the analytical method and system can also expand the mining rules freely, expand the password library, and adjust the encoding rules automatically.

Description

technical field [0001] The invention relates to the technical field of security authentication, in particular to an analysis method and system based on password coding rules. Background technique [0002] Due to the digitization of criminal communication methods of criminals and dangerous elements, most of the text information used in interaction has been encrypted with passwords. Even if the security agency captures the criminal evidence file information, it cannot be decrypted and effective evidence information cannot be obtained. Therefore, it is necessary to be able to analyze the priority of the encoding rules of encrypted passwords, so as to greatly improve the speed of cracking encrypted file passwords, grasp the criminal evidence of criminals as soon as possible, and improve a strong guarantee for further solving cases. [0003] Most of the current encrypted file cracking uses common passwords for exhaustive cracking or uses existing password libraries for credential...

AI Technical Summary

Problems solved by technology

This method is limited by the number of commonly used passwords and passwords, and it is difficult to cover most of the passwords used for encryption on a large scale.

[0004] The password encoding rule analysis system uses data mining technology and its own rule analysis algorithm to conduct statistical analysis on the password database, extracts common password encoding rules, and improves the hit rate of passwords. Application system for password analysis

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