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Password encryption method for social website

An encryption method and technology for social networking sites, applied in the field of password encryption, can solve problems such as the reduction of user password security, and achieve the effects of increasing difficulty, reducing logic, and increasing security

Inactive Publication Date: 2012-10-03
SHANGHAI PORT BUSINESS CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although encryption using MD5 method is irreversible, hackers now have a large amount of MD5 original text / cipher text comparison database, which can quickly decipher the MD5 cipher text of commonly used passwords, and the passwords of users in social networking sites are basically common passwords. The security of user passwords is greatly reduced

Method used

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  • Password encryption method for social website

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Experimental program
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Effect test

Embodiment 1

[0036] A password encryption method used by social networking sites, such as figure 1 shown, including the following steps:

[0037] A. The client communicates with the server to generate a key X, and then the client uses the key X and the password entered by the user to generate an additional key Y, and uses the key X and the additional key Y to scramble the password entered by the user to generate Confused ciphertext a;

[0038] B. The client performs nonlinear and irreversible encryption on the disordered ciphertext a for the first time to generate intermediate ciphertext b;

[0039] C. The client performs a second non-linear and irreversible encryption on the intermediate ciphertext b to generate the final ciphertext c;

[0040] D. The client sends the key X, the additional key Y and the final ciphertext c to the server, and the server stores the key X, the additional key Y and the final ciphertext c.

[0041] Step A is specifically:

[0042] After the client receives ...

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PUM

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Abstract

The invention discloses a password encryption method for a social website. A password character string is subjected to strong disturbance before the conventional message-digest algorithm 5 (MD5) encryption is performed, so that the logicality of the encrypted character string is greatly reduced. Crypt encryption processing is performed before MD5 encryption is performed, so that the original text subjected to MD5 encryption is a character string without logical relationship. Hacker needs brand new original text / ciphertext control database which does not exist at present and has huge data to decipher the ciphertext, so the difficulty of ciphertext decipher by the hacker is greatly increased and the safety of the password is improved. The encryption flow is completely performed on the client side and the password character string input by a user does not pass through a server completely, therefore, even if the hacker breaks the firewall of the server, the hacker can only find the secret key and the ciphertext and cannot find the trace of the password character string, and the safety of the password is improved.

Description

technical field [0001] The invention relates to a password encryption method, in particular to a password encryption method for social networking sites. Background technique [0002] The full name of MD5 is Message-Digest Algorithm 5, which was invented by MIT's Computer Science Laboratory and RSA Data Security Inc in the early 1990s. MD5 transforms a string of any length into a 128-bit large integer, and is an irreversible string conversion method. MD5 encryption module is a module with MD5 encryption function. [0003] Existing social networking sites usually encrypt passwords directly using the MD5 method. Although encryption using MD5 method is irreversible, hackers now have a large amount of MD5 original text / cipher text comparison database, which can quickly decipher the MD5 cipher text of commonly used passwords, and the passwords of users in social networking sites are basically common passwords. The security of the user password is greatly reduced. Contents of ...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L29/06
Inventor 陈佳利
Owner SHANGHAI PORT BUSINESS CONSULTING
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