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A method for improving password security and its encryption device

A password security and encryption device technology, applied in the field of network security, can solve problems such as passwords are easy to be stolen, and achieve the effects of high security, reduced risk of cracking, and simple methods

Active Publication Date: 2018-04-06
DMS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for improving password security, so as to solve the problem in the prior art that passwords encrypted by plaintext or MD5 are easy to be stolen

Method used

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  • A method for improving password security and its encryption device
  • A method for improving password security and its encryption device

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Embodiment Construction

[0027] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0028] refer to figure 1 As shown, a method for improving password security includes the following steps:

[0029] 101. Encryption operation: Encrypt the plaintext password through three encryption algorithms to obtain the encrypted password;

[0030] 102. Password combination: combine encrypted passwords in an orderly manner to obtain a combined password;

[0031] 103. Password clipping: orderly clipping the above combined passwords to obtain the final ciphertext.

[0032] Wherein, the encryption algorithm described in step 101 includes: MD5, RSA and DES, wherein the ciphertexts encrypted by MD5, RSA and DES are respectively M[1...m], R[1...r] and D[1...d ]. The password combination described in step 102 includes sequentially extracting the...

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PUM

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Abstract

The invention discloses a method for improving the password safety degree and an encryption device of the method. The method includes the following steps that encryption operation is conducted, clear-text passwords are encrypted through two or more encryption algorithms, and the encrypted passwords are obtained; password combination is conducted, the encrypted passwords are combined in order, and the combined passwords are obtained; the passwords are cut, the combined passwords are cut in order, and a final ciphertext is obtained. The method for improving the password safety degree and the encryption device of the method have the advantages that the method is simple, the safety of the final passwords is high by conducting encrypting, combining and cutting on the clear-text passwords through the multiple algorithms, and even if the final passwords are revealed, the risk that the passwords are cracked is also greatly lowered.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a method for improving password security and an encryption device thereof. Background technique [0002] With the development of the Internet, there are more and more websites, and most websites need to save user information. Therefore, these websites require users to register and log in. Due to the large and complex user data, general websites use databases to save user information, including user names and passwords. Generally, website designers will encrypt and store user passwords, because if passwords are stored in plain text, criminals can easily obtain user passwords as long as they gain control of the database. [0003] Most websites now use MD5 encryption to directly encrypt, because from an algorithmic point of view, MD5 is irreversible. But now there are already decryption methods on the Internet, which can effectively unlock many MD5 ciphertexts. The metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/06
Inventor 张伟
Owner DMS CORP