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Dynamic password generating method

A technology of dynamic password and dynamic token, applied in the field of network security, can solve problems such as low security

Inactive Publication Date: 2016-05-04
BEIJING HAITAI FANGYUAN HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing mobile phone tokens directly store the master key file in the mobile phone, which has low security

Method used

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  • Dynamic password generating method

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Embodiment Construction

[0028] In order to overcome the defects existing in the prior art, the present invention provides a dynamic password generation method, which obtains the user's unique biological feature model, uses this feature model as the basic data, and generates the unique sequence corresponding to the feature model through an encryption algorithm, as The temporary seed corresponding to this user; at the same time, the authentication system sends a dynamic activation code, and the mobile phone token uses the dynamic activation code to verify the authenticity of the dynamic activation code using an encryption algorithm. If it is true, the temporary seed is transformed at the same time to obtain the operation seed. The seed participates in the calculation of the password, and the calculation result is returned to the token authentication system for authentication, and a dynamic password is generated if it passes.

[0029] Such as figure 1 As shown, the generation method of the dynamic passw...

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Abstract

The invention provides a dynamic password generating method which comprises the steps that: A, a client acquires biological characteristics of a user; B, a dynamic token authentication system server acquires the biological characteristics, carries out encryption to generate a temporary seed, loads an activation code to the temporary seed and sends the temporary seed to the client; C, the client, according to the activation code, carries out encryption operation on the temporary seed to obtain a master key; D, the client, according to the master key, generates a dynamic password; and E, after the dynamic password is used, the master key and the dynamic password are deleted. Therefore, only when the dynamic password needs to be generated, the master key is obtained by the biological characteristics of the user so as to carry out calculation to generate the dynamic password. After the dynamic password is used, the master key and the dynamic password are immediately deleted, and thus, defects of the prior art are overcome, and safety is improved.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a method for generating a dynamic password. Background technique [0002] Dynamic token (OTP, One-timePassword) is a hardware token that generates a dynamic password. Every time you log in to the token, a new password will be generated. Each password is only used once. Even if the hacker steals the password, it is useless and can effectively solve the password problem. Theft problem. Dynamic tokens have been widely used in identity authentication. [0003] With the popularity of smart terminals such as smart phones, there is an increasing demand for using smart phones to generate dynamic passwords, but it has always been a difficult problem to ensure the security of the master key (also called the seed) in the dynamic token in the mobile phone. The existing mobile phone token directly stores the master key file in the mobile phone, which has very low security. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08
CPCH04L9/3228H04L9/0863H04L9/0866
Inventor 安晓江胡伯良王志强
Owner BEIJING HAITAI FANGYUAN HIGH TECH