Dynamic password safe login method

A secure login and dynamic password technology, applied in user identity/authority verification, biological neural network model, physical implementation, etc., can solve the problems of complex use, inability to balance security and cost, etc.
CN101459516AInactive Publication Date: 2009-06-17ZHEJIANG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV OF TECH
Publication Date
2009-06-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A dynamic password security login method is provided, which sets that a client and a server have weight synchronous models with the same parameters, and comprises the following steps: initiating a login request by the client, and sending a user name to the server, generating a random number by the server and returning to the client, obtaining that M=user 'Passwd' R, H=SHA1(M), F=LFSR (H) by respective calculations of the client and the server, obtaining the same weight WC=WS according to the mapping algorithm of a random number sequence F, leading the weight synchronous model to study P=%n order by the client according to the random number, wherein R is the random number, n is a preset value, sending the weight vector WC after updating P orders to the server after Hash algorithm SHA1(WC), and leading the weight synchronous model to study P orders by the server to obtain the weight vector WS after updating P orders, and calculating the Hash value SHA1 (WS) thereof, wherein the identification is success if the SHA1 (SC)=SHA1(WS), or is false. The dynamic password security login method has simple use, highly-effective security and low cost.
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Description

technical field

[0001] The invention relates to a dynamic password login method. Background technique

[0002] Facing an open network environment, user's secure login is very important. At present, the user login of various Web sites is generally implemented based on the authentication method of user name and password. The server side stores the relevant information of user name and password, and completes the security authentication by comparing the login information from the client. Before encryption technology was popularized, some websites (especially some free service supply sites) directly sent the clear text of the password to the server to complete the comparison when sending the user login password. For the transmission of plaintext passwords, hackers can directly intercept user passwords by using network packet capture tools, which is extremely unsafe. Therefore, for the security problem of password login, various login technologies have appeared. According to w...

Claims

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