User identity verification method, apparatus and system based on block chain

Abstract

The invention discloses a user identity verification method, apparatus and system based on a block chain. The user identity verification method comprises the following steps: obtaining a user identification code and a user information ciphertext from a client, wherein the user information ciphertext is generated by encrypting to-be-verified user information by using a current user private key; sending the user identification code to a block chain server, so that the block chain server obtains corresponding current user information and a current user public key; decrypting the user informationciphertext by using the current user public key returned by the block chain server to obtain decrypted to-be-verified user information; when it is judged that the current user information is the sameas the decrypted to-be-verified user information, generating a verification pass message; and triggering the updating operation of the current user private key and the current user public key according to the verification pass message by the client. By adoption of the user identity verification method, apparatus and system, the security of user identity verification process can be improved, and the accuracy of a user identity verification result can be improved.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a block chain-based user identity verification method, device and system. Background technique [0002] With the rapid development of the social service industry, people's requirements for service quality are getting higher and higher. As a symbol of dignity and status, VIP cards are being used in various fields. In order to increase user stickiness and improve service quality, major institutions and even small companies have proposed their own VIP card business. [0003] In the prior art, the verification of the VIP identity of the user is usually realized by the user presenting the VIP card at the counter, the verifier inputting the card number, and checking the information in the background. In order to prevent user information from leaking, background information transmission is usually transmitted in an encrypted manner, but since the key pair of the encryption p...

AI Technical Summary

Problems solved by technology

In order to prevent user information from leaking, background information transmission is usually transmitted in an encrypted manner, but since the key pair of the encryption process is usually agreed by both parties in advance and will not be changed at will, and the digital certificate of the encryption process is provided by a unified CA (Certificate Authority) issued by the certification center, the generated key has a certain regularity, therefore, the key pair and the corresponding user information are easy to be stolen and imitated, not only prone to user information leakage, but also prone to Malicious attackers use impersonated user identities to attack the background

In addition, since the corresponding user information will be easily tampered with after the key pair is imitated, there will be errors in the verification result

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