Blockchain multi-factor identity authentication method, system and storage medium

Abstract

The invention discloses a blockchain multi-factor identity authentication method, system and storage medium. The invention first establishes an identity authentication cloud platform through offline consensus; User registration; then when initiating a transaction request, obtain the first signature of the user's private key for the transaction and the second signature of the identity authentication cloud platform for the transaction; finally, check the validity and the validity of the user's private key according to the first signature and the second signature. The validity of the signature of the identity authentication cloud platform is determined, the identity authentication result is determined, and the transaction is executed according to the identity authentication result; the present invention requires the transaction to have both the user's own signature and the cloud platform's signature. It improves the security of identity authentication and can be widely used in the field of blockchain technology.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a block chain multi-factor identity authentication method, system and storage medium. Background technique [0002] In the current blockchain applications, asymmetric encryption algorithms and digital signatures are basically used for identity authentication. In this way, if and only if the user is the owner of the private key, the identity authentication can be passed. Therefore, the identity The security of authentication is completely based on the security and confidentiality of the private key, which belongs to a single-factor identity authentication method. [0003] In traditional Internet applications, identity authentication methods include user name and password, face recognition, biometric authentication, etc. The security of this method is based on the security and credibility of the third-party organization that keeps the key. In this way, the user does not need...

AI Technical Summary

Problems solved by technology

[0005] 1. In the asymmetric encryption scheme of the existing blockchain application, the private key generally needs to be kept by the user himself, resulting in an increased risk of leakage or loss;

[0006] 2. In the identity authentication method of traditional Internet applications, the user's password is completely stored in a third-party organization. The security of the user's password depends on the security of the third-party organization. Once the organization is maliciously breached or the organization itself wants to counterfeit users, it is easy to cause user information leakage and user identity impersonation, etc., and the security is not high

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