Tax payment user identity authentication method and device based on block chain

• Main Authors: PANG YUXIONG, GUO YUNZHI
• Format: Patent
• Language: Chinese; English
• Published: 16.11.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a tax payment user identity authentication method and device based on a block chain. The method comprises the following steps: in response to a registration request initiated by a tax payment user terminal, sending identity information uploaded by the tax payment user terminal to a block chain network, and issuing a communication certificate to the tax payment user terminal through the block chain network according to the identity information; establishing connection between the tax payment user terminal and the block chain network based on the communication certificate, responding to a login request initiated by the tax payment user terminal through the block chain network, and issuing an access certificate to the tax payment user terminal; responding a transaction certificate application request initiated by the tax payment user terminal through the block chain network, storing a ciphertext containing identity information in an expansion domain of a transaction certificate, and issui