System and method for issuing certificates based on blockchain

Abstract

The present invention relates to a block chain-based approval certificate issuing system and a block chain-based approval certificate issuing method using the system, a block chain-based approval certificate authentication system and a block chain-based approval certificate authentication using the system method, by which a random number generator installed in a terminal in which it is impossible to install functions or additional programs for physically accessing and reading the interior of the system autonomously generates, stores and manages personal keys for certificates of approval Compromise of personal keys used for endorsement certificates via a distributed database based on a peer-to-peer (P2P) network rather than in a server operated by an accredited certification authority (CA) electronically installed in a blockchain retention server The public key for accredited certification that needs to be maintained is stored and managed in the blockchain of the wallet, so if a hacker attack occurs, it is possible to prevent hacking by establishing an accredited certificate issuance system with a high-level security system The costs and costs of operating and maintaining an established accredited certificate issuance system are incurred with little maintenance cost, and even if ActiveX is not established, the accredited certification process can be performed.

Description

technical field [0001] The present invention relates to a method for issuing a public certificate based on a block chain and a system using the method, and a method for authenticating a public certificate based on a block chain and a system using the method; A method of performing authentication of a public certificate even without an ActiveX control by generating and storing a private key of a public certificate in a random number generator in a device on which the program cannot be further installed, which cannot be physically accessed and therefore The disclosure of the private key is prevented, and, using a distributed database based on a peer-to-peer network (ie P2P) instead of a server managed by a certification authority (ie CA), through the blockchain of the digital wallet in the blockchain node Store and manage the public keys that need to be maintained, thereby minimizing the additional cost required to maintain a public certificate issuance system with high security...

AI Technical Summary

Problems solved by technology

[0009] However, despite such advantages, in the conventional blockchain-based public certificate issuing system and the method of using the system and the conventional blockchain-based public certificate authentication system and the method of using the system, along with the user equipment Generate a public key and a private key when the network is disconnected, and encrypt the generated private key together with the photo image and password selected by the user, which is more secure than storing plain text, however, when entering the password and selecting the photo image, the private key is stored in plain text form is stored in memory, so if a memory dumper is being executed on the user's device, there is a risk of leakage when the user uses the private key

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