earticle

한국어

he block chain is a distributed database technology that links the hash tree of a transaction block by block and compares the chain of blocks with all participants in the network to guarantee the integrity of the data. People are increasingly interested in sharing the cost of verification and integrity equally among all participants to reduce social costs and build a shared economy of trust. Many studies describe the reduction of computer resources for block-chain architectures and the framework for using block-chains. However, in business terms, it does not focus on applying block chaining and existing systems to actual security certification. In this paper, we propose a 2-factor authenticated user activity / modulation system that adds block chain based authentication system to existing authentication system using QR code based on access time. Through the system, it is possible to compromise between a block chain that consumes a lot of space resources for copy generation and a centralized type which is difficult to manage integrity. Describes the background of devising the system and describes the process, architecture, and model of the system.