블록체인의 태동, 현재 그리고 미래

초록

This study divided the history of the blockchain into the beginning, expanding and spreading period, looking at the major features and issues of blockchain technology for each period. In 2008, Bitcoin was assessed to have technical features that enable the efficiency, speed and security of transactions through direct P2P transaction between network users. However, issues such as limited quantity of coin mining, small block size, overconsumption of energy, and user-unfriendly characteristics were also problematic. Ethereum was developed in 2013 with the aim of 'decentralized blockchain platform’ to enable DApp(decentralized application) and smart contract by using Ethereum. However, governance in network, the irrevocability of smart contracts and transaction processing based on fees were issues to be addressed. Various kinds of Altcoin showed the possibility that blockchain technology can be applied to various industries during the spreading period that started in 2017. On the other hand, however, issues such as the relationship between cryptocurrency and blockchain, the decision of the blockchain algorithm and whether ICO(initial coin offering) should be legally permitted have emerged as issues. Examining the characteristics and problems of each historical period of the blockchain technology2008 to the present, this study is expected to provide the basis for future blockchain studies by helping to understand the blockchain development process and issues raised with blockchain technology.

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