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블록체인 기반의 영지식을 활용한 DID(Decentralized Identity)플랫폼 연구
이광규 신한대학교 2021 신한대학교 논문집 Vol.44 No.-
Blockchain-based Decentralized Identity (DID) is emerging as one of the strongest security technologies for personal information authentication. However, while blockchain-based DID provides the technical characteristics of decentralization, transparency, immutability, and availability, DID has strengths in preventing the forgery of identification cards, but is vulnerable to overexposure of personal information recorded on identification cards. In this paper, we propose a platform for DID's Zero Knowledge Proofs (ZKP) structure that exposes only the minimum amount of personal information necessary to solve this problem. In particular, by analyzing the structure of the DID platform using zero knowledge proofs, the requirements were derived, and a time code was attached to protect personal information by destroying recorded information after a certain period of time. It presents a way to create and manage related data directly.
이광규 (사)디지털산업정보학회 2022 디지털산업정보학회논문지 Vol.18 No.3
DID(Decentralized Identity Identification) is a system in which users voluntarily manage their identity, etc., and control the scope and subject of submission of identity information based on a block chain. In the era of the 4th industrial revolution, where the importance of protecting personal information is increasing day by day, DID will surely be positioned as the industrial center of the Internet and e-business. However, when managing personal information, DID is highly likely to cause a large amount of personal information leakage due to electronic infringement, such as hacking and invasion of privacy caused by the concentration of user's identity information on global service users. Therefore, there are a number of challenges to be solved before DID settles into a stable standardization. Therefore, in this paper, we try to examine what problems exist in order to positively apply the development of DID technology, and analyze the improvement plan to become a stable service in the future.
李光奎 단국대학교 미소연구소 1991 미소연구 Vol.5 No.-
Outside of the korean Peninsula, there are about 5 million Korean scattered around the world; 1.3 million are in the U.S. and 4 hundred thirty thousand are in the USSR. Among the several dissimilar conditions, the difference between democratic and socialistic ideology will provide a good contrast for finding out the characteristics of Korean people abroad. History of immigration: The exodus from the korean Peninsula began during the middle of the 19th century and continues until today. The immigration to the USSR occurred during the earlier part of immigration his tory and immigration to the U.S. during the later part of history. According to written records, the immigration to Russian soil began in 1863. Korean farmers in Russia sometimes suffered hardship and even the patriotic movement of Korean people was suppressed. The most tragic event for Koreans in the USSR was the enforced relocation from the Russian Far East to the semi-deserts of Central Asia in 1937. Yet the Koreans there succeeded in making fertile rice fields. The first Korean immigration to the U.S. began in 1903, when immigrant laborers landed in Hawaii, but this ended in 1905. The real migration to the U.S from Korea began in 1965. From there on, Koreans who had skills or higher education migrated to the U.S. and this new type of migration may be called elite migration. Socio-Economic Life: In the U.S. and in the USSR, the Korean residents have similar characteristics in the local distribution of population. Koreans in the U.S. are scattered all over the country, but there are areas of concentration such as Los Angeles, New York, and Chicago. In the USSR, they are mainly concentrated in Uzbekistan and Kazakhstan. A big difference between the two groups lies in the occupation of Koreans. More than 80% of Koreans in the USSR work in collective farms. Few Koreans farm in the United States. In social life, the Koreans in the U.S. have many voluntary associations and Korean churches. There are neither churches nor voluntary associations in the USSR. However the government emphasized the cooperation of ethnic groups on collective farms. Ethnic Identity: The third or fourth generation Koreans in the USSR have lost almost all traditional customs except food. The Koreans in the U.S., mainly first generation, may speak korean at home, but most Koreans in the USSR have all forgotten the Korean language because of governmental suppression. Nevertheless, Koreans in the USSR have strong national feelings to ward Korea.