A Reference Model for Korea Real Estate Administration Intelligence System Using Block Chain

블록체인을 이용한 부동산종합공부시스템 참조모델

Abstract

The block chain, which is characterized by a distributed ledger that stores the same data in several places, has various technical features including security and stability. Due to these characteristics, various researches are being conducted on the application of the block chain. In this paper, we consider the issues to be considered for applying the block chain to the Korea Real Estate Administration Intelligence System (KRAS). Based on this, we propose a block chain reference model for KRAS including a system configuration method and a consensus algorithm.

동일한 데이터를 여러 곳에 보관하는 분산원장을 특징으로 갖는 블록체인은 보안성과 안정성을 비롯한 여러 가지 기술적 특징을 가지며, 이로 인해 블록체인의 활용처에 관한 연구가 다양하게 이루어지고 있다. 본 논문에서는 공적장부의 하나인 부동산종합공부시스템에 블록체인을 적용하기 위해 고려할 사항들을 도출하고, 이를 바탕으로 블록체인 시스템 구성 방안과 합의 알고리즘을 포함하는 블록체인 참조 모델을 제시한다.

Fig. 1. Structure of PBFT

Fig. 2. Current KRAS Composition [13]

Fig. 3. Current KRAS Data Structure [13]

Fig. 4. Developing Direction of Next Generation KRAS [13]

Fig. 5. PBFT based Public Ledger Consensus Algorithm Reference Model

Fig. 6. Construction of Internal Network Block Chain Nodes in the Reference Model

Fig. 7. Collective Building Public Ledger

Fig. 8. Block Chain Reference Model for KRAS

Table 1. Types and Characteristics of Block Chain

Table 2. KRAS’s Per-User Usage Rights

Table 3. Characteristics of Current KRAS [13]

Table 4. KRAS Block Chain Participants and Role

Table 5. Type of Internal Network Block Chain

Table 6. Type of External Network Block Chain

Table 7. Examples of Consensus Requests by External Network Block Chain Participants

Table 8. Procedures for Changing Administrator of KRAS

Table 9. Features of Block Chain Reference Model for KRAS