Design and Implementation of a Personal Portfolio Multilateral Authentication System Based on Hyperledger Fabric

Abstract

Although the blockchain technology has been developed mainly around bitcoin, it is also being studied for use in various fields. As a result, it is spreading not only to the applications of settlement and transaction utilizing the characteristics of bitcoin (virtual money) but also to the fields not directly related to money. In this paper, we propose a personal portfolio multilateral authentication system that guarantees the reliability and integrity of data by using the features of blockchain technology on a distributed network. The proposed system could be submitted learning data to a peer in a distributed network by a learner. Then, it is verified through an agreement between peers and recorded in a chronologically encrypted ledger. It is a system that provides learners' information in a safe and prompt manner between schools, the school to the certification authority, the school to the company, and the student to the company according to decisions of learners.

Two-Level Blockchain System for Digital Crime Evidence Management

“…Studies on ways of improving the original identity, integrity, and reliability of criminal digital evidence obtained in the investigation process in Korea have been conducted [ 4 , 5 ]. However, most of these studies focus on identifying the characteristics of digital data, and establishing a life-cycle-based management environment with integrated digital evidence management.…”

“…Therefore, such evidence has not been used in court, because its reliability cannot be guaranteed [ 4 ]. To solve this problem, [ 5 ] proposed a system for storing and managing digital evidence in a reliable and transparent blockchain, wherein the digital evidence is encrypted and stored in the blockchain in the form of a hash, and all blocks refer to the hash of the previous block. In addition, because all of the nodes participating in the blockchain are connected like a chain in order to share digital evidence, it has the advantage of ensuring the transparency of digital evidence.…”