클라우드 에지 환경에서 블록체인 서명 키를 이용한 무결성 검증 기법

As the Internet continues to develop along with IT technology, various studies related to data integrity have been conducted to date, which can achieve the maximum efficiency of minimum cost. In particular, integrity studies that can process blockchain and big data together in a cloud edge environment are actively being conducted. In this paper, we propose an integrity verification technique using a blockchain signature key to ensure the safety of block information in a cloud edge environment. The proposed technique lowers the verification cost of blockchain integrity by processing the property information of the blockchain together. In addition, the proposed technique does not rely on a third party because it guarantees the reliability of block information using a blockchain-based signature key, and does not expose the privacy information of the blockchain using the anonymity and tampering prevention characteristics of the blockchain. In addition, the proposed technique can find and replace the URL 'path' stored in the block according to the Merkle tree according to the properties of the block, so damaged data recovery can be performed. As a result of the experiment, the model verification accuracy of the proposed technique was evaluated with five evaluation items depending on whether or not the blockchain was used, and the accuracy averaged 83.17% as a result of evaluating it with 5 evaluation items. As a result of the security evaluation, since the proposed technique uses a hop-to-hop method, potential integrity threats that may occur in block processing can be prevented in advance. In addition, since the proposed technique guarantees trust using the signature key, it does not rely on third parties, so information related to block data using the anonymity and invariance of the blockchain is guaranteed throughout the authentication process.