An IPFS Privacy Storage Sharing Scheme Based on SM4 Algorithm
Jiazhen Song, Yutong Li, Haori Lu, Jingrong Wang, Peng Nie
Abstract
Nowadays, based on the characteristics of immutability and decentralization, IPFS as a distributed file system is applied in more and more scenarios.However, the storage mode of IPFS is designed for all Internet users and is open.Therefore, the protection of personal privacy data stored on IPFS and the sharing of privacy information within a specific range have become the problems that need to be solved in the current application of IPFS.Based on the above requirements, this paper proposes a scheme based on SM4 domestic commercial security algorithm, which realizes the storage of private information in the form of ciphertext on IPFS, ensures its privacy and realizes the sharing of plaintext content only within the specified range.After analysis, our proposed scheme has reached a high level in algorithm performance and process security.And the scheme has been applied to the self-realized rumour management platform, which shows that it has a wide application prospect.