Cloud Data Security Access Control Method under Blockchain Technology
This paper designs a method of cloud data security access control under blockchain tech-nology.Multiple data blocks in the data set are sequentially encrypted by the aggregate key to complete self-encryption of cloud data.Design the overall architecture of cloud data security access control under blockchain technology.Based on this,the permission request contract process and permission identifica-tion contract process are designed,and finally the cloud data is stored in the blockchain.The experimen-tal results show that the encryption and decryption of cloud data have high efficiency,and the access of cloud data has higher security under the application of this method.