Attribute Encryption Information Sharing Scheme Based on Blockchain Technology

This article proposes a new attribute encryption (ABE) database sharing scheme based on blockchain technology. The data in the database is controlled more precisely by encrypting each column of data, enabling users to request data under their own permissions on demand. Implementing access control between data owners and users through blockchain and smart contracts. Data protection is achieved with the help of cloud service storage as well as blockchain. In order for transactions to proceed, the data owner assigns the necessary permissions to the user, which allows the user to access data on cloud storage and then access the data in the corresponding columns based on their permission level.