Blockchain-Embellished Cloud Data Security

Decentralized and tamperproof, blockchain is a new technology that can safeguard the integrity of sensitive data stored on it. Blockchains are additionally utilized in conjunction sharing and limiting access to personal data with cloud storage. The secrecy of sensitive data is frequently protected using encryption based on attribute (EBA) methods which permits multitudinous encryption. However, there are drawbacks to EBA solutions, including inflexibility in access control policy, key misuse, and inefficiency. We describe an encryption based on traceable attribute with dynamic access control (EBTA-DAC) technique for precise cloud sharing of encrypted private data, which is based on the blockchain and provides traceable attribute-based encryption. The suggested method also employs dynamic access control, allowing data to be accessed only by authorized users. The proposed EBTA-DAC technology enables for tracking to hold malicious users accountable if they disclose the secret key. The recommended method additionally uses vibrant admittance control, enabling data holders to change access control rules as necessary. Blockchain technologies like the hashing algorithm, public/private key encryption, and transaction ledgers make this possible. Blockchain makes it simple to securely share, examine, and save digital information. Additionally, it encrypts every transaction using cryptography. Banks are able to raise the bar for security and transparency by doing this. We leverage blockchain to solve challenges like inefficiencies, key manipulation, and lack of flexibility in access control policies for data security and distribution. Finally, we validate the efficacy of the proposed system through comparing theoretically and experimentally.