Cloud computing enables the storage and access of large datasets via the internet, reducing management costs associated with them.
Growing cloud adoption has prompted worries regarding data security, driving the demand for creative strategies to safeguard confidential information.
Conventional techniques often fall short in counteracting dangers tied to centralized key storage and breached encryption keys. Standard security safeguards, including authentication protocols and encryption, frequently fall short of offering complete defense against threats originating in the cloud. This makes maintaining data integrity and regulatory compliance in modern cloud systems difficult.
To alleviate these challenges, a Blockchain-based Decentralized Distributed Chain Link (BD2CL) technique provides secure sharing of sensitive information in the cloud. The process begins with the introduction of the Dynamic Circular Shift Advanced Encryption Standard (DCSAES), applying circular shifts that depend on the specific block both before and after standard AES encryption takes place.
Following this, the resulting ciphertext blocks undergo protection via the Elliptic Curve Public Key (ECPK) approach, utilizing uniquely created session keys to safeguard the keys at the block level. Once secured, these blocks enter the BD2CL network, where they are transmitted in a decentralized manner following node authentication, malicious line detection, and consensus-based verification of chain links.
The Data Integrity Verification Scheme (DIVS) checks the validity of incoming blocks at the receiving end through digital-signature validation, Merkle-root validation, hash comparisons, and confidence-driven integrity assessments. Only information that passes verification successfully reaches the end user, whereas any failed checks trigger a revalidation process for the impacted chain link.
According to the tests, the system achieves an integrity verification accuracy of 94.73%, a throughput of 405 TPS, and a high security performance level of 93.71%. Outperforming the leading baseline of 92.04% set by BADS-ABE, the security performance exceeds it by 1.67% points. Overall, the BD2CL improves secure transaction performance, leading to lower latency and more security.
