ENHANCED BLOCKCHAIN SECURITY FOR GST BASED ON SHUFFLE CHAIN LINK PROOF AGREEMENT

With the rapid advancement of blockchain technology, smart contract execution and execution infrastructure have increased importance in recent years. Blockchain technology is the primary enabler of smart contracts and offers assurance on their effectiveness due to its robust and secure base. Blockchain's transparency, decentralization, and security make it an innovative technology that is indispensable in modern society. The Goods and Services Tax (GST) blockchain for the delivery of goods and services is a multi-layered intermediate tax system that extends from producers to end users. The primary issue with current solutions is that security and resilience are not balanced in their design. Crucial Compromise Unauthorized access tools and a lack of authenticated services could endanger important data. To overcome the issues, we proposed the method Shuffle Chain Link Proof Agreement Based Elliptic curve cryptography (SCLPA-ECC) with Proof of Authority (PoA) Algorithm for validating the trust GST smart contract transaction. User Identity Verification (UIPV) ensures secure transactions in cloud environments. A decentralized blockchain stores each data in a different location within the block. It creates a hash ID for each Goods and Services Tax (GST) chunk and encrypts it using a hash-indexed subset selection (HIS) based key value. Chain-link integration sequentially generates unique keys for each block, enabling secure communication and transactions in a decentralized blockchain environment. Using a Proof of Authorization (PoA) technique for data access, it approves user transactions. The Master Node Key Policy (PNKP) uses confirmed keys from the master to regulate block generation. The cost is made simpler during the user authentication stage by using searchable attribute key access points. The security analysis concludes by demonstrating that a decentralized blockchain network can achieve conventional centralized audit, publication, and certificate verification outcomes, hence enhancing security and transparency.