Integrating TEE with Blockchain for Secure Offline Transactions

Authors: Sonali Thorat, Abhijit Pathare, Sairaj Kadlag, Rutuja Gayke, Prof. P. S. Hase

Country: India

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Abstract: As digital transactions continue to proliferate, the need for secure and flexible offline payment solutions has become increasingly critical. This project addresses the growing demand for a block chain-based offline payment protocol that effectively balances security and flexibility—two essential characteristics often at odds in existing systems. Current solutions frequently compromise flexibility for heightened security, leading to user dissatisfaction and potential vulnerabilities.
To overcome these limitations, we propose an innovative protocol that harnesses the power of Trusted Execution Environments (TEEs) and smart contracts. TEEs provide a secure enclave for processing transactions, ensuring that sensitive data remains protected from unauthorized access, even in potentially hostile environments. By integrating smart contracts, our protocol facilitates automated and transparent transaction execution, which enhances trust among participants while reducing reliance on continuous on-chain connectivity.
The proposed solution is designed to operate seamlessly in scenarios where network access is sporadic or unreliable, ensuring that users can conduct transactions without the need for constant online verification. This resilience is achieved through a dual-layer approach: TEEs ensure secure transaction processing, while smart contracts manage the validation and reconciliation of transactions once connectivity is restored.
Our research evaluates the effectiveness of this protocol against real-world attack scenarios, demonstrating its capability to mitigate risks while maintaining high usability. We also explore the implications of our solution for various industries, including retail, logistics, and finance, highlighting its potential to transform offline transaction methods.

Keywords: Block chain, Offline Payments, Security Flexibility, Trusted Execution Environments (TEEs) Smart Contracts, Intermittent Connectivity, Transaction Resilience, Digital Transactions Protocol Development, User Experience, Real-World Attacks, Financial Technology

Paper Id: 232094

Published On: 2025-02-04

Published In: Volume 13, Issue 1, January-February 2025

Cite This: Integrating TEE with Blockchain for Secure Offline Transactions - Sonali Thorat, Abhijit Pathare, Sairaj Kadlag, Rutuja Gayke, Prof. P. S. Hase - IJIRMPS Volume 13, Issue 1, January-February 2025.

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