• Priyadharshini S
• Dr. Durga Devi
• Shushma.MK
• Sujithra.VM

As the realm of e-commerce expands, electronic coupons (e-coupons) have become increasingly prevalent due to their convenience and accessibility. However, traditional e-coupon systems, relying on centralized servers for information management, often face security vulnerabilities. Issues such as coupon forgery and double-spending pose significant challenges in maintaining the integrity of the system. To address these concerns, we propose a novel e-coupon service leveraging blockchain technology to enhance security. Our approach involves two key components. First, we introduce a dedicated server responsible for managing the e-coupon service and interfacing with the blockchain system. Second, we develop a smart contract deployed on the blockchain to ensure the integrity of both the e-coupon business logic and its associated information. Specifically implemented on an Ethereum-based blockchain, our experimental results demonstrate that our proposed solution offers heightened security while incurring only minimal performance overhead compared to conventional e-coupon services. In summary, our innovative approach harnesses the power of blockchain to fortify e-coupon systems against common security threats, paving the way for safer and more reliable transactions in the digital marketplace.

E- Coupon , Blockchain System , Security , centralized Server , Smart contract , Ethereum-based Blockchain.

"A SECURE E-COUPON GENERATION SERVICE BASED ON BLOCKCHAIN SYSTEMS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 4, page no.m765-m773, April-2024, Available :http://www.jetir.org/papers/JETIR2404C98.pdf

"A SECURE E-COUPON GENERATION SERVICE BASED ON BLOCKCHAIN SYSTEMS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 4, page no. ppm765-m773, April-2024, Available at : http://www.jetir.org/papers/JETIR2404C98.pdf