• J Sahaya Jeniba
• Gladrene Sheena Basil
• Ashwin P
• Esakimuthu E
• Nava Nishanth N

Electronic coupons, sometimes known as "e-coupons," are frequently employed, as the use of online shopping increased. The majority of e-coupon systems manage the information of e-coupons on a single server. However, due to their centralized nature, e-coupon systems frequently face security risks. It becomes difficult to match the user and the e-coupon's owner, for instance, and an expired e-coupon can be used repeatedly (i.e., double-spent), when the e-coupon information that is maintained in a centralized e-coupon server is forged. By utilizing a block chain technology to increase the service's security, we suggest a new e-coupon service to address this problem. In order to accomplish this, we must first create a server that can both enable the e-coupon service and communicate with the block chain system. In addition, we create a smart contract on the block chain system to guarantee the facts and business logic of an e-coupon are accurate. On a block chain system built on Ethereum, we implemented the suggested service. The experimental findings indicate that, when compared to an existing e-coupon service, our suggested service increases security while just slightly affecting performance.

Block Chain, e-coupons, Bit Coin, E-Commerce

"BLOCK CHAIN-BASED SECURE E-COUPON SERVICE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 6, page no.j271-j276, June-2023, Available :http://www.jetir.org/papers/JETIR2306938.pdf

"BLOCK CHAIN-BASED SECURE E-COUPON SERVICE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 6, page no. ppj271-j276, June-2023, Available at : http://www.jetir.org/papers/JETIR2306938.pdf