Design and Performance Evaluation of NFC based Mobile Payment System using Lattice Cryptography

Abstract

Mobile payment is relatively a new method of payment compared to electronic payment. Smartphones are becoming all in one gadget. Moreover, smartphones with Near Field Communication present an even unique way of making contactless payment with Near Field Communication–Point of Sale. Even though some mobile payment system have been already commercially introduced, they are still far from becoming ubiquitous. The most important issue that arises in any sort of financial transaction is security. The selection of cryptographic tool for mobile payment puts a strict requirement on computational time and security level. The smartphones have relatively less computing power as compared to the PC and also mobile payment should happen in real time, so time constraint most along with the security. The faster key generation and encryption/decryption feature of lattice cryptography compared to other cryptographic tools make it our choice for data security. In addition to that, the mathematics upon which lattice cryptography is based is entirely different, and no known quantum computing algorithm exists to break it. Along with this strong cryptographic tool we have proposed a security level on top of already secured cellular mobile network for user authorization, authentication, data integrity and non-repudiation, eavesdropping and man in the middle attack.