Research on the digital coupon of mobile two-dimensional code based on RSA digital signature

Digital coupon is an application system which makes the coupon circulating on internet by the digital forms. The real commercial system hasn´t presented yet in current domestic. The problem lies in the function realization of transferring, prevention of repeated consumption and non-repudiation. In this research, the author puts forward with a set of solutions for digital coupon system based on authentication technology of digital signature, and carried by mobile two-dimensional code by analyzing the relevant studies at home and aboard, and integrating the current popular encryption and transmission technology. The testing system resulted by this study is with innovation, good implementation efficiency and practicality. The obtained theory and experience can be a meaningful reference to other studies in relevant fields.