A new mobile payment protocol (GMPCP) by using a new group key agreement protocol (VTGKA)

Portable and mobile devices are capable of doing different types of payments, since they became really advances. Besides, most of the people would rather to do their online tasks with their cellphones. Our goals are decreasing the time complexity of computational operations and communications. Furthermore, it is important to protect identities of payer and payee completely.We will use a new group key agreement protocol named VTGKA that is working by symmetric key operations. We use the VTGKA protocol for generating a shared session key between n users.