Increasingly, users of mobile devices access to Internet services while they are on the move, i.e. anywhere and at any time. This results in a new phenomenon - mobile electronic commerce, or m-commerce. Security provision for m-commerce community is a challenging task due to insecure air interface of wireless access networks, limited computational capability and battery life of mobile devices, and the mobility of users. This paper presents a novel asymmetric end-to-end authentication protocol that is based on the concept of using the wireless access Home Network of a Mobile Station to assist its authentication with a Service Provider. The security of the proposed protocol is analysed and its performance against other related work is evaluated.