EMV-TLS, a Secure Payment Protocol For NFC Enabled Mobiles

This paper introduces a new online payment protocol called EMV-TLS, dealing with NFC enabled mobiles. EMV-TLS results from the merging of three technologies: EMV payment applications, SSL/TLS secure channels, and Near Field Communication radio interfaces. The main idea of this protocol is to remotely use an EMV-TLS chip, thanks to a secure TLS channel established with a server. The mobile acts as a passive modem that manages TCP/IP resources. Two classes of servers are defined; N1 class may only read the embedded information (card number, bearer name, validity date,), while N2 class has access to all chip resources and may generate cryptograms. A first experimental platform including an EMV-TLS chip, an Android mobile, and a TLS payment server has been realized as an early proof of concept.