Mobile secure data protection using eMMC RPMB partition

The paper presents the use case of Replay Protected Memory Block (RPMB) partition in eMMC to store the phone´s critical modem data, network operator billing information and/or application data in a secured manner which is protected from the attackers/hackers. In current software architecture, User Area partition stores the modem critical data which is known as modem EFS partition, but EFS partition doesn´t guarantee memory protection against REPLAY attacks. So in this paper we are proposing the RPMB block to store the secure data which will give additional protection against the REPLAY attacks. We have developed the RPMB driver interface in Android OS, Jelly Bean (JB) software. The functionality of RPMB has been verified successfully and results indicate the proposed mechanism guarantees a secured data storage.