EMMC chip-based mobile terminal rollback prevention method and system

Abstract

The invention discloses an EMMC chip-based mobile terminal rollback prevention method and system. The method comprises the steps of obtaining first version information stored in an RPMB physical partition of an EMMC chip when a mobile terminal is started, wherein the first version information includes version information of partitions; comparing the first version information with second version information run by the mobile terminal, wherein the second version information includes current version information of the partitions; and when the first version information is higher than the second version information, controlling the mobile terminal to stop starting. According to the method and the system, the version information of the partitions are stored in the RPMB physical partition of the EMMC chip, and the version information in the RPMB physical partitions serves as a basis for judging whether the version rolls back or not. On one hand, the rollback of the version is prevented; and on the other hand, the EMMC chip is necessary hardware of the mobile terminal, so that the application range of the rollback prevention method is expanded.

Description

technical field [0001] The invention relates to the technical field of mobile terminals, in particular to an anti-rollback method and system for a mobile terminal based on an EMMC chip. Background technique [0002] With the development of science and technology, smart phones are being used more and more widely all over the world. According to statistics, by the end of 2015, there were more than 1.9 billion smartphone users worldwide, and it is expected to reach 2.2 billion by 2016. With the widespread use of smart phones and the gradual promotion of applications such as mobile payment, smart phones are gradually changing from communication tools to personal information terminals, and the accompanying issues of how to ensure the security of mobile phones and users' personal information are being increasingly More and more consumers and mobile phone manufacturers are paying attention. [0003] Usually, after the mobile phone leaves the factory, if the manufacturer finds som...

AI Technical Summary

Problems solved by technology

However, this approach has some disadvantages, as there is usually a fixed, relatively low number of e-fuses available, and once these are depleted, the anti-rollback protection is no longer provided

Therefore, once the e-Fuse cannot be updated with the correct version information, there is a potential for rollback attacks

At the same time, when the mobile phone chip does not provide efuse or similar storage space, the anti-rollback scheme of efuse cannot be used to provide anti-rollback protection, thus limiting the scope of application of the anti-rollback scheme

Images