Method for constructing ROM-based dual-domain mobile phone system

Abstract

The invention discloses a method for constructing a ROM-based dual-domain mobile phone system. The dual-domain mobile phone system comprises a master domain based on a mobile phone kernel, a slave domain and a domain management program. The method specifically comprises the following steps: step 1: adding a code supporting a dual-domain function to the original mobile phone kernel, and compiling and generating a new kernel binary file; step 2: modifying a boot. img mapping file of the master domain; step 3: modifying system. img mapping files of the master domain and the slave domain; and step4: respectively burning the boot. img mapping file of the master domain, the system. img mapping file of the master domain and the system. img mapping file of the slave domain in corresponding flashsubareas of a mobile phone. Therefore, by adoption of the method disclosed by the invention, the coupling degree between a dual-domain system and a mobile phone manufacturer can be reduced, and moreover a third party mobile phone security solution provider can develop and apply an own dual-domain system while the own benefits of the mobile phone manufacturer is protected.

Description

technical field [0001] The invention relates to a mobile phone system, in particular to a construction method of a ROM-based dual-domain mobile phone system. Background technique [0002] As smartphones penetrate into every aspect of people's lives, people use smartphones to chat, shop, play games, work, and watch movies, which brings great convenience to life. However, with the continuous occurrence of privacy leaks and endless fraud incidents this year, They are constantly reminding people to pay attention to the security of smart terminals. How to customize a set of secure mobile phone solutions that can meet the needs of mobile office, secure payment, and privacy protection without affecting the user experience? Isolate a smart terminal into operating environments suitable for different security levels. [0003] In response to the current security threats to mobile terminals, research institutions or personnel in the industry have proposed many solutions. The article "M...

AI Technical Summary

Problems solved by technology

This assumption makes the development of the dual-domain system very dependent on mobile phone manufacturers. If a third-party security team has its own dual-domain product and wants to apply it on an actual mobile phone, the mobile phone manufacturer must open a full set of source code.

However, in order to protect their own interests, mobile phone manufacturers are less likely to fully open source code. This situation has brought obstacles to the development of dual-domain systems.

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