Data protection method and terminal

Abstract

The invention provides a data protection method and a terminal. The data protection method comprises the following steps: step 102, encrypting a shared data area in the terminal; step 104, authorizing at least one application program; and step 106: when the application program needs to read and / or write the shared data area, determining whether the application program is authorized; if the application program is authorized, allowing the application program to read and / or write the shared data area; if the application program is not authorized, forbidding the application program to read and / or write the shared data area. According to the invention, as the shared area is encrypted so that only a part of application programs authorized by a user can access the shared area, malicious programs can be prevented from damaging the data security of the shared area.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular, to a data protection method and a terminal. Background technique [0002] In the current mobile terminal, some important data need to be frequently used by multiple different functional modules. For example, for a multi-mode multi-card mobile phone, multiple communication modules therein often need to use the data in the USIM card (Universal Subscriber Identity Module, Global Subscriber Identity Module), which requires the data of the USIM card to be shared. After a communication module is closed, the user can still read the data of the USIM card corresponding to the module. [0003] For the above content, the current solution is to read the information in each USIM card after the mobile phone is turned on, and store it in a shared area, that is, an area where multiple functional modules or application programs can perform read and write operations, and the AP ( The Ap...

AI Technical Summary

Problems solved by technology

However, since the USIM stores highly private data such as contacts and short messages, this approach is very unsafe, and it is easy for malicious programs or Trojans to steal information in the shared area

[0004] The current technical solution puts the data read from the USIM into the shared data area, so that any application program can read it arbitrarily. It is not safe to put the data read from the USIM into the shared data area, and it is easy for malicious programs or Trojans to steal information in the shared area, causing security risks

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