TrustZone-based domain space switching system and method
A technology for switching systems and spaces, applied in the field of information security, can solve the problems of inability to guarantee the security of user space information, poor data protection, and easy theft of switching keys by others.
Active Publication Date: 2016-02-24
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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Problems solved by technology
Due to the poor security of these partitions in terms of data protection, the switching keys stored on these partitions are easily stolen by others, and the security of user space information cannot be guaranteed.
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0037] The embodiment of the present invention discloses a domain space switching system based on TrustZone, which is applied to the multi-domain space of the intelligent mobile terminal, and the multi-domain space includes at least two domain spaces; see figure 1 As shown, the system includes:
[0038] A handover request acquisition module 11, configured to acquire a corresponding handover request instruction when the first domain space in the multi-domain sp...
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The invention discloses a TrustZone-based domain space switching system and method. The system comprises a switching request acquisition module, an extraction instruction generation module, a TrustZone and a domain space switcher, wherein the switching request acquisition module is used for acquiring a corresponding switching request instruction when a first domain space in a multi-domain space needs to be switched to a second domain space; the extraction instruction generation module is used for generating a key extraction instruction according to the switching request instruction; the TrustZone is used for storing switching keys; and the domain space switcher is used for extracting a switching key corresponding to switching to the second domain space from the TrustZone under the control of the key extraction instruction, and finishing a corresponding switching operation by using the switching key. The switching keys for switching the domain spaces are stored in the TrustZone, and data saved inside the TrustZone is difficult to steal from the outside since the TrustZone is constructed with a strict security mechanism, thereby enhancing the security of the switching keys.
Description
technical field [0001] The invention relates to the technical field of information security, in particular to a domain space switching system and method based on TrustZone. Background technique [0002] With the development of informatization, smart mobile terminals are being used more and more widely. In order to improve the ability of the smart mobile terminal to manage data information, it is now possible to set up multiple domain spaces on one smart mobile terminal, so as to use different domain spaces to manage different user data. [0003] However, when switching between different domain spaces on the smart mobile terminal, the required switching key is stored in the file system, such as the data partition or the persist partition of Android. Since these partitions have poor security in terms of data protection, the switching keys stored in these partitions are easily stolen by others, and thus the security of user space information cannot be guaranteed. [0004] Fro...
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IPC IPC(8): H04L9/08
CPCH04L9/08H04L9/0819H04L9/0816
Inventor 江跃龙
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD