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TA image storage method and device and terminal

A technology of mirror storage and mirroring, which is applied in the field of information security to achieve high flexibility, versatility, and security guarantees

Active Publication Date: 2018-10-02
WATCHDATA SYST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this TA image storage solution must entrust the TEE manufacturer to sign the TA image

Method used

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  • TA image storage method and device and terminal
  • TA image storage method and device and terminal
  • TA image storage method and device and terminal

Examples

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Embodiment Construction

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0037] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0039] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

The invention discloses a TA image storage method and device and a terminal and relates to the field of information security. The method comprises the steps that a data storage structure correspondingto a storage form of a TA image is set, wherein the storage form comprises storing the TA image as an object, file or block in TEE, storing the TA image with a signature, storing the TA image as a ciphertext TA image and the like; and the storage form of the TA image needing storage is acquired, the data storage structure corresponding to the storage form is used as a TA image storage structure,and the TA image needing storage is encapsulated and stored according to the TA image storage structure and preset encapsulation rules. The storage method and device and the terminal are not only suitable for the situation of TA installation through TAM but also suitable for the situation of TA downloading through OTA or an application store, have high flexibility and universality and are suitablefor various TEE platforms, and the security also can be ensured.

Description

technical field [0001] The present invention relates to the technical field of information security, in particular to a TA image storage method, device and terminal. Background technique [0002] At present, most terminals integrate Trusted Execution Environment (TEE, Trusted Execution Environment) and Rich Execution Environment (REE, Rich Execution Environment). REE is composed of client application (CA, ClientApplication) and application operating system. The TEE consists of a trusted application (TA, TrustedApplication) and a trusted operating system (Trusted OS, Trusted Operating System). REE supports rich applications, but REE has certain security risks. TEE is a system software based on the ARM chip TrustZone mechanism. TEE can be an independent area in the terminal, and the installation of applications in this area is controlled by the management server platform. In the ARM-based TrustZone technology architecture, the CA running in the Normal World (REE) and the TA...

Claims

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Application Information

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IPC IPC(8): G06F8/61H04L29/06
CPCH04L63/0428G06F8/63
Inventor 成秋良
Owner WATCHDATA SYST
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