Running a trusted application using a dynamic library

A computer device in which a rich execution environment (REE) and a trusted execution environment (TEE) are deployed, wherein an REE operating system is deployed in the REE and a TEE operating system is deployed in the TEE, wherein one or more trusted applications (TAs) are deployed on the TEE operating system, and wherein the computer device comprises:

• a memory configured to store instructions;
• and
• one or more processors coupled to the memory and configured to execute the instructions to:
• start a target TA in the one or more TAs;
• receive a loading request from the target TA in response to a running request of a target service, wherein the loading request indicates to load a target dynamic library, wherein the target service is a service provided by the target TA, wherein the running request of the target service is from a target client application (CA) deployed on the REE operating system, wherein the target CA has permission to invoke the target service, wherein the TEE operating system receives the target dynamic library in response to a second transfer request, wherein the second transfer request is sent to the REE operating system by the target CA in response to a first transfer request, and wherein the first transfer request is sent to the target CA by the target TA in response to the running request of the target service;
• and
• load the target dynamic library to memory space of the target TA in response to the loading request, wherein the target dynamic library is configured to support running of the target service.

A non-transitory computer-readable storage medium, comprising instructions executable by one or more processors of a computer device, wherein a rich execution environment (REE) and a trusted execution environment (TEE) are deployed in the computer device, wherein an REE operating system is deployed in the REE and a TEE operating system is deployed in the TEE, wherein one or more trusted applications (TAs) are deployed on the TEE operating system, and wherein when the one or more processors execute the instructions, the computer device is configured to:

• start a target TA in the one or more TAs;
• receive a loading request from the target TA in response to a running request of a target service, wherein the loading request indicates to load a target dynamic library, wherein the target service is provided by the target TA, wherein the running request of the target service is from a target client application (CA) deployed on the REE operating system, wherein the target CA has permission to invoke the target service, wherein the TEE operating system receives the target dynamic library in response to a second transfer request, wherein the second transfer request is sent to the REE operating system by the target CA in response to a first transfer request, and wherein the first transfer request is sent to the target CA by the target TA in response to the running request of the target service;
• and
• load the target dynamic library to memory space of the target TA in response to the loading request, wherein the target dynamic library is configured to support running of the target service.