Method and system for realizing cooperation between applications in resource-constrained device

The invention relates to a method and a system for realizing cooperation between applications in a resource-constrained device, and belongs to the technical field of computer security, the method comprises the following steps: a client application initiates a service request, and provides a client application identifier and a specified service identifier for a service access module; the service access module calls a registration service interface method of the service application to obtain a registration service interface, and authenticates the client application through the registration service; after the authentication is passed, registering a service requested by a client application through a service management module; the client application calls a service interface method of the service application through the service access module to obtain a service interface and use the service; and the client application calls the service access module to create a shadow array object so as to realize data exchange b