1. A method for enhancing the efficiency of a network, comprising: generating a file containing references to components of a computer system image, the components including a base system image and a resource, the file also containing at least a signature associated with the resource; and after generating the file, transmitting the file over a network to cause the computer system image to be executed on a destination computing device based at least in part on the references to components contained in the file, wherein the destination computing device at least authorizes the resource to be incorporated into the computer system image by verifying the signature and ensures that the resource is incorporated into the computer system image.