Distributing and verifying authenticity of virtual macahine images and virtual machine image reposiroty using digital signature based on signing policy

摘要

A computer implemented method distributes a virtual machine image. A request for a virtual machine image is received. Responsive to receiving the request or the virtual machine image, the authenticity of a virtual machine image catalog associated with the virtual machine image is identified. Responsive to identifying that the virtual machine image catalog is authentic, a first digital signature to be sent with the virtual machine image is determined. Responsive to determining the signature, the virtual machine image and the signature is sent.