1. A method-comprising: receiving, by a processor, a consumer request comprising a product-related certificate representative of a computer-related product resident to a client computer, a sender's public key, and a product attribute, the product related certificate comprising data relating to an entitlement certificate assigned to the client computer for governing access to a repository of computer installation products and a resource identifier for identifying a location of the repository of computer installation products identifying, by the processor, a product entitlement from the product related certificate; identifying, by the processor, the resource identifier in the entitlement certificate associated to the product attribute; mapping, by the processor, the resource identifier to the product attribute; mapping the uniform resource identifier to the unique identifier, and returning to the client computer a response specifying a client computer access right to the location of the repository, the client computer access right defined using the mapping of the resource identifier to the product attribute.