The present description refers in particular to a computer-implemented method, a computer system, and a computer program product. The method may comprise providing authentication enforcement at resource level by specifying at design time at least one authentication key for at least one data storage unit of a resource. A request may be received at a server from a requester through a client to access the resource. Authentication of the requester may be enforced through the at least one authentication key at the at least one data storage unit of the resource.