A middleware system and corresponding methods are described whereby data communications, either inter-device or intra-device, are coordinated using a set of cryptographic identifiers that correspond to computing elements, such as interfaces, methods, parameters, classes, among others. The cryptographic identifiers are coupled to data messages being sent across the middleware system and processed to indicate adherence to protocol standards and/or to cause transformation of the data messages such that the receiver receives a data message adhering to their acceptable protocol standards.