Securing information in X.25 networks

Requirements for secure communication measures which have been brought about by fundamental changes in communication networks are outlined. A security architecture and protocols that offer an efficient and effective security solution for military and commercial applications are discussed. An implementation of this architecture, intended to secure information in X.25 data networks, is described. It is concluded that this approach provides a practical basis for network security for unclassified but sensitive traffic for commercial, government, and military users