NETWORK SECURITY FROM GEC-MARCONI SECURE SYSTEMS The increasing growth in Information Technology and the creation of data networks throughout government, commerce and industry has brought with it the problem of protecting sensitive information. GEC-Marconi Secure Systems has been involved in the security aspect of network management for over 40 years and can qffer this experience to clients in the form of network security solutions from consultancy through to system implementation, training and after sales support. WORLDWIDE INFORMATION SECURITY GEC-Marconi Secure Systems With the recent increases in computer crime the number of companies and other establishments requiring data security has grown enormously. Some of the obvious targets include banks and finance houses, government services and large multinational companies. In fact, anyone using a data network to move sensitive information is at risk. There are various ways of protecting networks and the techniques employed to do so depend on both the application and the perceived threat. Three main areas of protection may be defined as shown below: ACCESS CONTROL A technique used to control and monitor a system and only allow access to authorised users. ENCRYPTION Used to prevent unauthorised eavesdropping. AUTHENTICATION Used to prevent the injection of false messages into the system and also to prevent natural data corruption from causing chaos. The GEC-Marconi Secure Systems solution to network security may consist of any combination of the three areas outlined above. GEC-Marconi Secure Systems network security solutions are based on a set of system security requirements as shown below: The amount of sensitive data to be handled by the network should be minimised. The implementation of the security system should not add to the network’s operational complexity. The security system must be capable of withstanding the effects of significant network growth. The reliability of the network must not be prejudiced by the addition of security. By adhering to these requirements our secure systems can provide the most convenient and cost effective solutions to all types of network and system security problems. An excellent record in the specification, design and implementation of large systems in the area of Information Technology security is evidence of our total systems capability. A wealth of experience on many different projects has kept the company at the leading edge of secure systems technology. GEC-Marconi Secure Systems has provided secure sub-systems for international EFTPoS (Electronic Funds Transfer at Point of Sale) banking networks as well as substantial military and commercial data networks. For further information please contact the sales office at the address below. © GEC-Marconi Secure Systems 1991 A Division of Marconi Defence Systems Limited. This publication provides outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service. A GEC-Marconi Company Head Office: GEC-Marconi Secure Systems, Wavertree Boulevard, Wavertree Technology Park, Liverpool, L7 9PE, U.K. Tel: 051-228 0988 Fax: 051-254 1194 Telex: 6270S3 MARSEC G Sales Office: GEC-Marconi Secure Systems Browns Lane, The Airport, Portsmouth, Hampshire P03 5PH, U.K. Tel: 0705 664966 Direct Line: 0705 674113 Fax: 0705 674219 Telex: 869442 MSRS BL G North American Office: AEPOS Technologies Corporation, 75, Boulevard de la Technologie, Suite 200, Hull, Quebec, Canada, J8Z3G4. Tel: 819 770 6692 Fax: 819 770 9890.