BS ISO BRITISH STANDARD 7498-2:1989 Implementation of IS0 7498-2:1989 Information processing systems - Open systems Interconnection - Basic reference model- Part 2: Security architecture BSi TEDBYCOPYRIGHTLAW BSISO 7498-2:1989 Committees responsible f for this British Standard The preparation of this British Standard was entrusted by the Information Technology Systems Standards Policy Committee (IST/-)toTechnical Committee IST/21, upon which the following bodies were represented: Association for Payment Clearing Services British Computer Society British Gas plc British Railways Board British Telecommunications plc Computing Services Association Department of Trade and Industry Alvey (Advanced Network Systems Architecture) Department of Trade and Industry (Information Technology Division) Department of Trade and Industry (National Physical Laboratory) EEA (the Electronics and Business Equipment Association) HM Treasury (Central Computer and Telecommunications Agency) Institute of Chartered Secretariesand Administrators Institution of Electrical Engineers Inter-universities Computing Committee Joint Network Team Mercury Communications Limited Ministry of Defence National Health Services Post Office UnitedKingdomAtomicEnergyAuthority University of London Computer Centre This British Standard, having cat been prepared under the direction of the Information Technology Systems Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on Amendments issued sincepublication 30November1990 St Amd. No. Date Comments CBSI03-1999 The following BSI references relate to the work on this standard: Committee reference IST/21 Draft for comment DD 148 ISBN0580190684 BSISO7498-2:1989 Contents Page Committees responsible Inside front cover National foreword i Foreword ii Text of ISO 7498-2 1 @BSI 03-1999 1