The design of a secure distributed system

摘要

CHOTS stands for Corporate Headquarters Office Technology Systemnand from the point of view of many of the users it is primarily annoffice automation system. CHOTS was, however, conceived as a secureninfrastructure that supports communication betweeen users and both localnand corporate applications and databases. The objective has been to giventhe user the same facilities that she would have in a large commercialnorganisation while at the same time protecting the data fromnunauthorised access by MOD staff as well as intruders. The authornintroduces the elements of secure distributed systems and how these arencombined in a practical realisation based on the CHOTS experience