Secure data processing system architecture

摘要: A data processing system having an architecture for protecting selected files. The unit includes a secure operating in manner independent of the operation remainder storing and comparing file attributes user entity attributes. comparison is performed accordance with table containing security context. alone able to manipulate special groups called distinguished objects. unti also manipulates object identifier that isolates indentification files from actual memory storage locations. Apparatus method are disclosed providing creation protected part eliminates interruption process. facilitates transfer between systems.