Keyphrases
- access control
- security policies
- security requirements
- role based access control
- data security
- distributed systems
- access requests
- trust negotiation
- fine grained
- security mechanisms
- security problems
- trust management
- information security
- dynamic access control
- security model
- object oriented
- access control models
- network security
- access control policies
- intrusion detection
- rbac model
- object management
- computer security
- security issues
- lightweight
- conflict resolution
- access control mechanism
- information systems
- sensitive data
- software architecture
- digital rights management
- trust relationships
- smart card
- security level
- statistical databases
- security systems
- database security
- security analysis