Keyphrases
- access control
- security policies
- security requirements
- access requests
- role based access control
- distributed systems
- trust management
- data security
- lightweight
- fine grained
- information security
- security model
- dynamic access control
- security mechanisms
- smart card
- trust negotiation
- security analysis
- network security
- security problems
- role assignment
- access control policies
- computer security
- rbac model
- intrusion detection
- security systems
- security issues
- usage control
- database security
- access control models
- object oriented
- access control systems
- access control mechanism
- security measures
- security threats