Ongoing Research Projects

NSF ITR: Automated Trust Negotiation in Open Systems.

  Collaborators: John Mitchell, Kent Seamons, William Winsborough, Marianne Winslett
  Research Assistants: Jiangtao Li
  Topics:
  • Finalizing the RT role-based trust-management framework
  • Distributed evaluation algorithm for RT1
  • RTML: An XML-based markup language for RT
  • Policy analysis in trust management
  • Safety (preventing information leakage) in automated trust negotiation
  • Cryptographic approaches to automated trust negotiation

Purdue Research Fundation: Administration of Role-Based Access Control

  Research Assistants: Mahesh V. Tripunitara
  Topics:
  • Security analysis in RBAC
  • Relationships between RBAC, DAC, and MAC
  • Administrative models for RBAC
  • RBAC in enterprise security management 

Privacy Languages

  Collaborators: Elisa Bertino, Annie Anton, Ting Yu
  Research Assistants: Ji-Won Byun
  Topics:
  • A formal semantics for P3P
  • A semantic-based privacy preference language
  • An expressive language for specifying privacy policies
  • Information flow control theory based on privacy policies

Access Control in Group Communication Systems

  Collaborators: Cristina Nita-Rotaru
  Topics:
  • A framework for role-based access control in group communication systems
 
Reputation Systems
  Research Assistants:  
  Topics:
  • Security analysis of existing reputation systems