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CBAC Coalition-Based Access Control Vishwas Patil, TIFR. CBAC Presentation CBAC Coalition-Based Access Control Vishwas Patil, TIFR. CBAC Presentation

CBAC: “? ” § § Aim: - an access control model for organizations to CBAC: “? ” § § Aim: - an access control model for organizations to effectively participate in modern coalitions and enforcement mechanisms for coalition resources. Secure sharing requires that organizations be able to exercise fine-grained, policygoverned control over access to shared resources. Vishwas Patil, TIFR. CBAC Presentation

CBAC: Principles § § RBAC has limited role while addressing security policy enforcement issues CBAC: Principles § § RBAC has limited role while addressing security policy enforcement issues in collaborative environments. CBAC captures the entities involved in coalition resource sharing, identify the relationships among those entities, and detail requirements for building authorizations in coalition environments. Vishwas Patil, TIFR. CBAC Presentation

CBAC: Approach § § § Basic CBAC model layers coalition access control concepts on CBAC: Approach § § § Basic CBAC model layers coalition access control concepts on top of a simple RBAC model. Other CBAC models incorporate elements of TMAC and TBAC, which support the use of system context information in decisions to activate, synchronize and deactivate permissions. Figure 1, 2, and 3 show the different perspectives of various coalition stake- Vishwas Patil, TIFR. CBAC Presentation

Vishwas Patil, TIFR. CBAC Presentation Vishwas Patil, TIFR. CBAC Presentation

Vishwas Patil, TIFR. CBAC Presentation Vishwas Patil, TIFR. CBAC Presentation

Vishwas Patil, TIFR. CBAC Presentation Vishwas Patil, TIFR. CBAC Presentation

CBAC: Coalition Components § Coalition-level entities 9 COALITION, PARTNERORGANIZATION, PRINCIPALFUNCTION etc. § Organization-level entities CBAC: Coalition Components § Coalition-level entities 9 COALITION, PARTNERORGANIZATION, PRINCIPALFUNCTION etc. § Organization-level entities 9 ORGANIZATION, ORGANIZATIONRESOURCE, ORGANIZATIONASSET, ROLE, TEAM, TASK etc. § Operations-level entities 9 USER etc. Vishwas Patil, TIFR. CBAC Presentation

CBAC: Models § § CBACbasic CBACteam CBACtask CBACteam+task Vishwas Patil, TIFR. CBAC Presentation CBAC: Models § § CBACbasic CBACteam CBACtask CBACteam+task Vishwas Patil, TIFR. CBAC Presentation

CBAC: Discussion § § How different from RBAC? Advantages/disadvantages Vishwas Patil, TIFR. CBAC Presentation CBAC: Discussion § § How different from RBAC? Advantages/disadvantages Vishwas Patil, TIFR. CBAC Presentation