| 8 |   |   Ahn and Hong discuss a Linux implementation that uses UNIX groups to implement Static Separation of Duty [[http://orbit-lab.org/attachment/wiki/Internal/Rbac/RbacResources/WOSIS2004.pdf AH04]]. | 
          
          
            | 9 |   |   Ahn, Mohan, and Hong have implemented identity certificates and an access control server in C++ [[http://orbit-lab.org/attachment/wiki/Internal/Rbac/RbacResources/sdarticle.pdf AMH06]]. | 
          
          
            |   | 8 | Ahn and Hong discuss a Linux implementation that uses UNIX groups to implement Static Separation of Duty [[http://orbit-lab.org/attachment/wiki/Internal/Rbac/RbacResources/WOSIS2004.pdf AH04]]. | 
          
          
            |   | 9 |  | 
          
          
            |   | 10 | Ahn, Mohan, and Hong have implemented identity certificates and an access control server in C++ [[http://orbit-lab.org/attachment/wiki/Internal/Rbac/RbacResources/sdarticle.pdf AMH06]]. |