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    2008: 6

  1. Ram Krishnan, Jianwei Niu, Ravi Sandhu and William Winsborough, Stale-Safe Security Properties for Group-Based Secure Information Sharing. Proc. 6th ACM-CCS Workshop on Formal Methods in Security Engineering (FMSE), Alexandria, Virginia, October 27, 2008, pages 53-62. Full version. Presentation
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  2. Tim Finin, Anupam Joshi, Lalana Kagal, Jianwei Niu, Ravi Sandhu, William Winsborough and Bhavani Thuraisingham, ROWLBAC: Representing Role Based Access Control in OWL. Proc. 13th ACM Symposium on Access Control Models and Technologies (SACMAT), Estes Park, Colorado, June 11-13, 2008, pages 73-82. Presentation
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  3. Xinwen Zhang, Jean-Pierre Seifert and Ravi Sandhu, Security Enforcement Model for Distributed Usage Control Proc. 2nd IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing (SUTC), Taichung, Taiwan, June 11-13, 2008, pages 10-18. Presentation Keynote Lecture
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  4. Vana Kalogeraki, Dimitrios Gunopulos, Ravi Sandhu and Bhavani Thuraisingham, QoS Aware Dependable Distributed Stream Processing. Proc. 11th IEEE Symposium on Object Oriented Real-Time Distributed Computing (ISORC), Orlando, Florida, May 5-7, 2008, pages 69-75. Presentation
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  5. Ravi Sandhu and Venkata Bhamidipati, The ASCAA Principles for Next-Generation Role-Based Access Control . Proc. 3rd International Conference on Availability, Reliability and Security (ARES), Barcelona, Spain, March 4-7, 2008, pages xxvii-xxxii. Presentation Keynote Lecture
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  6. Xinwen Zhang, Dongyu Liu, Songqing Chen, Zhao Zhang and Ravi Sandhu, Towards Digital Rights Protection in BitTorrent-like P2P Systems. Proc.15th SPIE/ACM Multimedia Computing and Networking (MMCN), San Jose, CA USA, January 30-31, 2008, pages 68180F 1-12. Presentation
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    2007: 7

  7. Manoj Sastry, Ram Krishnan and Ravi Sandhu, A New Modeling Paradigm for Dynamic Authorization in Multi-domain Systems. Proc. Fourth International Conference on Mathematical Methods, Models, and Architectures for Computer Network Security, MMM-ACNS, Saint Petersburg, Russia, September 13-15, 2007. Published as Springer-Verlag Communications in Computer and Information Science, Volume 1, pages 153-158. Full version. Presentation
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  8. Shouhuai Xu and Ravi Sandhu, A Scalable and Secure Cryptographic Service. Proc. 21st IFIP WG 11.3 Working Conf. on Data and Applications Security, Redondo Beach, CA, July 8-11, 2007, pages 144-160. Published as Springer-Verlag Lecture Notes in Computer Science Vol. 4602, Data and Applications Security XXI (S. Barker and G. Ahn, editors), 2007. Full version. Presentation
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  9. Baoxian Zhao, Ravi Sandhu, Xinwen Zhang and Xiaolin Qin, Towards a Times-Based Usage Control Model. Proc. 21st IFIP WG 11.3 Working Conf. on Data and Applications Security, Redondo Beach, CA, July 8-11, 2007, pages 227-242. Published as Springer-Verlag Lecture Notes in Computer Science Vol. 4602, Data and Applications Security XXI (S. Barker and G. Ahn, editors), 2007. Presentation
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  10. Ezedin Barka and Ravi Sandhu, Framework for Agent-Based Role Delegation. Proc. IEEE International Conference on Communications (ICC), Glasgow, Scotland, June 24-28, 2007, pages 1361-1367. Presentation
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  11. Min Xu, Xuxian Jiang, Ravi Sandhu and Xinwen Zhang, Towards a VMM-based Usage Control Framework for OS Kernel Integrity Protection. Proc. 12th ACM Symposium on Access Control Models and Technologies (SACMAT), June 20-22, 2007, Sophia Antipolis, France, pages 71-80. Presentation
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  12. Ram Krishnan, Ravi Sandhu and Kumar Ranganathan, PEI Models towards Scalable, Usable and High-Assurance Information Sharing. Proc. 12th ACM Symposium on Access Control Models and Technologies (SACMAT), June 20-22, 2007, Sophia Antipolis, France, pages 145-150. Full version. Presentation
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  13. Xinwen Zhang, Michael Covington, Songqing Chen and Ravi Sandhu, SecureBus: Towards Application-Transparent Trusted Computing with Mandatory Access Control, AsiaCCS 2007. Presentation
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    14. 2006: 5

  14. Xinwen Zhang, Francesco Parisi-Presicce, and Ravi Sandhu, Towards Remote Policy Enforcement for Runtime Protection of Mobile Code Using Trusted Computing, IWSEC 2006. Presentation
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  15. Xinwen Zhang, Masayuki Nakae, Michael Covington and Ravi Sandhu, A Usage-based Authorization Framework for Collaborative Computing Systems, SACMAT 2006. Presentation
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  16. Ravi Sandhu, Kumar Ranganathan and Xinwen Zhang, Secure Information Sharing Enabled by Trusted Computing and PEI Models (Invited Talk), AsiaCCS 2006. Presentation
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  17. Xinwen Zhang, Ravi Sandhu, and Francesco Parisi-Presicce, Safety Analysis of Usage Control Authorization Models, AsiaCCS 2006. Presentation
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  18. Masayuki Nakae, Xinwen Zhang and Ravi Sandhu, A General Design Towards Secure Ad-Hoc Collaboration, AsiaCCS, 2006.
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    19. 2005: 1

  19. Ravi Sandhu and Xinwen Zhang, Peer-to-Peer Access Control Architecture Using Trusted Computing Technology, SACMAT 2005. Presentation
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    20. 2004: 8

  20. Ezedin Barka and Ravi Sandhu, Role-Based Delegation Model/ Hierarchical Roles (RBDM1), ACSAC 2004.
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  21. Mohammad Al-Kahtani and  Ravi Sandhu, Rule-Based RBAC with Negative Authorization, ACSAC 2004.
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  22. Ravi Sandhu, A Perspective on Graphs and Access Control Models (Invited Talk), ICGT 2004. Presentation
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  23. Jaehong Park, Xinwen Zhang,  and Ravi Sandhu, Attribute Mutability in Usage Control, IFIP11.3 2004. Presentation
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  24. Roshan Thomas and Ravi Sandhu, Towards a Multi-dimensional Characterization of Dissemination Control, POLICY, 2004.
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  25. Xinwen Zhang, Jaehong Park, Francesco Parisi-Presicce, Ravi Sandhu, A Logical Specification for Usage Control, SACMAT 2004. Presentation
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  26. S. Xu, W. Nelson Jr. and R. Sandhu, Enhancing Anonymity via Market Competition, Information Assurance and Security -- IEEE ITCC 2004.
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  27. Roshan Thomas and Ravi Sandhu, Models, Protocols, and Architectures for Secure Pervasive Computing: Challenges and Research Directions, IEEE PerSec'04.
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    28. 2003: 5

  28. Ravi Sandhu and Jaehong Park, Usage Control: A Vision for Next Generation Access Control, MMM-ACNS 2003. Presentation
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  29. Xinwen Zhang, Jaehong Park and Ravi Sandhu, Schema based XML Security: RBAC Approach, IFIP11.3 2003.
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  30. Xinwen Zhang, Sejong Oh and Ravi Sandhu, PBDM: A Flexible Delegation Model in RBAC, SACMAT 2003. Presentation
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  31. Mohammad A. Al-Kahtani and Ravi Sandhu, Induced Role Hierarchies with Attribute-Based RBAC, SACMAT 2003. Presentation
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  32. Shouhuai Xu and Ravi Sandhu. Two Efficient and Provably Secure Schemes for Server-Assisted Threshold Signatures, RSA-CT 2003. Presentation
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    33. 2002: 6

  33. Ravi Sandhu, Mihir Bellare, and Ravi Ganesan, Password Enabled PKI: Virtual Smartcards vs. Virtual Soft Tokens, PKIRW 2002. Presentation
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  34. Mohammad A. Al-Kahtani and Ravi Sandhu, A Model for Attribute-Based User-Role Assignment, ACSAC 2002. Presentation
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  35. Sejong Oh, Ravi S. Sandhu, A Model for Role Administration Using Organization Structure, SACMAT 2002. Presentation
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  36. Jaehong Park and Ravi Sandhu, Towards Usage Control Models: Beyond Traditional Access Control, SACMAT 2002. Presentation
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  37. Jaehong Park and Ravi Sandhu, Originator Control in Usage Control, POLICY 2002.
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  38. Shouhuai Xu and Ravi Sandhu, Authenticated Multicast Immune to Denial-of-Service Attack, SAC 2002.
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    39. 2001: 5

  39. Pete Epstein and Ravi Sandhu, Engineering of Role-Permission Assignments, ACSAC 2001.
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  40. Joon Park, Gail-Joon Ahn and Ravi Sandhu, Role-based Access Control on the Web Using LDAP, IFIP11.3 2001.
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  41. Savith Kandala and Ravi Sandhu, Secure Role-Based Workflow Models, IFIP11.3 2001.
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  42. Ravi Sandhu, Future Directions in Role-Based Access Control Models (Keynote Lecture), MMM-ACNS 2001. Presentation
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  43. Ezedin Barka and Ravi Sandhu, Framework for Role-Based Delegation Models, ACSAC 2000. Presentation
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    44. 2000: 7

  44. Jaehong Park, Ravi Sandhu and James Schifalacqua, Security Architectures for Controlled Digital Information Dissemination, ACSAC 2000. Presentation
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  45. Joon S. Park and Ravi Sandhu, Binding Identities and Attributes Using Digitally Signed Certificates, ACSAC 2000.
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  46. Ezedin Barka and Ravi Sandhu, A Role-Based Delegation Model and Some Extensions, NISSC 2000. Presentation
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  47. Venkata Bhamidipat and Ravi Sandhu, Push Architectures for User-Role Assignment, NISSC 2000.
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  48. Ravi Sandhu, Engineering Authority and Trust in Cyberspace: The OM-AM and RBAC Way, ACM RBAC 2000. Presentation
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  49. Ravi Sandhu, David Ferraiolo and Richard Kuhn, The NIST Model for Role-Based Access Control: Towards A Unified Standard, ACM RBAC 2000.
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  50. Gail-Joon Ahn, Myong Kang, Joon Park and Ravi Sandhu, Injecting RBAC to Secure a Web-Based Workflow System, ACM RBAC 2000. Presentation
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    51. 1999: 8

  51. Gail-Joon Ahn and Ravi Sandhu, The RSL99 Language for Role-Based Separation of Duty Constraints, ACM RBAC 1999.
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  52. Pete Epstein and Ravi Sandhu, Towards a UML Based Approach to Role Engineering, ACM RBAC 1999.
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  53. Joon S. Park and Ravi Sandhu, RBAC on the Web by Smart Certificates, ACM RBAC 1999.
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  54. Ravi Sandhu and Qamar Munawer, Simulation of the Augmented Typed Access Matrix Model (ATAM) Using Roles, INFOSECU 1999.
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  55. Ravi Sandhu and Qamar Munawer, The ARBAC99 Model for Administration of Roles, ACSAC 1999. Presentation
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  56. Joon S. Park and Ravi Sandhu, Smart Certificates: Extending X.509 for Secure Attribute Service on the Web, NISSC 1999. Presentation
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  57. Joon Park, Ravi Sandhu, and SreeLatha Ghanta, RBAC on the Web by Secure Cookies, IFIP11.3 1999.
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  58. Savith Kandala and Ravi Sandhu, Extending the BFA Workflow Authorization Model to Express Weighted Voting, IFIP11.3 1999.
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    59. 1998: 10

  59. Philip Hyland and Ravi Sandhu, Concentric Supervision of Security Applications: A New Security Management Paradigm, ACSAC 1998.
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  60. Ravi Sandhu and Gail-Joon Ahn, Group Hierarchies with Decentralized User Assignment in Windows NT, IASTED-CSE 1998.
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  61. Ravi Sandhu and Qamar Munawer, The RRA97 Model for Role-Based Administration of Role Hierarchies, ACSAC 1998.
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  62. Ravi Sandhu and Qamar Munawer, How to do Discretionary Access Control Using Roles, ACM RBAC 1998. Presentation
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  63. Ravi Sandhu, Role Activation Hierarchies, ACM RBAC 1998. Presentation
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  64. Ravi Sandhu and Venkata Bhamidipadi, An Oracle Implementation of the PRA97 Model for Permission-Role Assignment, ACM RBAC 1998. Presentation
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  65. Ravi Sandhu and Joon S. Park, Decentralized User-Role Assignment for Web-based Intranets, ACM RBAC 1998.
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  66. Philip Hyland and Ravi Sandhu, Management of Network Security Applications, NISSC 1998.
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  67. Ravi Sandhu and Gail-Joon Ahn, Decentralized Group Hierarchies in UNIX: An Experiment and Lessons Learned, NISSC 1998.
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  68. Chandramouli Ramaswamy and Ravi Sandhu, Role-Based Access Control Features in Commercial Database Management Systems (Winner of Best Paper Award), NISSC 1998.
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    69. 1997: 4

  69. Tarik Himdi and Ravi Sandhu, Lattice Based Models for Controlled Sharing of Confidential Information in The Saudi Hajj System, ACSAC 1997.
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  70. Ravi Sandhu, Venkata Bhamidipadi, Edward Coyne, Srinivas Ganta and Charles Youman, The ARBAC97 Model for Role-Based Administration of Roles: Preliminary Description and Outline, ACM RBAC 1997. Presentation
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  71. Ravi Sandhu and Venkata Bhamidipadi, The URA97 Model for Role-Based User-Role Assignment, IFIP11.3 1997. Presentation
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  72. Roshan Thomas and Ravi Sandhu, Task-based Authorization Controls (TBAC): A Family of Models for Active and Enterprise-oriented Authorization Management, IFIP11.3 1997.
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    73. 1996: 2

  73. Ravi Sandhu, Role Hierarchies and Constraints for Lattice-Based Access Controls, ESORICS 1996. Presentation
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  74. Ravi Sandhu, Access Control: The Neglected Frontier (Keynote Lecture), ACISP 1996. Presentation
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    75. 1995: 6

  75. Ravi Sandhu, Issues in RBAC, ACM RBAC 1995.
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  76. Ravi Sandhu, Roles Versus Groups, ACM RBAC 1995.
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  77. Ravi Sandhu, Rationale for the RBAC96 Family of Access Control Models, ACM RBAC 1995.
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  78. Fang Chen and Ravi Sandhu, Constraints for Role-Based Access Control, ACM RBAC 1995.
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  79. Jeremy Epstein and Ravi Sandhu, NetWare 4 as an Example of Role-Based Access Control, ACM RBAC 1995.
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  80. Fang Chen and Ravi Sandhu, The Semantics and Expressive Power of the MLR Data Model, OAKLAND 1995.
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    81. 1994: 7

  81. Roshan Thomas and Ravi Sandhu, Conceptual Foundations for a Model of Task-based Authorizations, CSFW 1994.
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  82. Ravi Sandhu, Edward Coyne, Hal Feinstein and Charles Youman, Role-Based Access Control: A Multi-Dimensional View, ACSAC 1994. Presentation
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  83. Ravi Sandhu and Srinivas Ganta, On the Expressive Power of the Unary Transformation Model, ESORICS 1994. Presentation
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  84. Roshan Thomas and Ravi Sandhu, Supporting Object-based High-assurance Write-up in Multilevel databases for the Replicted Architecture, ESORICS 1994.
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  85. Ravi Sandhu and Hal Feinstein, A Three Tier Architecture for Role-Based Access Control, NCSC 1994. Presentation
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  86. Paul Ammann and Ravi Sandhu, One-Representative Safety Analysis in the Non-Monotonic Transform Model, CSFW 1994.
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  87. Ravi Sandhu and Srinivas Ganta, On the Minimality of Testing for Rights in Transformation Models, OAKLAND 1994.
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    88. 1993: 9

  88. Roshan Thomas and Ravi Sandhu, Towards a Task-Based Paradigm for Flexible and Adaptable Access Control in Distributed Applications, NSP 1993.
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  89. Roshan Thomas and Ravi Sandhu, Concurrency, Synchronization, and Scheduling to Support High-assurance Write-up in Multilevel Object-based Computing, OOPSLA Workshop 1993.
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  90. Ravi Sandhu and Srinivas Ganta, Expressive Power of the Single-Object Typed Access Matrix Model, ACSAC 1993.
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  91. Ravi Sandhu and Sushil Jajodia, Referential Integrity in Multilevel Secure Databases, NCSC 1993.
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  92. Roshan Thomas and Ravi Sandhu, Discretionary Access Control in Object-Oriented Databases: Issues and Research Directions, NCSC 1993.
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  93. Roshan Thomas and Ravi Sandhu, Task Based Authorization: A Paradigm for Flexible and Adaptable Access Control in Distributed Applications, NCSC 1993.
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  94. Ravi Sandhu, On Five Definitions of Data Integrity, IFIP11.3 1993. Presentation
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  95. Roshan Thomas and Ravi Sandhu, Towards a Unified Framework and Theory for Reasoning about Security and Correctness of Multilevel Transactions, IFIP11.3 1993.
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  96. Ravi Sandhu and Srinivas Ganta, On Testing for Absence of Rights in Access Control Models, CSFW 1993.
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    97. 1992: 8

  97. Paul Ammann and Ravi Sandhu, Implementing Transaction Control Expressions by Checking for Absence of Access Rights, ACSAC 1992.
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  98. Ravi Sandhu and Sushil Jajodia, Polyinstantiation for Cover Stories, ESORICS 1992.
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  99. Ravi Sandhu, A Lattice Interpretation of the Chinese Wall Policy, NCSC 1992.
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  100. Ravi Sandhu and Gurpreet Suri, Implementation Considerations for the Typed Access Matrix Model in a Distributed Environment (Winner of Outstanding Paper Award), NCSC 1992.
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  101. Ravi Sandhu, The Typed Access Matrix Model, OAKLAND 1992.
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  102. Ravi Sandhu and Gurpreet Suri, Non-Monotonic Transformations of Access Rights, OAKLAND 1992.
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  103. Roshan Thomas and Ravi Sandhu, Implementing the Message Filter Object-oriented Security Model without Trusted Subjects, IFIP11.3 1992.
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  104. Paul Ammann, Richard Lipton and Ravi Sandhu, The Expressive Power of Multi-Parent Creation in Monotonic Access Control Models, CSFW 1992.
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    105. 1991: 10

  105. John McDermott, Sushil Jajodia and Ravi Sandhu, A Single-Level Scheduler for the Replicated Architecture for Multilevel Secure Databases, ACSAC 1991.
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  106. Paul Ammann, Ravi Sandhu and Gurpreet Suri, A Distributed Implementation of the Extended Schematic Protection Model, ACSAC 1991.
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  107. Ravi Sandhu, Roshan Thomas and Sushil Jajodia, Supporting Timing Channel Free Computations in Multilevel Secure Object-Oriented Databases, IFIP11.3 1991.
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  108. Ravi Sandhu and Sushil Jajodia, Honest Databases That Can Keep Secrets, NCSC 1991.
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  109. Ravi Sandhu and Gurpreet Suri, A Distributed Implementation of the Transform Model, NCSC 1991.
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  110. Ravi Sandhu, Roshan Thomas and Sushil Jajodia, A Secure Kernelized Architecture for Multilevel Object-Oriented Databases, CSFW 1991.
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  111. Edgar Sibley, James Michael and Ravi Sandhu, A Case Study of Security Policy for Manual and Automated Systems, COMPASS 1991.
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  112. Sushil Jajodia and Ravi Sandhu, Toward a Multilevel Secure Relational Data Model, SIGMOD 1991.
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  113. Paul Ammann and Ravi Sandhu, Safety Analysis for the Extended Schematic Protection Model, OAKLAND 1991.
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  114. Sushil Jajodia and Ravi Sandhu, A Novel Decomposition of Multilevel Relations into Single-Level Relations, OAKLAND 1991.
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    115. 1990: 8

  115. Paul Ammann and Ravi Sandhu, Extending the Creation Operation in the Schematic Protection Model, ACSAC 1990.
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  116. Sushil Jajodia, Ravi Sandhu and Edgar Sibley, Update Semantics for Multilevel Relations, ACSAC 1990.
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  117. Ravi Sandhu and Sushil Jajodia, Integrity Mechanisms in Database Management Systems, NCSC 1990.
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  118. Ravi Sandhu and Sushil Jajodia, Polyinstantiation Integrity in Multilevel Relations, OAKLAND 1990.
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  119. Ravi Sandhu, Separation of Duties in Computerized Information Systems, IFIP11.3 1990.
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  120. Sushil Jajodia and Ravi Sandhu, Polyinstantiation Integrity in Multilevel Relations Revisited,, IFIP11.3 1990.
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  121. Ravi Sandhu, Sushil Jajodia and Teresa Lunt, A New Polyinstantiation Integrity Constraint for Multilevel Relations, CSFW 1990.
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  122. Sushil Jajodia and Ravi Sandhu, A Formal Framework for Single Level Decomposition of Multilevel Relations, CSFW 1990.
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    123. 1989: 3

  123. Ravi Sandhu, Mandatory Controls for Database Integrity, IFIP11.3 1989.
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  124. Ravi Sandhu, Transformation of Access Rights, OAKLAND 1989.
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  125. Ravi Sandhu, Terminology, Criteria and System Architectures for Data Integrity, IWDI 1989.
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    126. 1988: 1

  126. Ravi Sandhu, Transaction Control Expressions for Separation of Duties, ACSAC 1988.
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    127. 1987: 1

  127. Ravi Sandhu, On Some Cryptographic Solutions for Access Control in a Tree Hierarchy, ACM-IEEE 1987.
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    128. 1986: 1

  128. Ravi Sandhu and Micheal Share, Some Owner-Based Schemes with Dynamic Groups in the Schematic Protection Model, OAKLAND 1986.
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    129. 1985: 1

  129. Ravi Sandhu, Analysis of Acyclic Attenuating Systems for the SSR Protection Model, OAKLAND 1985.
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    130. 1984: 1

  130. Ravi Sandhu, The SSR Model for Specification of Authorization Policies: A Case Study in Project Control, COMPSAC 1984.
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