Trishul is an system primarily designed to help enforce policies 
associated with data/information. At the core of the architecture 
is a Java Virtual Machine (JVM) implementation that supports information 
flow control.

This work was done as part of Ph.D. work of Srijith Nair (https://srijith.net)
at Vrije Universiteit, Amsterdam. Patrick Simpson developed a lot of the 
code for Trishul. More details can be found at https://srijith.net/vu/trishul/

The code contained here is based off v1.1.7 of the Kaffee JVM and 
was released on 6th Nov 2008.

If you are face any difficulty in compiling and installing Trishul, 
an Ubuntu 6.10 VM is available as virtual appliance for ease of use. 
Please email me for more information.

[1] Srijith K. Nair, Gabriela Gheorghe, Bruno Crispo and Andrew S. Tanenbaum, 
"Enforcing DRM Policies Across Applications", 8th ACM DRM Workshop (DRM 2008), 
Co-located with ACM CCS 2008, pp. 87-94, October 27, 2008, Alexandria, Virginia, 
USA.

[2] Srijith K. Nair, Patrick N.D. Simpson, Bruno Crispo and Andrew S. Tanenbaum, 
Trishul: A Policy Enforcement Architecture for Java Virtual Machines
Technical Report IR-CS-045, Department of Computer Science, Vrije Universiteit, May 2008.

[3] Srijith K. Nair, Patrick N.D. Simpson, Bruno Crispo and Andrew S. Tanenbaum,
"A Virtual Machine Based Information Flow Control System for Policy Enforcement"
Electronic Notes in Theoretical Computer Science, Vol. 197, Issue 1, 21 February 2008, 
pp. 3-16, Proc. of the First International Workshop on Run Time Enforcement for Mobile 
and Distributed Systems (REM 2007), Sep 27, 2007, Dresden, Germany. 
(doi:10.1016/j.entcs.2007.10.010), 

[4] Srijith K. Nair, Patrick N.D. Simpson, Bruno Crispo and Andrew S. Tanenbaum, 
"Design and Implementation of a Virtual Machine Based Information Flow Control System"
Technical Report IR-CS-040, Department of Computer Science, Vrije Universiteit, May 2007.

[5] Srijith K. Nair, Bruno Crispo, Andrew S. Tanenbaum, 
"Towards a Secure Application-semantic Aware Policy Enforcement Architecture", 
Proceedings of the 14th International Workshop on Security Protocols 2006, Cambridge, UK,
 pages 26-31. Springer-Verlag LNCS 5087, 2009. (B. Christianson, B. Crispo, J.A. Malcolm, 
and M. Roe, editors)