XML Cross-Domain Guard

XML Cross-Domain Guard (X2DG) is an advanced rules-based solution to the problem of sharing content across security domains. Operating a guard product typically requires a “man in the loop.” And changing the behavior of a guard typically requires skilled and time-consuming reprogramming. Within military coalitions and among intelligence organizations such delays are unacceptable. X2DG allows a policy officer with no programming background to create and modify content access rules and cross-domain transformations (sanitization). X2DG’s compilers quickly translate the policy officer’s point-and-click selections to Extensible Access Control Markup Language (XACML) and Extensible Stylesheet Language Transformations (XSLT). At run-time X2DG creates a customized XSLT transform to match the clearance level of the viewer. X2DG therefore exploits XML technologies in order to provide reliable unmediated cross-domain content filtering. In addition, X2DG’s compilers offer “Intention Assurance,” enabling the unmediated system to generate code—XACML and XSLT—that is certifiably correct. The commercial market for X2DG includes any organization that seeks to share content and media of any variety in a secure and policy-based manner.