Topologically and Geographically Accurate DTED Compression

The Navy needed a trusted Compartmented Mode Workstation (CMW)equivalent to the Navy's Secure Tactical Access Terminal (STAT).In response, Physical Optics Corporation (POC) proposed aninnovative, low-cost workstation technology that is superior tothe Navy's STAT in performance, security, fault tolerance, andfriendly user interfaces. The design of POC's Multilevel SecureWorkstation (POC-MLSW) achieves a multilevel assurance systemusing low-cost, commercial-off-the-shelf (COTS) hardware andsoftware with no modification to the computer hardware andoperating system, thus providing an upgrade path for both COTShardware and software. The POC-MLSW design represents asignificant architecture for future computer security systems andan excellent replacement for a broad range of the Navy's workstations and computers used today, including the CVN-71 STAT. ThePOC-MLSW is based on a unique combination of multiple single-boardcomputers (SBCs) and an intelligent secure Access Control Switch(ACS). In Phase II, POC will develop and integrate a complete setof hardware and software components into a fully functionalPOC-MLSW system prototype. In Phase III, the POC-MLSW will undergoCommon Criteria Security evaluation and the POC-MLSW products willbe brought to the widespread security market place.