Combat Ident System
Abstract
MARK (MK) XIIA Mode 5 provides secure cooperative combat identification via Identification Friend or Foe (IFF). Mode 5 was developed in cooperation with North Atlantic Treaty Organization, with the DoD implementation governed by AIMS 03-1000A, AIMS 03-1000B and USN requirements defined in ORD # 577-06-01. IFF product improvements are designed to be installed through obsolescence mitigations, upgrades, technical refreshes, and deficiency correction studies, which in turn become engineering changes to IFF interrogators and transponders and their associated cryptographic material. Standards governed by AIMS 17-1000 and Crypto Modernization (CM) are required to be incorporated in future engineering changes. The Navy MK XIIA Mode 5 program was approved for entry in Systems Development and Demonstration phase in August 2003 and into the Production and Deployment Phase and Low Rate Initial Production in July 2006, and Full Rate Production July 2012. The Navy Mode 5 program achieved Initial Operational Capability (IOC) in 2012 in accordance with the ORD. Mode 5 capable equipment was fielded in USN/USMC platforms in accordance with Joint Requirements Oversight Council Memorandums (047-07, 122-08 and 108-13) in support of Joint Mode 5 IOC in 2014 and Joint Full Operational Capability in FY2020. In order to maintain cooperative encrypted Combat Identification (CID) capabilities across the fleet, sustainment and new development efforts must continue into the foreseeable future. Studies for future leading-edge non-cooperative CID technologies are being investigated. RDT&E articles include Mode 5 cryptographic modules and associated hardware and software changes for IFF interrogators and transponders, including, but not limited to: AN/APX-118/123, AN/APX-119, AN/APX-111, RT-2087/ZPX, and all associated test and support equipment. RDT&E units are required for government and contractor labs to support aircraft and ship integrations, test sites, test aircraft, and unmanned aircraft systems.
Document Details
- Document Type
- Project
- Publication Date
- Oct 01, 2025
- Source ID
- 1253_0604777N_5_1319_PB_2025
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