Pentagon prepares F-35 for quantum computing risk

The F-35 Joint Program Workplace is making ready to switch the fighter’s In-Line File Encryption Machine software program to help government-mandated quantum-resistant algorithms, in keeping with a presolicitation discover revealed on Could 6, 2026.

The discover, issued by way of Naval Air Methods Command, alerts that the F-35 program is starting the method of hardening one of many plane’s core cryptographic methods towards the risk posed by future quantum computer systems. The F-35 JPO intends to solicit, negotiate, and award a sole supply contract to Lockheed Martin Aeronautics beneath FAR 6.103-1, the federal acquisition regulation provision overlaying instances the place just one accountable supply can fulfill company necessities. Functionality statements from different potential offerors are due by Could 21, 2026.

The In-Line File Encryption Machine is the {hardware} and software program element liable for encrypting and defending the signed code contained in the F-35’s methods. Modifying its software program to include quantum-resistant algorithms means changing or augmenting the present cryptographic foundations with mathematical approaches particularly designed to stay safe towards an adversary utilizing quantum computing to interrupt encryption. That risk just isn’t theoretical — the U.S. authorities has been working for years by way of the Nationwide Institute of Requirements and Expertise to ascertain quantum-resistant cryptographic requirements, and the mandate to implement these requirements throughout authorities methods is now reaching operational navy platforms just like the F-35.

The sensible problem the contract discover identifies is as necessary because the cryptographic one. The seller should confirm that the software program replace may be utilized within the area with out opening the enclosure — that means the modification needs to be deployable to plane at working bases world wide by way of regular software program replace procedures, with out requiring the bodily gadget to be disassembled, returned to a depot, or changed outright. For a fighter jet deployed throughout greater than a dozen nations and operated by Air Pressure, Navy, and Marine Corps items in numerous areas, the flexibility to push a cryptographic replace by way of field-level procedures somewhat than requiring {hardware} returns is a big logistical requirement that shapes how the contract have to be written and executed.

Lockheed Martin Aeronautics’ sole supply designation rests on the identical rationale that governs most F-35 software program work: as the only real designer, developer, and integrator of the plane, LM Aero is the one entity with the expertise and technical experience wanted to switch and combine IFED software program, in keeping with the discover. That judgment isn’t merely procedural. The F-35’s software program structure is among the many most advanced in any operational weapon system, with thousands and thousands of strains of code governing the whole lot from flight management to sensor fusion to weapons employment. Modifying a cryptographic subsystem inside that structure requires intimate information of the way it interacts with each adjoining system, what failure modes a foul replace might introduce, and the way the testing and verification course of must be structured to make sure nothing breaks within the strategy of hardening the encryption. No different firm has that information base, and constructing it from scratch would take longer than the federal government’s timeline permits.

The quantum computing risk to navy cryptography has been transferring from a distant concern to an energetic planning requirement sooner than many anticipated. The core drawback is that the encryption algorithms at the moment defending most safe communications and information — together with these on navy platforms — had been designed beneath the idea that no laptop might issue giant numbers or clear up discrete logarithm issues in any sensible timeframe. Quantum computer systems, as soon as sufficiently succesful, can break that assumption utilizing algorithms like Shor’s algorithm that run exponentially sooner on quantum {hardware} than on classical machines. An adversary that acquires a succesful quantum laptop might retroactively decrypt beforehand intercepted communications and, extra instantly related to the F-35 context, probably compromise the cryptographic verification mechanisms that guarantee software program working on the plane is authentic and unmodified.

The F-35 carries a collection of categorised capabilities whose safety relies on the integrity of its cryptographic structure. The IFED particularly handles the verification of signed code, that means it’s the gatekeeper that confirms the software program working on the plane is allowed and hasn’t been tampered with. A quantum-vulnerable IFED is a possible assault floor not only for information theft however for code integrity compromise — a way more critical concern for a platform whose software program defines its fight effectiveness and mission security. Updating that element to quantum-resistant requirements is due to this fact not a routine safety patch however a basic improve to the plane’s cyber resilience.