DOD Wireless devices must by law adhere to FIPS encryption requirements,
FIPS stands for the Federal Information Processing Standard and the full title it is known by is FIPS PUB 140-2.
Why must DOD devices adhere to FIPS requirements?
Well, for starters FIPS PUB 140-2 is a security standard set for digital devices and computers by the US government itself!It's role was intended to allow security professionals a standard by which to measure up cryptographic modules.
Here's an example of a product that is FIPS certified. Mocana is a mobile app protection platform, and the following video shows how it is adhering to these required security standards.