To stay relevant, the National Institute of Standards and Technology (NIST) has created and adjusted U.S. security policies for cryptographic modules.

Enabling military and civilian government operations to dynamically interconnect Local Area Networks (LANs), wireless technologies are a lifesaver in environments where wired connections are cost-prohibitive or just not practical. However, transmitting sensitive information over the airwaves presents security challenges including passive attacks and active attacks. Enter Layer 2 encryption, which can effectively thwart these security challenges. (U.S. Air Force photo by Senior Airman Julianne Showalter)