Search results
Results from the WOW.Com Content Network
Learn about the different types of identity documents issued by the U.S. Department of Defense to identify a person as a member of the Armed Forces or a dependent. See the colors, features, and functions of the Common Access Card, the Next Generation USID card, and the legacy ID cards.
BATCO is a low-level encryption system used by the British Army since the 1980s. It involves encoding numbers into letters using vocabulary cards and cipher sheets, and is taught as a back-up to secure radios.
The common access card (CAC) is a smart card used by U.S. defense personnel and some civilians for identification, access, and authentication. It contains personal information, photo, fingerprint, and encryption key, and can be used for various purposes such as computer networks, Geneva Conventions, and travel.
Gold Codes are the launch codes for nuclear weapons provided to the president of the United States by the National Security Agency. The president must memorize the codes on a plastic card called "the biscuit" and authenticate them to the National Military Command Center before ordering a nuclear attack.
An Emergency Action Message (EAM) is a preformatted message that directs nuclear-capable forces to execute specific attack options in a nuclear war. Learn how the EAM system works, its history, and its role in popular culture.
Bead Window is a code word used by various military forces to indicate the last transmission potentially disclosed unauthorized information. It is one of the American standardized brevity code words for multiservice operations and does not include words unique to single service operations.
Learn about the standard military radiogram format for voice, Morse code, or TTY transmission. See the structure, history, and examples of the 16-line message format.
The simplest example of a challenge-response protocol is password authentication, where the challenge is asking for the password and the valid response is the correct password. An adversary who can eavesdrop on a password authentication can authenticate themselves by reusing the intercepted password. One solution is to issue multiple passwords ...