Cryptography’s Importance in Government Cryptography is one of the most influential and important assets pertaining to government today. Cryptography is the mathematical science of preparingcommunication incoherent to parties unintended to receive the message. A presidential directive at 12:01, on November 4, 1952, established the National Security Agency (NSA) as a separate, secret organized agency within the Department of Defense (DoD) in this directive, President Truman appointed the Secretary of Defense as Executive Agent for the signal intelligence & communications security activit