Final answer:
The KGV-72 is a key generator used in secure communication systems, primarily in military and government applications. It uses three keys: Key Encryption Key (KEK), Traffic Key (TK), and Initialization Vector (IV).
Step-by-step explanation:
The KGV-72 is a key generator that is used in secure communication systems. It is primarily used in military and government applications to encrypt and decrypt sensitive information. The three keys that the KGV-72 uses are the Key Encryption Key (KEK), the Traffic Key (TK), and the Initialization Vector (IV). The KEK is used to encrypt and protect the other two keys, while the TK is used to encrypt the actual data being transmitted. The IV is a random value that is used to ensure unique encryption for each message.