What additional function does the KYV-5 provide along with encryption and decryption?

The KYV-5 is a tactical encryption device primarily used in secure communications. In addition to its core functions of encryption and decryption, the KYV-5 provides an important layer of security through access control. This means that it ensures that only authorized users or devices can access the encrypted information, preventing unauthorized interception or use.

The aspect of access control is critical in military communications, as it helps to maintain the confidentiality and integrity of sensitive information. By controlling who can access the encryption keys and encrypted communications, the KYV-5 enhances the overall security architecture of Navy communications. This function is essential in maintaining operational security and ensuring that only intended recipients can decrypt and understand the transmitted messages.