The first task in establishing a cryptographic system is selecting a cryptographic system standard for the dialogue.

• A. True
• B. False
• C. Not applicable
• D. Cannot determine

Answer: (A)

Starting with a defined cryptographic standard sets the foundation for the entire system. Choosing a standard provides vetted, well-analyzed algorithms and interfaces that ensure interoperability and predictable security properties. It guides decisions across encryption, integrity, key exchange, and digital signatures, and it helps determine appropriate parameter choices like key lengths and modes. Relying on a recognized standard also reduces the risk of introducing weak or untested, custom cryptography and supports compliance and audits. With a standard in place, subsequent design steps become consistent and secure, which is why this initial task is correct.