Which term denotes a device that performs encryption and decryption through cryptographic logic?

• A. Cryptographic device
• B. Custodian
• C. Courier
• D. Cyber incident

Answer: (A)

This term refers to a device designed to carry out encryption and decryption through built-in cryptographic logic. It can be hardware or software, but its defining feature is that it hosts cryptographic algorithms and securely manages keys to transform plaintext into ciphertext and back. This distinguishes it from a custodian (a person who protects assets), a courier (someone who transports), or a cyber incident (an security event). In practice, examples include hardware security modules or dedicated encryption devices that perform cryptographic operations directly, without exposing keys to ordinary applications.