Which of the following is related to protecting digital information?

Concept

Protecting digital information uses security principles and cryptographic techniques to preserve confidentiality, integrity, authenticity, and authorized access.

Cryptography is the broader field; encryption and decryption are complementary operations used within cryptographic systems.

Application

Apply these definitions to each listed term:

• Encryption converts plaintext into ciphertext so that the information is not readily readable without the required key or method.

• Decryption reverses that transformation for an authorized recipient, recovering readable plaintext from ciphertext.

• Cryptography provides the theories, algorithms, and protocols within which encryption, decryption, integrity checks, and authentication are designed.

• All of these includes encryption, decryption, and cryptography in one set-referential choice.

Cross-check

The three individual terms are linked at different levels: cryptography is the discipline, while encryption protects data representation and decryption restores authorized readability. Therefore each listed term is related to protecting digital information.

The answer is All of these.