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Cyber Awareness Challenge: Which of the following is an appropriate use of a DoD Public Key Infrastructure token?

A. Accessing secure networks and systems
B. Encrypting sensitive communications
C. Authenticating to classified systems
D. Signing digital documents with non-repudiation

Answer :

Final answer:

One appropriate use of a DoD Public Key Infrastructure token is signing digital documents with non-repudiation using public-key cryptography. The correct option is d.

Explanation:

Public-Key Cryptography: One appropriate use of a DoD Public Key Infrastructure token is signing digital documents with non-repudiation. This involves encrypting a message with your private key to provide the digital equivalent of a signature, ensuring authenticity. This ensures the authenticity and integrity of digital communications and actions, as the PKI token pairs a public key for encryption with a private key for decryption and signing, ensuring the digital equivalent of a signature. This process, known as cryptographic signing, guarantees that the person signing is who they claim to be and that the message or document has not been altered after signing.

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