[amp_mcq option1=”availability” option2=”message integrity” option3=”nonrepudiation” option4=”confidentiality” correct=”option1″]
The correct answer is A. Availability.
Availability is the assurance that authorized users will be able to access information and services when they need them. Encryption does not directly affect availability, as it does not prevent authorized users from accessing information. However, encryption can indirectly affect availability if it is not implemented correctly. For example, if an encryption key is lost or forgotten, authorized users may not be able to access information that is encrypted with that key.
Message integrity is the assurance that a message has not been altered in transit. Encryption can help to ensure message integrity by making it difficult for unauthorized users to modify a message without being detected.
Nonrepudiation is the assurance that the sender of a message cannot deny having sent the message. Encryption can help to ensure nonrepudiation by providing a way to verify the sender’s identity.
Confidentiality is the assurance that information is not disclosed to unauthorized individuals. Encryption is the most common way to protect confidentiality. It does this by scrambling the information so that it cannot be read without the encryption key.
In conclusion, the correct answer is A. Availability.