The person the supplicant claims to be is the true party.

• A. True
• B. False
• C. Sometimes
• D. Not necessarily

Answer: (A)

Authentication is about proving you are who you claim to be. When the supplicant presents credentials and those credentials successfully prove the claimed identity, that identity is the true party—the rightful owner of those credentials. So, the statement is true because the purpose of authentication is to bind the claimed identity to the actual person or entity possessing the credentials. In real life, breaches can occur, but the principle remains: a successful authentication confirms that the supplicant’s claimed identity matches the true party.