ABC Corporation has introduced token-based authentication to system administrators due to the risk of password compromise. The tokens have a set of HMAC counter-based codes and are valid until they are used. Which of the following types of authentication mechanisms does this statement describe?
A. TOTP
B. PAP
C. CHAP
D. HOTP
Answer:D
ABC Corporation has introduced token-based authentication to system administrators due to the risk of password compromise. The tokens have a set of HMAC counter-based codes and are valid until they are used. Which of the following types of authentication mechanisms does this statement describe?
A. TOTP B. PAP C. CHAP D. HOTP
Explanation: The question states that the HMAC counter-based codes and are valid until they are used. These are “one-time” use codes.