SSCP · Question #1290
SSCP Question #1290: Real Exam Question with Answer & Explanation
The correct answer is D: A seed number. OPIE (One-Time Passwords in Everything) challenges consist of a seed number and a sequence number, which the user combines with their passphrase to generate the correct one-time password.
Question
As telnet is widely know to be insecure, one time passwords (OPIE) offer a great alternative. After a user logs on remotely, OPIE will issue a challenge. What two elements will thi challenge contain?( Choose two)
Options
- ACHAP
- BA hashed value
- CA random value
- DA seed number
- EA sequence number
Explanation
OPIE (One-Time Passwords in Everything) challenges consist of a seed number and a sequence number, which the user combines with their passphrase to generate the correct one-time password.
Common mistakes.
- A. CHAP (Challenge-Handshake Authentication Protocol) is a different authentication protocol and is not an element contained within an OPIE challenge.
- B. A hashed value is the result of the user's calculation, not an element contained in the OPIE challenge issued by the server.
- C. A random value might be used to generate the seed, but the seed itself is the element provided in the challenge, not a generic 'random value.'
Concept tested. OPIE (One-Time Passwords) challenge components
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