ITPEC IP October 2024 Question 35
Which of the following is the appropriate example of biometric authentication?
Explanation
Reading the trail and pressure of a signature written with a touch pen — the question asks for authentication by a physical or behavioural trait of the person.
Biometric authentication identifies a person by what they are (fingerprint, face, iris, vein pattern) or how they behave. Dynamic signature verification is behavioural: it compares the stroke trail, writing speed and pen pressure, which are hard to imitate even if the shape of the signature is copied.
Answer (c)
Why not others:
- •(a) — this is CAPTCHA, which checks that the user is a human rather than a program, not who the person is
- •(b) — a password is knowledge; a software keyboard only guards against keyloggers
- •(d) — a secret question is also knowledge, not a trait of the body
Key rule: Biometrics use something you are or do; passwords and secret questions are something you know; CAPTCHA only separates humans from bots.
Security · AI-written, may contain errors
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