IPA IP 2022 Question 75

A question IPA Japan published in 令和4年度 ITパスポート試験公開問題問75, translated into English. ITPEC is based on the same exams.

Which of the following is an appropriate description concerning biometric authentication?

a)Authentication that uses fingerprints or veins easily leaks authentication information through acts of peeping such as shoulder hacking.b)Because the device is large, it cannot be installed in mobile phones or smartphones.c)It also includes methods that use behavioral characteristics of the person, such as handwriting and keystrokes.d)There is no risk of mistakenly authenticating another person as the genuine person.

Explanation

It also covers behavioural traits such as handwriting and keystrokes — biometric authentication uses physical or behavioural characteristics of the person.

Biometrics are of two kinds:

•Physical characteristics: fingerprint, finger or palm vein, face, iris, retina
•Behavioural characteristics: handwriting (the pressure and speed of a signature), keystroke rhythm, voice, gait

Answer (c)

Why not others:

•(a) — shoulder hacking steals what is typed or shown, such as a password; looking at someone does not copy their fingerprint or vein pattern
•(b) — fingerprint and face sensors are built into most smartphones
•(d) — biometric matching is a comparison within a tolerance, so a false acceptance (another person accepted) is always possible; lowering it raises the false rejection rate

Key rule: Biometrics are physical or behavioural traits; matching is probabilistic, with a trade-off between false acceptance and false rejection.

Security · AI-written, may contain errors

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This question comes from the past questions IPA Japan publishes, translated into English by ITPEC Practice. ITPEC Practice is an independent study tool and is not affiliated with IPA or ITPEC. See the original paper (PDF) or Report an issue.