問95
頻出度★★★
バイオメトリクス認証の例として, 適切なものはどれか。
平成29年度 秋期 ITパスポート試験 問95
This question's explanation and your answers so far.
解説
問 95
Incorrectア
The pattern of connecting nine dots with a single stroke is merely information about the tracing order that the person “knows”; it does not measure any physical or behavioral trait. This is knowledge-based authentication (memory authentication), not biometric authentication.
Incorrectイ
A user ID and password verify a “knowledge” item — a string the person memorizes. Because they use no biometric trait at all, they do not constitute biometric authentication.
- ウ
正解 The correct answer is ウ. Biometric authentication verifies a person's identity using physical traits such as fingerprints, iris, veins, voiceprint, and face, or behavioral traits unique to the individual such as the handwriting, pen pressure, and stroke order of a signature. The authentication in ウ, which has a reader device identify the style of a signature and the stroke order and pen pressure when signing, measures and matches the unique behavioral traits that appear in the very act of writing; this is a typical example of behavioral biometrics, so it is appropriate.
Incorrectエ
Selecting a memorized combination from multiple illustrations is authentication based on a “knowledge” item — the order of images learned in advance (image authentication). Because it uses no physical or behavioral trait, it is not biometric authentication.
ここがポイント
- Biometric authentication verifies identity using traits unique to the individual — physical traits such as fingerprints, iris, veins, face, and voiceprint, or behavioral traits such as the handwriting, pen pressure, and stroke order of a signature.
- Passwords, patterns, and memorized image combinations are knowledge-based authentication that verifies “something the person knows,” and are distinct from biometric authentication.
用語