Authentication device, authentication method and program storage medium
First Claim
1. An authentication device comprising:
- a processor executing instructions to;
compare multiple types of biological information acquired from a target person of identity verification as acquired biological information with the same type of registered biological information preliminarily registered and calculate an authentication score representing a degree of similarity between the acquired biological information and the registered biological information, for each type of the acquired biological information;
calculate, for each type of the acquired biological information, a probability that the target person of identity verification is fraudulently pretending to be the registered person who registered the registered biological information as an identity fraud probability, by utilizing the calculated authentication score; and
carry out at least one of a determination whether the target person of identity verification is the registered person and a determination whether the target person of identity verification is fraudulently pretending to be the registered person, utilizing the identity fraud probability.
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Accused Products
Abstract
The purpose of the present invention is to prevent a reduction in authentication accuracy caused by identity fraud. A score calculation unit compares each of a plurality of types of biological information, acquired as acquired biological information from a target person of identity verification, to the same type of registered biological information registered in advance. Based on the comparison, the score calculation unit calculates an authentication score that expresses the degree of similarity between the acquired biological information and the registered information, for each type of acquired biological information. For each type of the acquired biological information, a probability calculation unit calculates as an identity fraud probability using the calculated authentication score to. A determination unit determines whether the target person of identity verification is the registered person, and/or determines whether the target person of identity verification is fraudulently pretending to be the registered person.
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Citations
7 Claims
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1. An authentication device comprising:
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a processor executing instructions to; compare multiple types of biological information acquired from a target person of identity verification as acquired biological information with the same type of registered biological information preliminarily registered and calculate an authentication score representing a degree of similarity between the acquired biological information and the registered biological information, for each type of the acquired biological information; calculate, for each type of the acquired biological information, a probability that the target person of identity verification is fraudulently pretending to be the registered person who registered the registered biological information as an identity fraud probability, by utilizing the calculated authentication score; and carry out at least one of a determination whether the target person of identity verification is the registered person and a determination whether the target person of identity verification is fraudulently pretending to be the registered person, utilizing the identity fraud probability. - View Dependent Claims (2, 3, 4, 5)
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6. An authentication method comprising:
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comparing multiple types of biological information acquired from a target person of identity verification as acquired biological information with the same type of registered biological information preliminarily registered; calculating, for each type of the acquired biological information, an authentication score representing a degree of similarity between the acquired biological information and the registered biological information based on the comparison result; calculating, for each type of the acquired biological information, a probability that the target person of identity verification is fraudulently pretending to be a registered person who registered the registered biological information as an identity fraud probability, utilizing the calculated authentication score; and carrying out at least one of a determination whether the target person of identity verification is the registered person and a determination whether the target person of identity verification is fraudulently pretending to be the registered person, utilizing the identity fraud probability.
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7. A non-transitory computer-readable recording medium recorded with a program that causes a computer to execute:
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a process of comparing multiple types of biological information acquired from a target person of identity verification as acquired biological information with same type of registered biological information preliminarily registered; a process of calculating, for each type of the acquired biological information, an authentication score that represents a degree of similarity of the acquired biological information and the registered information based on the comparison result; a process of calculating, for each type of the acquired biological information, a probability that the target person of identity verification is fraudulently pretending to be a registered person who registered the registered biological information as an identity fraud probability utilizing the authentication score; and a process of carrying out at least one of a determination whether the target person of identity verification is the registered person and a determination whether the target person of identity verification is fraudulently pretending to be the registered person, utilizing the identity fraud probability.
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Specification