| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently perform one-to-multiple authentication between input information and encrypted encryption authentication information.SOLUTION: A one-to-multiple authentication system includes: a storage unit for storing, for each of a plurality of users, encryption authentication information obtained by encrypting, by using key information and using a specific rule, authentication information used for user authentication; a comparison unit for comparing, on the basis of the specific rule while keeping a state in which the authentication information is encrypted, input information input as an authentication target with a plurality of pieces of encryption authentication information stored in the storage unit; an identification unit for identifying, on the basis of a result of the comparison by the comparison unit, encryption authentication information satisfying a condition determined on the basis of a characteristic of the key information; and a determination unit for determining the propriety of authentication for the authentication target on the basis of the encryption authentication information identified by the identification unit, the input information, and the key information.</p> |
