Information processing systems, information processing methods, and programs

Claims

1. A first conversion means that generates first converted information by applying a first conversion process to biometric information using a first key, The system includes a second conversion means that generates second converted information by applying a second conversion process to the first converted information using a second key, The first conversion process and the second conversion process are performed by different devices. Information processing system.

2. The first conversion process and the second conversion process include different types of conversion processes. The information processing system according to claim 1.

3. A first matching means that performs a first matching process using the first converted information, The system further comprises a second matching means for performing a second matching process using the second converted information. The information processing system according to claim 1 or 2.

4. The first key and the second key are used in common for the biometric information of different individuals. The information processing system according to claim 1 or 2.

5. A first key storage means for storing the first key, The system comprises a second key storage means for storing the second key, The first conversion process is a process of converting the biometric information using the first key that has been stored in advance. The second conversion process is a process of converting the first converted information using the second key that has been stored in advance. The information processing system according to claim 1 or 2.

6. When updating either the first key or the second key, with respect to the first and second registration information that have been converted and pre-registered using the first and second keys respectively, only one of the registration information will be updated. The information processing system according to claim 1 or 2.

7. The system further comprises a third conversion means for generating third converted information by applying a third conversion process to the second converted information using a third key, The first conversion process and the third conversion process are performed by different devices. The information processing system according to claim 1 or 2.

8. The third key is used in common for the biometric information of different individuals. The information processing system according to claim 7.

9. The first device uses the first key to perform a first transformation process on the biological information to generate the first transformed information. A second device, different from the first device, uses a second key to perform a second transformation process on the first transformed information to generate the second transformed information. Information processing methods.

10. The first device is instructed to perform a first transformation process on the biological information using the first key to generate the first transformed information. A program that causes a second device, different from the first device, to perform a second transformation process on the first transformed information using a second key to generate the second transformed information.