| 主权项 |
1. A method comprising:
receiving a registration input including a first raw biometric template and a user identifier, the first raw biometric template representative of one or more unique features of a biometric characteristic of a user that is associated with the user identifier; generating a first transformed biometric template by applying a random projection of a random matrix to the first raw biometric template; communicating the first transformed biometric template and the user identifier to an authentication server; receiving a challenge input including a second raw biometric template and the user identifier; generating a second transformed biometric template by applying the random projection of the random matrix to the second raw biometric template; communicating the second transformed biometric template and the user identifier to the authentication server; and receiving a signal indicative of an authentication decision from the authentication server, wherein: the authentication decision is based on an approximate matching between the second transformed biometric template and the first transformed biometric template without allowing accessing to the first raw biometric template or the second raw biometric template, and the random matrix is published. |
