Abstract: A method for performing anonymous authentication by an electronic device is described. The method includes obtaining biometric data. The method also includes enrolling biometric information based on the biometric data. The method also includes generating backup biometric information based on the biometric data. The backup biometric information includes a backup biometric template. The method also includes generating a backup public key and a backup private key. The method also includes enrolling the backup biometric information. Enrolling the backup biometric information includes distributing the backup biometric template, the backup public key and the backup private key among different entities.

Abstract: A method for anonymous authentication by an electronic device is described. The method includes obtaining biometric data. The method also includes generating a token. The method also includes blinding the token to produce a blinded token. The method also includes sending the blinded token and biometric information based on the biometric data to a verifier. The method also includes receiving a signature of the blinded token from the verifier if corresponding biometric information is not stored by the verifier.

Abstract: A method for performing anonymous authentication by an electronic device is described. The method includes obtaining biometric data. The method also includes enrolling biometric information based on the biometric data. The method also includes generating backup biometric information based on the biometric data. The backup biometric information includes a backup biometric template. The method also includes generating a backup public key and a backup private key. The method also includes enrolling the backup biometric information. Enrolling the backup biometric information includes distributing the backup biometric template, the backup public key and the backup private key among different entities.

Abstract: A method for encrypting biometric information by an electronic device is described. The method includes obtaining biometric data. The method also includes generating a biometric template based on the biometric data. The method also includes encrypting the biometric template. The method also includes sending the encrypted biometric template to a storage device.

Abstract: A method for anonymous authentication by an electronic device is described. The method includes obtaining biometric data. The method also includes generating a token. The method also includes blinding the token to produce a blinded token. The method also includes sending the blinded token and biometric information based on the biometric data to a verifier. The method also includes receiving a signature of the blinded token from the verifier if corresponding biometric information is not stored by the verifier.

Abstract: A method for using a confidence based ranking algorithm is described. At least one search parameter is received. The at least one search parameter is used to identify at least one data record with confidence values. A results list with one or more data records is created. The results list is ordered according to the confidence values within the data records. The results list is sent.

Abstract: A method for toll-based routing is described. A routing table that associates a cost and a quality factor with each destination in a network is built. One or more data packets are received. A neighboring node to send the one or more data packets is selected based on the routing table and user preferences of an originator or intended receiver of the one or more data packets. The one or more data packets are sent to the selected neighboring node. A routing report that indicates routing of the one or more data packets is sent to a toll service.

Abstract: A method for hosting an asset title is described. An asset title is received from a first user device. The asset title is stored. The method also includes communicating with an index to create a master title status and location record. The method may be performed by a registry.

Abstract: A method for using a confidence based ranking algorithm is described. At least one search parameter is received. The at least one search parameter is used to identify at least one data record with confidence values. A results list with one or more data records is created. The results list is ordered according to the confidence values within the data records. The results list is sent.