Method, apparatus, and system for processing two-dimensional barcodes

    公开(公告)号:US11336435B2

    公开(公告)日:2022-05-17

    申请号:US17341188

    申请日:2021-06-07

    Abstract: This specification describes techniques for processing service requests. An electronic credential request including a user identifier is received from a client. An electronic credential that corresponds to the user identifier and a user public key that corresponds to the user are retrieved. A hash operation is performed on the user public key and the electronic credential by using a hash algorithm to obtain a hash value that is signed within a predetermined time period. Server signature information is generated using the hashed credential, and transmitted with the electronic credential to the client. The server signature information is cryptographically verifiable by the client and enables the client to generate a two-dimensional barcode based on the electronic credential.

    METHOD, APPARATUS, AND SYSTEM FOR PROCESSING TWO-DIMENSIONAL BARCODES

    公开(公告)号:US20210297247A1

    公开(公告)日:2021-09-23

    申请号:US17341188

    申请日:2021-06-07

    Abstract: This specification describes techniques for processing service requests. One example method includes receiving an electronic credential request from a client, retrieving an electronic credential that corresponds to the user identifier, generating server signature information, and transmitting the server signature information and the electronic credential to the client. The server signature information includes the electronic credential and a user public key of the client. The electronic credential and the user public are signed using a server private key. The server signature information is configured to be cryptographically verified by the client and configured to enable the client to generate a two-dimensional barcode based on the electronic credential. The electronic credential included in the two-dimensional barcode is configured to be verified by a credential verification device. The credential verification end device is configured to generate the electronic credential based on the user identifier.

    Method and apparatus for information exchange

    公开(公告)号:US12045802B2

    公开(公告)日:2024-07-23

    申请号:US17856666

    申请日:2022-07-01

    CPC classification number: G06Q20/3274 G06K17/0025 G06Q20/3276 G06Q20/4014

    Abstract: This specification techniques for sharing service and identity information between devices. One example method include acquiring, by a first device, a digital object identifier (DOI) of a second device, the DOI including identity information associated with the second device; generating, by the first device, a service DOI based on the identity information from the DOI of the second device, the service DOI including the identity information of the second device and service information; and displaying, by the first device, the service DOI on a display of the first device, wherein the displayed service DOI is configured to cause the second device to perform service processing when the displayed service DOI is acquired by the second device, and wherein the service processing is based at least in part on the identity information and the service information included in the service DOI.

    Service processing using a digital object identifier

    公开(公告)号:US10902233B2

    公开(公告)日:2021-01-26

    申请号:US16802725

    申请日:2020-02-27

    Abstract: A digital object identifier (DOI) display request is received. A service type of a service corresponding to the display request is determined. Basic user information of a first user and identity type information corresponding to the service type is determined based on the service type and stored calibration information, where the identity type information is pre-authenticated to ensure validity based on a validity period associated with the identity type information. A DOI of the first user is generated based on the basic user information and the identity type information. The DOI is displayed for a second user to perform service processing based on the basic user information and the identity type information in the DOI.

    Method, apparatus, and system for processing two-dimensional barcodes

    公开(公告)号:US11032070B2

    公开(公告)日:2021-06-08

    申请号:US17035359

    申请日:2020-09-28

    Abstract: This specification describes techniques for processing service requests. One example method includes receiving an electronic credential request from a client, retrieving an electronic credential that corresponds to the user identifier, generating server signature information, and transmitting the server signature information and the electronic credential to the client. The server signature information includes the electronic credential and a user public key of the client. The electronic credential and the user public key are signed using a server private key. The server signature information is configured to be cryptographically verified by the client and configured to enable the client to generate a two-dimensional barcode based on the electronic credential. The electronic credential included in the two-dimensional barcode is configured to be verified by a credential verification device. The credential verification end device is configured to generate the electronic credential based on the user identifier.

    METHOD, APPARATUS, AND SYSTEM FOR PROCESSING TWO-DIMENSIONAL BARCODES

    公开(公告)号:US20210028930A1

    公开(公告)日:2021-01-28

    申请号:US17035359

    申请日:2020-09-28

    Abstract: This specification describes techniques for processing service requests. One example method includes receiving an electronic credential request from a client, retrieving an electronic credential that corresponds to the user identifier, generating server signature information, and transmitting the server signature information and the electronic credential to the client. The server signature information includes the electronic credential and a user public key of the client. The electronic credential and the user public are signed using a server private key. The server signature information is configured to be cryptographically verified by the client and configured to enable the client to generate a two-dimensional barcode based on the electronic credential. The electronic credential included in the two-dimensional barcode is configured to be verified by a credential verification device. The credential verification end device is configured to generate the electronic credential based on the user identifier.

    Biometric feature database establishing method and apparatus

    公开(公告)号:US11544711B2

    公开(公告)日:2023-01-03

    申请号:US16719807

    申请日:2019-12-18

    Abstract: A usage frequency attribute is determined for each biometric feature in a biometric feature database. The usage frequency attribute indicates a matching success frequency of matching the biometric feature to a user having the biometric feature. The biometric features of the user are sorted in descending order of the usage frequency attribute. The sorting is based on a descending order of the usage frequency attributes for a given user. The biometric features in the biometric feature database are stored in descending order. The storing includes providing prioritized access to the biometric feature having a highest value of the usage frequency attribute so that the biometric feature is selected first in response to a request for the biometric feature of the user.

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