Abstract: A computer device receives a cross-chain request carrying a cross-chain protocol data packet and a first electronic signature that is initiated by a first service application. The cross-chain protocol data packet is encapsulated with cross-chain data, permission information, and a service application public key address. The first electronic signature is obtained by performing a cross-chain signature on the cross-chain protocol data packet based on a service application private key. When the cross-chain signature verification succeeds, the device replaces the service application public key address in the cross-chain protocol data packet with an account public key address to obtain a target cross-chain protocol data packet. The device performs an indirect cross-chain signature on the target cross-chain protocol data packet to obtain a second electronic signature, and generates an updated cross-chain request.

Abstract: A cross-chain collaborative governance system is configured to perform collaborative service and control governance on cross-chain interoperation between application subchains in a cross-chain alliance. The cross-chain collaborative governance system includes: a cross-chain access application layer configured to make a first application subchain and a second application subchain access the cross-chain collaborative governance system; a credible cross-chain collaborative layer configured to provide collaborative service for cross-chain interoperation between the first application subchain and the second application subchain; and a credible cross-chain governance layer configured to perform control governance on the cross-chain interoperation between the first application subchain and the second application subchain.

Abstract: Embodiments of the present invention relate to a method, an apparatus, and a system for processing order information. The method includes receiving, by means of a short-range communication component, order information sent by a first terminal, the order information including an account identifier of a paid object account and a payment amount; acquiring an account identifier of a first account prestored at the second terminal and bound thereto as an account identifier of a payout account and add the account identifier of the payout account to the order information; performing encryption processing, by using a prestored first key, on the order information to which the account identifier of the payout account is added; and sending, by means of the short-range communication component, the encrypted order information to the first terminal. By the embodiments of the present invention, efficiency of order information can be improved.

Abstract: A method, an apparatus, and a system for controlling an intelligent device are provided. The device transmits a control request including a first intelligent device identifier corresponding to a first intelligent device to be controlled. In response to transmitting the control request, the device receives a first verification character string that corresponds to the control request. The first verification character string is transmitted to a first wearable device locally establishing a data connection with the first wearable device. First signed information is received from the first wearable device. The first signed information is a result of performing a signature on first to-be-signed information and includes the first verification character string. The first signed information and operation information for controlling the first intelligent device are transmitted.

Abstract: An identity authentication method includes sending, by a third-party application client, an operation request to a third-party application server, in response to receiving a first operation indication for requesting to perform a target operation, the operation request requesting the third-party application server to perform the target operation, and receiving, by the third-party application client, to-be-signed information from an authentication server via the third-party application server, in response to the operation request being sent, the to-be-signed information comprising a challenge random number.

Abstract: A method, an apparatus, and a system for controlling an intelligent device are provided. The device transmits a control request including a first intelligent device identifier corresponding to a first intelligent device to be controlled. In response to transmitting the control request, the device receives a first verification character string that corresponds to the control request. The first verification character string is transmitted to a first wearable device locally establishing a data connection with the first wearable device. First signed information is received from the first wearable device. The first signed information is a result of performing a signature on first to-be-signed information and includes the first verification character string. The first signed information and operation information for controlling the first intelligent device are transmitted.

Abstract: The present disclosure relates to the field of terminal technologies, and discloses a service processing method and an electronic device. In the present disclosure, a plaintext message used for performing a service operation is provided in a second electronic device. In this case, when needing to perform service processing, a first electronic device may obtain, by means of encryption transmission between the first electronic device and the second electronic device, the plaintext message provided by the first electronic device, so as to perform service processing based on the plaintext message. No key exchange is involved in the interaction, and a private key of an electronic device is not exported from the device. Therefore, in this process, a device application scenario is significantly extended while information security is ensured.

Abstract: A method, an apparatus, and a system for controlling an intelligent device are provided. The device transmits a control request including a first intelligent device identifier corresponding to a first intelligent device to be controlled. In response to transmitting the control request, the device receives a first verification character string that corresponds to the control request. The first verification character string is transmitted to a first wearable device locally establishing a data connection with the first wearable device. First signed information is received from the first wearable device. The first signed information is a result of performing a signature on first to-be-signed information and includes the first verification character string. The first signed information and operation information for controlling the first intelligent device are transmitted.

Abstract: An identity authentication method includes sending, by a third-party application client, an operation request to a third-party application server, in response to receiving a first operation indication for requesting to perform a target operation, the operation request requesting the third-party application server to perform the target operation, and receiving, by the third-party application client, to-be-signed information from an authentication server via the third-party application server, in response to the operation request being sent, the to-be-signed information comprising a challenge random number.

Abstract: A method, an apparatus, and a system for controlling an intelligent device are provided. The device transmits a control request including a first intelligent device identifier corresponding to a first intelligent device to be controlled. In response to transmitting the control request, the device receives a first verification character string that corresponds to the control request. The first verification character string is transmitted to a first wearable device locally establishing a data connection with the first wearable device. First signed information is received from the first wearable device. The first signed information is a result of performing a signature on first to-be-signed information and includes the first verification character string. The first signed information and operation information for controlling the first intelligent device are transmitted.

Abstract: The present disclosure relates to the field of terminal technologies, and discloses a service processing method and an electronic device. In the present disclosure, a plaintext message used for performing a service operation is provided in a second electronic device. In this case, when needing to perform service processing, a first electronic device may obtain, by means of encryption transmission between the first electronic device and the second electronic device, the plaintext message provided by the first electronic device, so as to perform service processing based on the plaintext message. No key exchange is involved in the interaction, and a private key of an electronic device is not exported from the device. Therefore, in this process, a device application scenario is significantly extended while information security is ensured.

Abstract: Embodiments of the present invention relate to the field of computer technologies, and in particular, to a method, an apparatus, and a system for processing order information. The method includes receiving, by means of a short-range communication component, order information sent by a first terminal, the order information including an account identifier of a paid object account and a payment amount; acquiring an account identifier of a first account prestored at the second terminal and bound thereto as an account identifier of a payout account and add the account identifier of the payout account to the order information; performing encryption processing, by using a prestored first key, on the order information to which the account identifier of the payout account is added; and sending, by means of the short-range communication component, the encrypted order information to the first terminal. By the embodiments of the present invention, efficiency of order information can be improved.