Abstract: A processing method includes acquiring, by a first service node of a first blockchain, a cross-chain transfer request, the cross-chain transfer request including a virtual resource value, a first resource transfer-out address on the first blockchain, and a first resource transfer-in address on a second blockchain. The cross-chain transfer request is used by a second service node of the second blockchain to lock a first virtual resource of the virtual resource value in the second blockchain. The method further includes performing resource transfer-out processing on a second virtual resource associated with the virtual resource value in the first resource transfer-out address in response to a determination that the second service node locked the first virtual resource successfully. The method further includes transferring the first virtual resource to the first resource transfer-in address in the second blockchain in response to a determination that the second virtual resource was transferred out.

Abstract: A data processing method performed by a first device includes: generating, in response to first service data satisfying a data uploading condition, a first bit array corresponding to the first service data; encrypting the first bit array through a data key to obtain a ciphertext bit array, the data key being generated by a second device in a data intersection application run in a trusted execution environment of the second device; and transmitting the ciphertext bit array to a blockchain node for forwarding to a second device, for the second device to decrypt, in the data intersection application through the data key, the ciphertext bit array to obtain the first bit array.

Abstract: A login method and system based on a cloud application instance, and a related device are provided. The method includes the following steps: A cloud application instance sends a login request for an application service node to a terminal device, such that after obtaining a login password input by a user, the terminal device sends a verification request carrying the login password and a device identity of the cloud application instance to an account management node. The account management node may verify the login password, and send verification success information to the cloud application instance. The cloud application instance logs in to the application service node based on the verification success information using.

Abstract: A payment method and system based on a cloud application instance, and a related device are provided. The method includes the following steps: The cloud application instance sends an order and a device identity to a payment management node. The payment management node records a correspondence between the order and the device identity. The cloud application instance sends an order payment request to a terminal device. The terminal device sends, to the payment management node based on the order payment request, an order obtaining request carrying the device identity. The payment management node obtains the order from the correspondence based on the device identity carried in the order obtaining request, and sends the order to the terminal device. The terminal device receives and processes the order.