Patent ID: 11887111
Assignee: TENDYRON CORPORATION
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An offline electronic currency payment method, comprising:
controlling, by a first security control module, a first communication module to establish a wireless connection with a first peer device;
acquiring, by the first security control module, wallet information from a first file storage module, and controlling, by the first security control module, the first communication module to transmit the wallet information to the first peer device, wherein the wallet information comprises offline account information, an available balance and an electronic currency; the electronic currency comprises at least the following fields: a currency denomination, an owner identification, and an issuer signature; and the first security control module does not delete the electronic currency stored in the first file storage module after transmitting the wallet information to the first peer device;
receiving, by the first security control module through the first communication module, collection information transmitted by the first peer device, wherein the collection information is generated and transmitted after passing a verification of the first peer device; passing the verification of the first peer device comprises: the first peer device verifying that the offline account information is not included in an offline transaction blacklist stored in the first peer device, verifying that the electronic currency is legal, and verifying that the available balance is smaller than or equal to a total denomination of the electronic currency, wherein the collection information at least comprises first peer offline account information;
verifying, by the first security control module, whether the first peer offline account information is included in an offline transaction blacklist stored in the first file storage module; in response to verifying that the first peer offline account information is not included in the offline transaction blacklist stored in the first file storage module, acquiring, by the first security control module, first transaction information; digitally signing, by the first security control module, the first transaction information; and transmitting, by the first security control module, first transaction data to the first peer device through the first communication module, wherein the first transaction information at least comprises the offline account information, the first peer offline account information, first transaction time and a first transaction amount, and the first transaction data at least comprises the first transaction information and first signature information obtained by digitally signing the first transaction information; and
controlling, by the first security control module, the first file storage module to store a first transaction record comprising the first transaction data, and controlling, by the first security control module, the first file storage module to modify a stored current available balance into a balance obtained by deducting the first transaction amount from the available balance,
wherein controlling, by the first security control module, the first communication module to establish the wireless connection with the first peer device comprises:
controlling, by the first security control module, the communication module to establish a Near Field Communication (NFC) connection with the first peer device;
controlling, by the first security control module, the communication module to transmit Bluetooth pairing information via the NFC connection; and
controlling, by the first security control module, the communication module to establish a Bluetooth connection with the first peer device by using the Bluetooth pairing information.