China Unionpay Co., Ltd.

Other

Sen Yang

Wei Zhang

Junhao Zhang

Xiaoming Zhang

Haiyang Zhang

Xu Wang

Zhijun Lu

Jun Zhu

Fei Zhang

Jinzhi Hua

Yanming Yang

Kun Zeng

Zhenfen Yu

Jianming Kang

Liwei Xu

Longxian Zhu

Jinrong Wu

Jiude Zhu

The application provides a data encryption and decryption method, device, storage medium, and encrypted file, and relates to the technical field of data processing. The method for data encryption includes: obtaining a first key, and performing an obfuscation operation on the first key and data to be encrypted to obtain obfuscation operation result data; obtaining a second key, and obtaining a first signature of the obfuscation operation result data according to the second key; obtaining a third key, and encrypting the first key, the data to be encrypted and the first signature using the third key to obtain a target ciphertext; obtaining a fourth key, and obtaining a second signature of the target ciphertext according to the fourth key; generating an encrypted file including the target ciphertext and the second signature. With the technical solutions of the application, security of data protection can be improved.

Data encryption and decryption method, device, storage medium and encrypted file

The invention provides an entrusted-authorization system and an entrusted-authorization method. The entrusted-authorization system comprises an accounting system, a switch module and an entrusted-authorization module, wherein the entrusted-authorization module stores entrusted-authorization parameters determined by the accounting system, the switch module is connected with the accounting system and the entrusted-authorization module for transmitting transaction request messages from the client terminal to the entrusted-authorization module for processing in case that the accounting system is unavailable, wherein the entrusted-authorization module verifies the transaction request messages according to the entrusted-authorization parameters; otherwise, the messages are sent to the accounting system for processing. The transaction request messages comprise financial account information, financial institution information, transaction-initiation institution information and transaction amount. With the entrusted-authorization system and entrusted-authorization method of the invention, a normal processing of transaction request can be ensured when the accounting system is unavailable.

Stand-in authorization system and stand-in authorization method

The present disclosure provides a method and a device for transaction clearing. The method includes receiving first clearing requests transmitted by a quantity N of terminals, where N>1; according to the first clearing requests, acquiring transaction data of the quantity N of terminals from a database; initializing a cache queue, and loading the transaction data into the cache queue; reading the transaction data in the cache queue, and performing a clearing process on the transaction data; and writing a clearing result into the database and feeding back the terminals with an execution result of the first clearing requests.

Transaction settlement method and apparatus

Disclosed are a method and device for timeout monitoring, comprising: determining key information of a request message, the key information including a sending time of the request message; storing the key information to a first level cache; scanning the first level cache according to a set frequency, if the first level cache includes a first request message, storing the key information of the first request message into a second level cache, the first request message being a request message for which a reply message is not received; scanning the second level cache, and determining by a message log whether a reply message is received for a second request message in the second level cache, if not, the second request message times out, the second request message is a request message in which the difference value between a sending time and a current time is greater than a time-out threshold.

Method and device for timeout monitoring

The present invention relates to a data processing system for providing business continuity protection, comprising: a business center comprising a first data processing unit, a first pre-communication unit, and at least a first post-communication unit; a disaster recovery center comprising a second data processing unit, a second pre-communication unit, and at least a second post-communication unit; wherein the first pre-communication unit and the second pre-communication unit are communicatively coupled to the first post-communication unit respectively when the business center operates normally; the first pre-communication unit and the second pre-communication unit are communicatively coupled to the second post-communication unit respectively when the disaster recovery center operates in place of the business center. The data processing system can reliably switch between the business center and the disaster recovery center, thereby providing a complete protection for the business continuity.

Data processing system providing service continuity protection

This invention relates to a diagnostic apparatus and particularly to an apparatus for the diagnosis of malignant tumor and the method of using the apparatus for diagnosis. The apparatus employs an ultraviolet light source with an emitting waveband of 3000A-4000A. Light from the light source is transmitted through a bundle of quartz optic fibers to the surface of the tumor, whether benign or malignant, to stimulate it, which then generates a specific intrinsic fluorescence spectrum. The intrinsic fluorescence spectrum reflected from the surface of the tumor is transmitted by a second bundles of glass fibers placed near it to a color resolution means, then processed by a scanning means and a circuit means, and displayed recorded by a display recording means. The display may be a graphic presentation of the intrinsic fluorescence spectrum of the tumor that is tested. If the graphic presentation displayed includes a single peak within the range of the blue color band, it indicates that the tumor being tested is benign. If however, a second peak appears within the range of the red color band of the graphic presentation it is a characteristic peak of malignancy, indicating the existence of a malignant tumor. The presence of the red color can be established by eye rather than a complex color resolution system.

Diagnostic apparatus for intrinsic fluorescence of malignant tumor

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Shanghai, China

Sen Yang