Instrument equipment, data safety access method, device and system
A data security and access device technology, applied in the field of data processing, can solve problems such as low efficiency of security authentication, inability to update pre-stored fee data, etc., and achieve the effect of improving efficiency and facilitating use
Inactive Publication Date: 2008-03-12
BEIJING WATCH DATA SYST
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Problems solved by technology
[0004] Although the existing technology can ensure the security and integrity of the data transmitted between the background management system and the instrumentation equipment, it requires two authentication processes, resulting in relatively low security authentication efficiency
[0005] In addition, because the existing technology needs to use smart cards as the transmission medium between the background management system and the instrumentation equipment, it will bring a lot of inconvenience to users. For example, once the smart card is lost or damaged, the pre-stored cost data in the instrumentation equipment cannot be updated. , so that when the pre-stored cost data in the meter equipment cannot pay for the water, electricity or gas used by the user, the meter equipment will be restricted from use
Method used
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Embodiment Construction
[0046] The embodiment of the present invention provides a method for secure data access, which ensures the security of prepaid data access through direct authentication between the background management system and the meter equipment with communication functions.
[0047]In the process of implementing the embodiment of the present invention, the background management system detects that the application data of the instrument equipment needs to be updated, and based on the communication protocol, transmits the encrypted application data and the control signaling that needs to update the application data of the instrument equipment to the Meter device: After decrypting the application data, the meter device updates the application data to be updated according to the decrypted application data. The meter device can also return the integrity verification code and random number corresponding to the updated data to the background management system, and the background management syste...
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The utility model discloses a safety data access informing method, instrumental equipment, safety data access method, apparatus and system. The utility model detects the to-be-updated field data of the instrumental equipment via the off-stage supervising system, so that based on the communication protocol, the encrypted field data and the control signaling for updating the field data thereof shall be sent to the instrumental equipment. Based on the communication protocol, the instrumental equipment obtains the field data and the control signaling from the off-stage supervising system. Thus, the field data is decrypted. According to the control signaling and the decrypted field data, the field data in the instrumental equipment can be updated. Therefore, the utility model can improve the efficiency of safety authentication and realize the remote and safe revising of the field data which are in the on-site operated instrumental equipment, while the data transmission medium is not needed, so as to facilitate the use.
Description
technical field [0001] The invention relates to the field of data processing, in particular to a data security access technology. Background technique [0002] In the field of public utilities, the use of prepaid fees (including water charges, electricity charges, gas charges, etc.) has been widely accepted and adopted by public utility companies. This method of charging fees in a prepaid way requires the user to store a certain amount of paid application data in advance, and the background management system can obtain the user's usage information, and can deduct the corresponding amount from the user's prepaid application data according to the user's usage information. Amount, when the user's prepaid application data is insufficient, the background management system will control the user's usage rights. [0003] The prior art related to the present invention provides a method for accessing prepaid application data. In this method, a smart card is used as a transmission med...
Claims
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Login to View More IPC IPC(8): H04L9/28H04L29/06H04L9/08
Inventor 王国荣王军李延
Owner BEIJING WATCH DATA SYST