Data protection system and method

1. A data protection system, comprising:

a cloud management platform comprising a database stored with a plurality of keys; and

a data storage device, configured with a unique code, and comprises a data storage unit, a microprocessor, and a network communication component, wherein the microprocessor is connected to the data storage unit, and communicates with the cloud management platform via the network communication component, the data storage unit comprises a controller and a plurality of flash memories connected to the controller, the plurality of flash memories store a plurality of encrypted data;

wherein the microprocessor sends a key extraction request including the unique code to the cloud management platform via the network communication component; the cloud management platform selects one of the keys matching to the unique code in the key extraction request from the database, and transmits the selected key to the data storage device; thereby, the controller of the data storage device uses the key from the cloud management platform to decrypt the encrypted data;

wherein the database of the cloud management platform registers a plurality of IP addresses; when the network communication component of the data storage device is connected to a network by a physical IP address, the microprocessor of the data storage device embeds the physical IP address into the key extraction request, and sends the key extraction request including the unique code and the physical IP address to the cloud management platform; the cloud management platform determines whether the physical IP address in the key extraction request is registered in the database after receiving the key extraction request so as to decide whether to transmit the key matching to the unique code of the key extraction request to the data storage device;

and

wherein if the cloud management platform determines that the physical IP address of the key extraction request is not registered in the database after receiving the key extraction request, the cloud management platform will send a destroying physical instruction to the data storage device, and then the microprocessor of the data storage device enables a high voltage circuit according to the destroying physical instruction to output a high voltage to the flash memories to destroy the flash memories.

2. The data protection system according to claim 1 , wherein the database of the cloud management platform registers a plurality of IP addresses, and stores a geographic position corresponding to each of the plurality of IP addresses;

when the network communication component of the data storage device is connected to a network by a physical IP address, the microprocessor of the data storage device embeds the physical IP address into the key extraction request, and sends the key extraction request including the unique code and the physical IP address to the cloud management platform; if the cloud management platform determines that the physical IP address of the key extraction request has registered in the database after receiving the key extraction request, the cloud management platform will inquire the geographic position corresponding to the physical IP address of the key extraction request.

3. The data protection system according to claim 1 , wherein the unique code is a MAC address of the network communication component, a chip serial number of the data storage device, or a product serial number of the data storage device.

4. The data protection system according to claim 1 , wherein the network communication component is configured within the microprocessor.

5. A data protection method adapted for a data protection system comprising a cloud management platform and a data storage device, wherein the cloud management platform comprises a database stored with a plurality of keys, the data storage device is configured with a unique code, and comprises a data storage unit, a microprocessor, and a network communication component, the microprocessor communicates with the cloud management platform via the network communication component, the data storage unit comprises a controller and a plurality of flash memories, the plurality of flash memories store a plurality of encrypted data, the data protection method comprising:

sending a key extraction request including the unique code to the cloud management platform by the microprocessor;

selecting one of the keys matching to the unique code of the key extraction request from the database by the cloud management platform;

transmitting the selected key to the data storage device by the cloud management platform; and

decrypting the encrypted data via the key received from the cloud management platform by the controller of the data storage device;

wherein the database of the cloud management platform registers a plurality of IP addresses; when the network communication component of the data storage device is connected to a network by a physical IP address, the data protection method further comprising:

embedding the physical IP address into the key extraction request by the microprocessor;

sending the key extraction request including the unique code and the physical IP address to the cloud management platform by the microprocessor; and

determining whether the physical IP address in the key extraction request is registered in the database by the cloud management platform after receiving the key extraction request; if the physical IP address in the key extraction request has registered in the database, allowing the cloud management platform to transmit the key matching to the unique code to the data storage device; if the physical IP address in the key extraction request is not registered in the database, inhibiting the cloud management platform to transmit the key matching to the unique code to the data storage device;

sending a destroying physical instruction to the data storage device when the cloud management platform determines that the physical IP address of the key extraction request received from the data storage device is not registered in the database; and

enabling a high voltage circuit by the microprocessor according to the destroying physical instruction to output a high voltage to the flash memories to destroy the flash memories.

6. The data protection method according to claim 5 , wherein the database of the cloud management platform registers a plurality of IP addresses, and stores a geographic position corresponding to each of the plurality IP addresses;

when the network communication component of the data storage device is connected to a network by a physical IP address, the data protection method further comprising:

embedding the physical IP address into the key extraction request by the microprocessor;

sending the key extraction request including the unique code and the physical IP address to the cloud management platform by the microprocessor; and

inquiring the geographic position corresponding to the physical IP address in the key extraction request after the cloud management platform determines that the physical IP address of the key extraction request received from the data storage device has registered in the database.