Digital signature data storage device, digital signature system and signature method
A digital signature and data storage technology, applied in the direction of digital data protection, can solve the problems of reducing the security of data transmission, encrypted data cannot be decrypted, and increasing the chance of private key being stolen
Pending Publication Date: 2022-08-05
INNODISK CORP
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Problems solved by technology
If the private key stored in the data storage device is accidentally deleted or lost, subsequent encrypted data will not be decrypted
Therefore, in order to prevent the private key from being accidentally deleted or lost, the private key can also be backed up in multiple storage devices. However, this approach will increase the chance of the private key being stolen, thereby reducing the security of data transmission
Method used
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[0025] see figure 1 , is a schematic diagram of the architecture of the digital signature system of the present invention. like figure 1As shown, the digital signature system 100 includes an electronic device 10 and a data storage device 20 . The electronic device 10 of the present invention is a device that can perform specific operations, such as a computer host, a communication device or an IoT device. The electronic device 10 includes a processor 11 or an application specific integrated circuit (ASIC) 13 . The electronic device 10 generates a specific data 12 by performing a specific operation on the processor 11 in a software manner, or generates specific data 12 by performing a specific operation on a special application chip 13 in a hardware manner. The data storage device 20 is a device capable of digital signature, which can perform a digital signature operation on the specific data 12 generated by the electronic device 10 or the specific data 12 after a hash opera...
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The invention discloses a digital signature data storage device, a digital signature system and a digital signature method. The digital signature data storage device comprises an electronic device and a data storage device, the electronic device executes a specific operation to generate specific data and calculates the specific data by using a hash algorithm to generate hash data; the data storage device comprises a controller, a plurality of flash memories and a data transmission interface, the electronic device transmits the hash data to the data storage device through the data transmission interface; the controller comprises firmware; the firmware reads a non-replicable function, generates a private key according to the non-replicable function, and encrypts the hash data by using the private key to generate a digital signature, and the data storage device transmits the digital signature to the electronic device through the data transmission interface.
Description
technical field [0001] The present invention relates to a data storage device capable of digitally signing data generated by an electronic device performing a specific operation. Background technique [0002] With the advancement of technology and the popularization of the Internet, digital information is flooded in our lives. Since digital information is easy to be spread and copied, in order to improve the security and reliability of digital information, encryption protection is generally performed during data transmission. [0003] There are two types of encryption algorithms: symmetric encryption algorithm and asymmetric encryption algorithm. Among them, the symmetric encryption algorithm uses the same key for data encryption and decryption. When transmitting encrypted data, the key must also be transmitted, so that the recipient of the data can decrypt the encrypted data with the received key. Of course, in the process of transmitting the key, the key may also be int...
Claims
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IPC IPC(8): G06F21/64G06F21/60
CPCG06F21/64G06F21/602
Inventor 陈明胜郭进忠
Owner INNODISK CORP