A method of using an embedded system with data splitting and encryption function
A technology of embedded system and encryption function, applied in the fields of digital data protection, electrical digital data processing, instruments, etc., can solve the problem of easy cracking of keys, and achieve the protection function, safe and effective separation storage, high protection function. Effect
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Embodiment 1
[0046] Such as figure 1 As shown, the present invention provides a method for using an embedded system with a data splitting and encryption function, and the method for using an embedded system with a data splitting and encryption function is applied to an embedded system 1, and the embedded system 1 Include at least:
[0047] A controller 11 and an off-chip non-volatile memory 12 , the controller 11 includes a control module 111 , an on-chip volatile memory 112 and an on-chip non-volatile memory 113 .
[0048]The control module 111 is connected to the on-chip volatile memory 112, the on-chip non-volatile memory 113 and the off-chip non-volatile memory 12, and is used to disassemble the data in the on-chip volatile memory 112 Sub-encryption into extracted information data and subject information data are stored in the on-chip non-volatile memory 113 and the off-chip non-volatile memory 12, or the on-chip non-volatile memory 113 and the off-chip non-volatile memory The extrac...
Embodiment 2
[0056] Such as Figure 1 ~ Figure 3 As shown, the present invention provides a kind of use method of the embedded system with data splitting encryption function, comprises following process:
[0057] Such as figure 1 As shown, when writing data, based on the control module 111, the data running in the on-chip volatile memory 112 is split and encrypted into extraction information data and main body information data in units of data blocks based on the control module 111, and are stored in the on-chip non-volatile memory respectively. Lost memory 113 and off-chip non-volatile memory 12.
[0058] Specifically, the extraction information data is information that is extracted when the extraction information data is obtained after the data to be written into the off-chip non-volatile memory 12 is subjected to full-text association transformation based on data blocks. , the corresponding point, length and transformation parameters are the data of the key parameters.
[0059] Speci...
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