Encryption protection device aiming at electromagnetic sensing attack and use method
A protection device and electromagnetic technology, applied in the field of data security, can solve the problems of poor shielding effect of shielding shell and/or encapsulation shell, increase the acquisition of encrypted data, etc., and achieve the effect of increasing difficulty and protecting encrypted data.
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Embodiment 1
[0049] In view of the above shortcomings, the embodiment of the present invention proposes an encryption protection device against electromagnetic perception attacks, such as figure 1 and figure 2 shown, including:
[0050] The true random number generator 1 is used to generate true random numbers; specifically, the natural random quantity collected by the true random number generator 1 is thermal noise, and the thermal noise is provided by the amplifier method, the oscillator sampling method and the chaotic method, and then according to the This thermal noise produces the true random numbers required by the system.
[0051] The first I / O port of the processor 2 is electrically connected with the true random number generator 1 to obtain the true random number and generate a configuration signal; and the first I / O port of the processor 2 is a digital port. This is because the generated true random number is a digital quantity, and the processor 2 generates a configuration si...
Embodiment 2
[0068] The embodiment of the present invention is further refined on the basis of the first embodiment, and it can be known that the above-mentioned encryption protection device against electromagnetic perception attacks further includes an intensity adjuster 5;
[0069] The input end of the intensity regulator 5 is electrically connected to the output end of the electromagnetic signal generator 4 for monitoring and adjusting the intensity of the electromagnetic signal. In a preferred embodiment, a spectrum analyzer can be used to measure the electromagnetic signal generated by the electromagnetic signal generator 4, and the electromagnetic signal can be adjusted to be consistent with the electromagnetic signal generated by the encryption device. Afterwards, the two are brought together by overlay fusion.
[0070] What needs to be added here is that a shielding casing is used outside the encryption protection device, so as to further reduce the possibility of electromagnetic p...
Embodiment 3
[0079] On the basis of Embodiment 1 and Embodiment 2, an embodiment of the present invention also proposes a method for using an encryption protection device against electromagnetic perception attacks, which is applied to the above data protection device, such as image 3 , Figure 4 and Figure 5 shown, including:
[0080] S10: The processor reads the configuration parameter and starts the true random number generator; the configuration parameter includes the update period of the frequency pulse, and the update period of the frequency pulse is used to set the time for updating the frequency of the pulse. What needs to be added here is that before the processor reads the configuration parameters, the above configuration parameters also need to be set, and the configuration parameters are set, including:
[0081] S11: Determine whether the setting command is received within the response time; the response time is usually set to 1 second.
[0082] S12: If no, read the configu...
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