Protection method for side channel attack and fault attack
A technology of side channel attack and fault attack, applied in secure communication device, encryption device with shift register/memory, digital transmission system, etc. To achieve the effect of easy implementation, reduction of additional resources, and strong security
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[0029] The present invention will be further described below in conjunction with the accompanying drawings.
[0030] The present invention provides a protection method against side channel attacks and fault attacks, which adopts pipeline technology. The method of the invention is as follows: the operation of the block cipher algorithm is divided into several stages of pipelines, and two stages of pipelines are randomly selected.
[0031] Since the pipelines of different stages at the same time are involved in the operation of different data, the side information generated when the random number participates in the operation is used as noise to mask the side information generated by the real data participating in the operation, so that it can resist side channel attacks.
[0032] By comparing whether the operation results of the two real data are consistent at the end of the operation, if they are consistent, it is considered that there is no fault attack, so that the fault att...
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