Data processing method, processor, electronic device, storage medium and program product

Abstract

The invention provides a data processing method, a processor, an electronic device, a storage medium and a program product. The method comprises that: in response to a processing request for target data, each processing unit processes the target data according to a preset sequence to obtain processing result data; the input data is processed by adopting a first confusion matrix and a first presetwhite box lookup table in a first processing unit to obtain first output data; if the first processing unit is the first processing unit, the input data is target data; the first output data is processed by adopting a second confusion matrix and a second preset white box lookup table in a second processing unit to obtain second output data; if the second processing unit is the last processing unit, the second output data is processing result data; and different processing requests use different first obfuscation matrices. According to the invention, the security of the first preset white box lookup table and the second preset white box lookup table can be ensured, and the side channel attack can be effectively prevented.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a data processing method, a processor, an electronic device, a storage medium and a program product. Background technique [0002] In the field of data processing technology, in order to ensure the security of data, it is usually necessary to encrypt the data through an encryptor and decrypt the data through a decryptor, and the attack on the encryptor or decryptor can obtain the encryptor or decryptor The key used makes the key security problem. Among them, the side-channel attack is an attack on the encryptor or decryptor. The side-channel attack does not need to obtain the code logic of the encryptor. The attacker can obtain the input of each encryption unit in the encryptor through a large number of encryption requests. data and the corresponding output data, so that the white-box lookup table used by the encryption unit can be determined according to the cor...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that both the current encryptor and decryptor have the security problem of the white box lookup table, which cannot effectively prevent side channel attacks

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