An encryption method based on AES and application

Abstract

The application discloses an encryption method based on AES and application, the encryption method is that data is sequentially subjected to byte substitution, line shift, column confusion, round key addition and key expansion; the round key addition is that plaintext data is divided into 128bit group data, each group is subjected to exclusive OR operation with the front 128bit and the rear 128bit of 256bit key respectively. The application can satisfy the requirement that modern communication field hopes to reach the encryption strength of AES 256, and hopes to be different from the existing encryption algorithm, and the requirement that the encryption algorithm is not intercommunicated. The application has all advantages of the original AES 256, and the encryption strength is better.

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