Description: An encryption system of their own design. Block cipher used in this system of thought, of the 128-bit encryption and decryption expressly groups. Specific idea is: to express division 128bits divided into 4 × 4 × 4 units of 2bits control key and then use the transform, round key is equivalent to transform the way the encoding, may be regarded as the instruction stream transformation. Encryption and decryption process is the process of instruction stream and data stream mixed.
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