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See Chinese contents: GM/T 0003.4-2012 GM/T 0003.4-2012: Public key cryptographic algorithm SM2 based on elliptic curves - Part 4: Public key encryption algorithm
This Part of GM/T 0003 specifies the public key encryption algorithm for the public key cryptographic algorithm SM2 based on elliptic curves, and gives an example of message encryption and decryption as well as the corresponding flow.
