The result of SM2 asymmetric encryption consists of three parts: C1, C2, and C3. Where C1 is an elliptic curve point calculated based on the generated random number, representing the randomly generated temporary public key; C2 is the ciphertext data, and C3 is the digest value of SM3. In the original national standard, the result is stored in the order of C1C2C3, while the new standard stores it in the order of C1C3C2.