The signature process of SM2 elliptic curve digital signature algorithm is described as follows.

The signature validation process of SM2 elliptic curve digital signature algorithm is described as follows.

According to the signature process of SM2 elliptic curve digital signature algorithm in section 2, the signer chooses a random number k, then computes kG = ([x.

1] is used in the signature process of the SM2 elliptic curve digital signature algorithm, the participants can complete the sharing of d' = [(1 + d).

Since the signer chooses a random number k in the signature process of SM2 elliptic curve digital signature algorithm, the participants share the random secret number k by the Joint-Shamir-RSS algorithm in the threshold signature process.

The signature validation process of SM2 elliptic curve threshold signature scheme is the same as that of SM2 elliptic curve digital signature algorithm in section 2.

And the proposed SM2 elliptic curve threshold signature scheme is compared with the threshold signature scheme based on Elliptic Curve Digital Signature Algorithm (ECDSA) in efficiency.