Sha 1 is a hash algorithm, which means that data is calculated by sha 1 algorithm, and the result is sha 1 value (check value), which can be used for digital signature and signature verification.

Sm3 is a national secret algorithm, which was issued by the National Cryptography Administration on 20 10. It is also a hash algorithm. Its function is similar to sha 1, but its implementation is different. It is more difficult to crack than sha 1, and can reach the level of sha256 (sha256 is the encryption method of Bitcoin). It can also be used for digital signature and signature verification.