# SM3 SM3 is a hash function. To use SM3 in libsm: 1. Make sure that your data is `&[u8]`. 2. Create a `SM3Hash`. 3. Get the digest. Sample: ``` use libsm::sm3::Sm3Hash; let string = String::from("sample"); let mut hash = Sm3Hash::new(string.as_bytes()); let digest: [u8;32] = hash.get_hash(); ```