EVP_sm3 - SM3 for EVP

       GB/T 32905-2016 and GM/T 0004-2012.

       Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.  Copyright  2017  Ribose  Inc.  All
       Rights Reserved.

       Licensed  under  the  Apache License 2.0 (the "License").  You may not use this file except in compliance
       with the License.  You can obtain  a  copy  in  the  file  LICENSE  in  the  source  distribution  or  at
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                                      EVP_SM3(3SSL)

       SM3 is a cryptographic hash function with a 256-bit output, defined in GB/T 32905-2016.

       EVP_sm3()
           The SM3 hash function.

       EVP_sm3 - SM3 for EVP

       Developers  should  be  aware  of the negative performance implications of calling this function multiple
       times and should consider  using  EVP_MD_fetch(3)  with  EVP_MD-SM3(7)  instead.   See  "Performance"  in
       crypto(7) for further information.

       These  functions  return  a  EVP_MD structure that contains the implementation of the message digest. See
       EVP_MD_meth_new(3) for details of the EVP_MD structure.

evp(7), EVP_DigestInit(3)

        #include <openssl/evp.h>

        const EVP_MD *EVP_sm3(void);