EVP_sm3.3ossl - Man Page

SM3 for EVP


 #include <openssl/evp.h>

 const EVP_MD *EVP_sm3(void);


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


The SM3 hash function.


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.

Return Values

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.

Conforming to

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

See Also

evp(7), EVP_DigestInit(3)

Referenced By


2024-02-09 3.2.1 OpenSSL