EVP_SM3(3) | Library Functions Manual | EVP_SM3(3)

# NAME

`EVP_sm3` — SM3 hash function for EVP

# SYNOPSIS

library “libcrypto”
`#include <openssl/evp.h>`

const EVP_MD *
`EVP_sm3`(void);

# DESCRIPTION

SM3 is a cryptographic hash function with a 256-bit output. It is part of the Chinese “Commercial Cryptography” suite of algorithms which is required for certain commercial applications in China.

# RETURN VALUES

`EVP_sm3`() returns a pointer to a static EVP_MD object implementing the SM3 hash function.

# SEE ALSO

evp(3), EVP_DigestInit(3)

# STANDARDS

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

# HISTORY

`EVP_sm3`() first appeared in OpenSSL 1.1.1 and has been available since OpenBSD 6.5.

June 8, 2025 | Debian