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Command: EVP_sm4_cbc | Section: 3 | Source: OpenBSD | File: EVP_sm4_cbc.3
EVP_SM4_CBC(3) FreeBSD Library Functions Manual EVP_SM4_CBC(3)
NAME
EVP_sm4_cbc, EVP_sm4_ecb, EVP_sm4_cfb, EVP_sm4_cfb128, EVP_sm4_ofb,
EVP_sm4_ctr - EVP SM4 cipher
SYNOPSIS
#include <openssl/evp.h>
const EVP_CIPHER *
EVP_sm4_cbc(void);
const EVP_CIPHER *
EVP_sm4_ecb(void);
const EVP_CIPHER *
EVP_sm4_cfb(void);
const EVP_CIPHER *
EVP_sm4_cfb128(void);
const EVP_CIPHER *
EVP_sm4_ofb(void);
const EVP_CIPHER *
EVP_sm4_ctr(void);
DESCRIPTION
These functions provide the SM4 blockcipher in the evp(3) framework.
All modes use a key length of 128 bits and act on blocks of 128 bits.
EVP_sm4_cfb() is an alias for EVP_sm4_cfb128(), implemented as a macro.
With an argument of "sm4" or "SM4", EVP_get_cipherbyname(3) returns
EVP_sm4_cbc().
RETURN VALUES
These functions return an EVP_CIPHER structure that provides the
implementation of the symmetric cipher.
SEE ALSO
evp(3), EVP_EncryptInit(3)
STANDARDS
Information security technology - SM4 block cipher algorithm, National
Standards of People's Republic of China, GB/T 32907-2016, August 29,
2016.
HISTORY
These functions appeared in OpenSSL 1.1.1 and have been available since
OpenBSD 6.5.
FreeBSD 14.1-RELEASE-p8 November 16, 2023 FreeBSD 14.1-RELEASE-p8