SM4 Algorithm Functions

Functions described in this section can be used for various operational modes of SM4 cipher systems.

• mbx_sm4_set_key_mb16
  Initializes multi buffer key schedule to provide all necessary key material for both encryption and decryption operations.
• mbx_sm4_encrypt/decrypt_ecb_mb16
  Encryption/decryption of the input data streams by using the SM4 algorithm in the ECB mode.
• mbx_sm4_encrypt/decrypt_cbc_mb16
  Encryption/decryption of the input data streams by using the SM4 algorithm in the CBC mode.
• mbx_sm4_encrypt/decrypt_ctr128_mb16
  Encryption/decryption of the input data streams by using the SM4 algorithm in the CTR mode with 128-bit counter.
• mbx_sm4_encrypt/decrypt_ofb_mb16
  Encryption/decryption of the input data streams by using the SM4 algorithm in the OFB mode.
• mbx_sm4_encrypt/decrypt_cfb128_mb16
  Encryption/decryption of the input data streams by using the SM4 algorithm in the CFB mode with 128-bit CFB block size.