SM4 Decrypt

SM4 is a 128-bit block cipher, currently established as a national standard (GB/T 32907-2016) of China. SM4 Decrypt lives in the Cryptography category of the fx menu.

Parameters

Parameter	Type	Required	Default	Description
Input	string	yes	—	Value to transform. Previous step output or a literal.
Key	string	no	—	Argument value for this operation.
IV	string	no	—	Argument value for this operation.
Mode	string	no	CBC	Choose one of: CBC, CFB, OFB, CTR, ECB, CBC/NoPadding, ECB/NoPadding.
Input	string	no	Raw	Choose one of: Raw, Hex.
Output	string	no	Hex	Choose one of: Hex, Raw.

Input is the primary value (previous step output or a literal).

Returned value

Type	Description
string	Result of the SM4 Decrypt transformation.

Limitations

• Wrong key, algorithm options, or malformed input typically raises an evaluation error — fix Input or options before re-running.

Example

Run SM4 Decrypt

SM4 is a 128-bit block cipher, currently established as a national standard (GB/T 32907-2016) of China. Adjust optional parameters when the defaults do not match your payload.

1. Set Input to the value to transform (previous step output or a literal).

2. Review Key, IV, Mode, Input, Output and keep defaults unless your format requires otherwise.

3. Confirm Output value shows the transformed result.