Security
SM4 Encryption and Decryption
Use SM4 Encryption and Decryption online for free. Adjust the available options and process your data locally in your browser, with no installation or sign-up.
Your data is processed only in your browser
Features and usage
Enter your content or choose the options above, then review the result. Tool calculations run locally in your browser.
Available options
- Operation (Encode, Decode)
- 16-byte key in hex
- 16-byte IV in hex
- Mode (cbc, ecb)
Example input
Hello Toolbox