KMAC256 File Hash
The KMAC256 File Hash tool computes a secure SHA-3–based Message Authentication Code (MAC) for any file using a secret key. You can also customize the hash with optional Function Name (N) and Customization String (S) parameters. All hashing happens locally inside your browser, ensuring that your file and key remain completely private.
Input
Drag and drop the file here or click to select a file. It will
process locally and won't be uploaded.
Output
Settings