# The "sha3sum" command:

Usage:

`fossil``sha3sum`*FILE...*Compute an SHA3 checksum of all files named on the command-line. If a file is named "-" then take its content from standard input.

To be clear: The official NIST FIPS-202 implementation of SHA3 with the added 01 padding is used, not the original Keccak submission.

Options:

- --224
- Compute a SHA3-224 hash
- --256
- Compute a SHA3-256 hash (the default)
- --384
- Compute a SHA3-384 hash
- --512
- Compute a SHA3-512 hash
--sizeN- An N-bit hash. N must be a multiple of 32 between 128 and 512.
-h,--dereference- If FILE is a symbolic link, compute the hash on the object pointed to, not on the link itself.