On Fri, 23 Aug 2019 at 10:07, Robert Moskowitz <rgm@htt-consult.com> wrote:
Are there commands to use the SHA3 hashes and there variants?

See FIPS 202 and NIST SP800-185

thanks 

man openssh has:

    sha3-224
           SHA-3 224 Digest
       sha3-256
            SHA-3 256 Digest
        sha3-384
            SHA-3 384 Digest
       sha3-512
            SHA-3 512 Digest
        shake128
           SHA-3 SHAKE128 Digest
       shake256
           SHA-3 SHAKE256 Digest
       sm3 SM3 Digest

--
George N. White III