Keccak was developed by Guido Bertoni, Joan Daemen, Michaël Peeters and Gilles Van Assche and standardized as SHA-3 in 2015.
News and FAQ for the Geocache Wizard

Keccak was developed by Guido Bertoni, Joan Daemen, Michaël Peeters and Gilles Van Assche and standardized as SHA-3 in 2015.