### This code was implemented by:* Robert Primas### This code uses the following files from external sources:* KeccakP-400-SnP.h, KeccakP-400-reference.c :From: [eXtended Keccak Code Package](https://github.com/XKCP/XKCP/tree/master/lib/low/KeccakP-400/Reference)Copyright: See file header* brg_endian.h :From: [eXtended Keccak Code Package](https://github.com/XKCP/XKCP/tree/master/lib/common)Copyright: See file header
