Hash64: hash a single message in one call, return 64-bit output

init spooky state

This is used if the input is 96 bytes long or longer. The internal state is fully overwritten every 96 bytes. Every input bit appears to cause at lea

Murmur3A compatable all-at-once */

Provide an API suitable for smhasher */

left rotate a 64-bit value by k bytes

Functions to convert cmark_nodes to groff man strings.

short hash ... it could be used on any message, but it's used by Spooky just for short messages.

Mix all 4 inputs together so that h0, h1 are a hash of them all. For two inputs differing in just the input bits Where "differ" means xor or subtract

The goal is for each bit of the input to expand into 128 bits of apparent entropy before it is fully overwritten. n trials both set and cleared at lea