nim-poseidon2/griffin/compress.nim
2026-01-21 14:36:11 +01:00

11 lines
173 B
Nim

import ./types
import ./permutation
# 2-to-1 compression
func compress*(a, b : F, key = zero) : F =
var x = a
var y = b
var z = key
permInPlace(x, y, z)
return x