nim-poseidon2/poseidon2/compress.nim
2023-11-13 14:24:06 +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