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package keccakf1600
import "testing"
// From the Keccak code package.
var permutationOfZeroes = [25]uint64{
0xF1258F7940E1DDE7, 0x84D5CCF933C0478A, 0xD598261EA65AA9EE,
0xBD1547306F80494D, 0x8B284E056253D057, 0xFF97A42D7F8E6FD4,
0x90FEE5A0A44647C4, 0x8C5BDA0CD6192E76, 0xAD30A6F71B19059C,
0x30935AB7D08FFC64, 0xEB5AA93F2317D635, 0xA9A6E6260D712103,
0x81A57C16DBCF555F, 0x43B831CD0347C826, 0x01F22F1A11A5569F,
0x05E5635A21D9AE61, 0x64BEFEF28CC970F2, 0x613670957BC46611,
0xB87C5A554FD00ECB, 0x8C3EE88A1CCF32C8, 0x940C7922AE3A2614,
0x1841F924A2C509E4, 0x16F53526E70465C2, 0x75F644E97F30A13B,
0xEAF1FF7B5CECA249,
}
func TestKeccakF1600x4(t *testing.T) {
test := func(t *testing.T, f func(s *StateX4, a []uint64)) {
t.Helper()
var state StateX4
a := state.Initialize()
f(&state, a)
for i := 0; i < 25; i++ {
for j := 0; j < 4; j++ {
if a[4*i+j] != permutationOfZeroes[i] {
t.Fatal()
}
}
}
}
t.Run("Generic", func(t *testing.T) {
test(t, func(s *StateX4, a []uint64) { permuteScalar(a) })
})
t.Run("SIMD", func(t *testing.T) {
test(t, func(s *StateX4, a []uint64) { s.Permute() })
})
}
func BenchmarkF1600x4(b *testing.B) {
benchmark := func(b *testing.B, f func(s *StateX4, a []uint64)) {
var state StateX4
a := state.Initialize()
for i := 0; i < b.N; i++ {
f(&state, a)
}
}
b.Run("Generic", func(b *testing.B) {
benchmark(b, func(s *StateX4, a []uint64) { permuteScalar(a) })
})
b.Run("SIMD", func(b *testing.B) {
benchmark(b, func(s *StateX4, a []uint64) { s.Permute() })
})
}
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