gmsm/sm4/cipher_asm_fuzzy_test.go

//go:build (amd64 || arm64) && !purego

package sm4

import (
	"crypto/rand"
	"io"
	"reflect"
	"testing"
	"time"
)

func TestExpandKey(t *testing.T) {
	key := make([]byte, 16)

	var encRes1 [rounds]uint32
	var decRes1 [rounds]uint32
	encRes2 := make([]uint32, 32)
	decRes2 := make([]uint32, 32)
	var timeout *time.Timer

	if testing.Short() {
		timeout = time.NewTimer(10 * time.Millisecond)
	} else {
		timeout = time.NewTimer(2 * time.Second)
	}

	for {
		select {
		case <-timeout.C:
			return
		default:
		}
		io.ReadFull(rand.Reader, key)
		expandKeyGo(key, &encRes1, &decRes1)
		expandKey(key, encRes2, decRes2)
		if !reflect.DeepEqual(encRes1[:], encRes2) {
			t.Errorf("expected=%x, result=%x\n", encRes1[:], encRes2)
		}
		if !reflect.DeepEqual(decRes1[:], decRes2) {
			t.Errorf("expected=%x, result=%x\n", decRes1[:], decRes2)
		}
	}
}