var extKey, iv [32]byte
	key := GenerateKey(extKey[:], rand.Reader)
	sealedKey := key.Seal(extKey[:], iv, "SSE-S3", "bucket", "object")
	sealedKey.Algorithm = InsecureSealAlgorithm
	if err := key.Unseal(extKey[:], sealedKey, "SSE-S3", "bucket", "object"); err == nil {
		t.Errorf("'%s' test succeeded but it should fail because the legacy algorithm was used", sealedKey.Algorithm)
	}
}

var derivePartKeyTest = []struct {