return nil, errMalformedJWKRSAKey
		}

		nbuf, err := base64.RawURLEncoding.DecodeString(key.N)
		if err != nil {
			return nil, errMalformedJWKRSAKey
		}

		var n, e big.Int
		n.SetBytes(nbuf)
		e.SetBytes(ebuf)

		return &rsa.PublicKey{
			E: int(e.Int64()),
			N: &n,
		}, nil
	case "EC":
		if key.Crv == "" || key.X == "" || key.Y == "" {
			return nil, errMalformedJWKECKey
		}

	bts := make([]byte, 0, v.Msgsize())
	bts, _ = v.MarshalMsg(bts[0:0])
	b.SetBytes(int64(len(bts)))
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		bts, _ = v.MarshalMsg(bts[0:0])
	}
}

func BenchmarkUnmarshalBaseOptions(b *testing.B) {
	v := BaseOptions{}
	bts, _ := v.MarshalMsg(nil)
	b.ReportAllocs()
	b.SetBytes(int64(len(bts)))
	b.ResetTimer()
	for i := 0; i < b.N; i++ {

	bts := make([]byte, 0, v.Msgsize())
	bts, _ = v.MarshalMsg(bts[0:0])
	b.SetBytes(int64(len(bts)))
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		bts, _ = v.MarshalMsg(bts[0:0])
	}
}

func BenchmarkUnmarshalMetricDescription(b *testing.B) {
	v := MetricDescription{}
	bts, _ := v.MarshalMsg(nil)
	b.ReportAllocs()
	b.SetBytes(int64(len(bts)))
	b.ResetTimer()
	for i := 0; i < b.N; i++ {

	}

	b.Run("requested-none", func(b *testing.B) {
		b.ReportAllocs()
		b.ResetTimer()
		b.SetBytes(855) // number of versions...
		for i := 0; i < b.N; i++ {
			mergeXLV2Versions(8, false, 0, vers...)
		}
	})

	b.Run("requested-v1", func(b *testing.B) {
		b.ReportAllocs()
		b.ResetTimer()
		b.SetBytes(855) // number of versions...
		for i := 0; i < b.N; i++ {
			mergeXLV2Versions(8, false, 1, vers...)
		}

				b.Fatal(err)
			}
			b.Logf("Serialized size: %d bytes", len(enc))
			rng := rand.New(rand.NewSource(0))
			dump := make([]byte, len(enc))
			b.Run("UpdateObjectVersion", func(b *testing.B) {
				b.SetBytes(int64(size))
				b.ResetTimer()
				b.ReportAllocs()
				for i := 0; i < b.N; i++ {
					// Load...
					xl = xlMetaV2{}
					err := xl.Load(enc)
					if err != nil {
						b.Fatal(err)
					}