hmac.update(this.ntResponse, 0, 16); // only first 16 bytes of ntResponse
            final byte[] userSessionKey = hmac.digest();

            if (getFlag(NTLMSSP_NEGOTIATE_KEY_EXCH)) {
                this.masterKey = new byte[16];
                tc.getConfig().getRandom().nextBytes(this.masterKey);

                final byte[] encryptedKey = new byte[16];
                final Cipher rc4 = Crypto.getArcfour(userSessionKey);

import (
	"bytes"
	"testing"

	"github.com/tinylib/msgp/msgp"
)

func TestMarshalUnmarshalnsScannerOptions(t *testing.T) {
	v := nsScannerOptions{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

     */
    public static int enc_uint32le(final int i, final byte[] dst, int di) {
        dst[di] = (byte) (i & 0xFF);
        di++;
        dst[di++] = (byte) (i >> 8 & 0xFF);
        dst[di++] = (byte) (i >> 16 & 0xFF);
        dst[di] = (byte) (i >> 24 & 0xFF);
        return 4;
    }

    /* Decode integers
     */

    /**

    @Override
    public Hasher putByte(byte b) {
      update(1, b & 0xFF);
      return this;
    }

    @CanIgnoreReturnValue
    @Override
    public Hasher putBytes(byte[] bytes, int off, int len) {
      checkPositionIndexes(off, off + len, bytes.length);
      int i;
      for (i = 0; i + 4 <= len; i += 4) {
        update(4, getIntLittleEndian(bytes, off + i));
      }
      for (; i < len; i++) {

}

type CustomSerializer struct {
	prefix []byte
}

func NewCustomSerializer(prefix string) *CustomSerializer {
	return &CustomSerializer{prefix: []byte(prefix)}
}

func (c *CustomSerializer) Scan(ctx context.Context, field *schema.Field, dst reflect.Value, dbValue interface{}) (err error) {
	switch value := dbValue.(type) {
	case []byte:
		err = field.Set(ctx, dst, bytes.TrimPrefix(value, c.prefix))
	case string:

        // Create buffer with exact decode size
        byte[] tempBuffer = new byte[50];
        original.encode(tempBuffer, 0);

        // Copy only the first 36 bytes (what decode reads)
        byte[] buffer = new byte[36];
        System.arraycopy(tempBuffer, 0, buffer, 0, 36);

        // Decode

        assertEquals((byte) 0xCC, buffer[4]);
        assertEquals((byte) 0xCC, buffer[5]);
        assertEquals((byte) 0xCC, buffer[6]);
        assertEquals((byte) 0xCC, buffer[7]);

        // FileId (16 bytes) - should match our test file ID
        byte[] wireFileId = new byte[16];
        System.arraycopy(buffer, 8, wireFileId, 0, 16);
        assertArrayEquals(testFileId, wireFileId);

            // Arrange: revision=1, count=2, identAuth zeros except last byte, subauth 10, 20
            byte[] ident = new byte[] { 0, 0, 0, 0, 0, 5 };
            rpc.sid_t st = buildSidT((byte) 1, ident, 10, 20);

            byte[] bytes = SID.toByteArray(st);

            // Act: construct from bytes and re-encode
            SID sid = new SID(bytes, 0);
            byte[] roundTrip = sid.toByteArray();

            // Assert

        int namedPipeState = 0x02;
        int readDataAvailable = 256;
        int numberOfMessages = 5;
        int messageLength = 128;
        byte[] testData = { (byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC, (byte) 0xBB, (byte) 0xAA, (byte) 0x99, (byte) 0x88 };

        // Write values to buffer at offset
        SMBUtil.writeInt4(namedPipeState, buffer, bufferIndex);

        // Context header: 16 bytes
        // Name: 4 bytes ("DLse")
        // Padding: 4 bytes (to align data to 8-byte boundary)
        // Standard lease data: 32 bytes
        // Directory-specific data: 20 bytes (CacheScope(4) + MaxCacheAge(8) + Flags(4) + NotificationFilter(4))
        return 16 + 4 + 4 + 32 + 20;
    }

    @Override
    public int encode(byte[] buffer, int offset) {