byte[] _sessionKey = null;
        if (lmResponseOffset == 52 || ntResponseOffset == 52 || domainOffset == 52 || userOffset == 52 || workstationOffset == 52) {
            flags = NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_OEM;
            charset = getOEMEncoding();
        } else {
            _sessionKey = readSecurityBuffer(material, 52);
            flags = readULong(material, 60);

        dstIndex += 2;

        SMBUtil.writeInt4(52, dst, dstIndex); // DataLength
        dstIndex += 4;

        // Write context name
        System.arraycopy(CONTEXT_NAME_BYTES, 0, dst, dstIndex, 4);
        dstIndex += 4;

        // Padding to align data to 8-byte boundary
        dstIndex += 4;

        // Write lease V2 data (52 bytes total)

    public int decode(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
        int start = bufferIndex;

        if (len < 52) {
            throw new SMBProtocolDecodingException("Lease V2 context data too short: " + len);
        }

        // Read lease V2 data (52 bytes)
        byte[] keyBytes = new byte[16];
        System.arraycopy(buffer, bufferIndex, keyBytes, 0, 16);

    void testTransformHeaderSize() {
        // When
        int headerSize = transformHeader.size();

        // Then
        assertEquals(52, headerSize); // SMB2 Transform Header is 52 bytes
    }

    // Note: SMB2 Transform Header doesn't have a protocol ID field
    // The protocol ID is part of the encrypted SMB2 message, not the transform header

    @Test

     */
    public static final int TRANSFORM_PROTOCOL_ID = 0xFD534D42;

    /**
     * Size of the transform header in bytes
     */
    public static final int TRANSFORM_HEADER_SIZE = 52;

    private final byte[] signature = new byte[16];
    private final byte[] nonce = new byte[16];
    private int originalMessageSize;
    private int flags;
    private long sessionId;

    /**

    long b = rotateRight(a + z, 52);
    long c = rotateRight(a, 37);
    a += load64(bytes, offset + 8);
    c += rotateRight(a, 7);
    a += load64(bytes, offset + 16);
    long vf = a + z;
    long vs = b + rotateRight(a, 31) + c;
    a = load64(bytes, offset + 16) + load64(bytes, offset + length - 32);
    z = load64(bytes, offset + length - 8);
    b = rotateRight(a + z, 52);
    c = rotateRight(a, 37);

        // Third name entry (18 bytes) - matching queryAddress
        String name3 = "TEST            ";
        System.arraycopy(name3.getBytes("US-ASCII"), 0, src, srcIndex + 37, 16);
        src[srcIndex + 52] = 0x20; // hex code matching mockQueryAddress
        src[srcIndex + 53] = 0x04; // flags: active

        // MAC address (6 bytes)
        byte[] testMac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 };

  // The mask for the sign, according to the {@link
  // Double#doubleToRawLongBits(double)} spec.
  static final long SIGN_MASK = 0x8000000000000000L;

  static final int SIGNIFICAND_BITS = 52;

  static final int EXPONENT_BIAS = 1023;

  /** The implicit 1 bit that is omitted in significands of normal doubles. */
  static final long IMPLICIT_BIT = SIGNIFICAND_MASK + 1;

    private long leaseDuration;  // For V2
    private Smb2LeaseKey parentLeaseKey;  // For V2
    private int epoch;  // For V2
    
    // Wire format structure
    // Lease V1: 32 bytes
    // Lease V2: 52 bytes
    
    @Override
    public void encode(byte[] buffer, int offset) {
        // Write context header
        writeInt4(buffer, offset, getName().length());  // NameOffset

            assertEquals(49, bytesWritten);

            // Verify written structure
            assertEquals(49, SMBUtil.readInt2(buffer, 50)); // Structure size
            assertEquals(1, buffer[52]); // Padding
            assertEquals(0x01, buffer[53]); // Read flags
            assertEquals(8192, SMBUtil.readInt4(buffer, 54)); // Read length
            assertEquals(16384L, SMBUtil.readInt8(buffer, 58)); // Offset