bufferIndex += 4;

        final int pad = bufferIndex - (getHeaderStart() + securityBufferOffset);
        this.blob = new byte[securityBufferLength];
        System.arraycopy(buffer, getHeaderStart() + securityBufferOffset, this.blob, 0, securityBufferLength);
        bufferIndex += pad;
        bufferIndex += securityBufferLength;

        return bufferIndex - start;
    }

        } catch (final UnsupportedEncodingException uee) {
            return 0;
        }

        writeInt2(subCommand & 0xFF, dst, dstIndex);
        dstIndex += 2;
        System.arraycopy(descr, 0, dst, dstIndex, descr.length);
        dstIndex += descr.length;
        writeInt2(0x0001, dst, dstIndex);
        dstIndex += 2;
        writeInt2(maxDataCount, dst, dstIndex);
        dstIndex += 2;

        final int offsetOffset = dstIndex;
        SMBUtil.writeInt2(data.length, dst, dstIndex + 2);
        dstIndex += 4;
        SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, offsetOffset);

        System.arraycopy(data, 0, dst, dstIndex, data.length);
        dstIndex += data.length;
        return dstIndex - start;
    }

    /**
     * {@inheritDoc}
     *

        dst[dstIndex] = (byte) 0x01; /* BufferFormat */
        dstIndex++;
        SMBUtil.writeInt2(this.count, dst, dstIndex); /* DataLength? */
        dstIndex += 2;
        System.arraycopy(this.b, this.off, dst, dstIndex, this.count);
        dstIndex += this.count;

        return dstIndex - start;
    }

    @Override

        SMBUtil.writeInt2(this.notifyFlags, dst, dstIndex + 2);
        dstIndex += 4;

        SMBUtil.writeInt4(this.outputBufferLength, dst, dstIndex);
        dstIndex += 4;

        System.arraycopy(this.fileId, 0, dst, dstIndex, 16);
        dstIndex += 16;

        SMBUtil.writeInt4(this.completionFilter, dst, dstIndex);
        dstIndex += 4;
        dstIndex += 4; // Reserved

        bufferIndex += 8;

        this.fileAttributes = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;
        bufferIndex += 4; // Reserved2

        System.arraycopy(buffer, bufferIndex, this.fileId, 0, 16);
        bufferIndex += 16;

        final int createContextOffset = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        out[i++] = (byte) (der.length & 0xFF);
        System.arraycopy(der, 0, out, i, der.length);
        i += der.length;
        out[i++] = (byte) ((nb.length >> 24) & 0xFF);
        out[i++] = (byte) ((nb.length >> 16) & 0xFF);
        out[i++] = (byte) ((nb.length >> 8) & 0xFF);
        out[i++] = (byte) (nb.length & 0xFF);
        System.arraycopy(nb, 0, out, i, nb.length);
        return out;
    }

            // Verify additional information
            assertEquals(0x12345678, SMBUtil.readInt4(buffer, 76));

            // Verify file ID
            byte[] actualFileId = new byte[16];
            System.arraycopy(buffer, 80, actualFileId, 0, 16);
            assertArrayEquals(testFileId, actualFileId);

            // Verify that info.encode was called
            verify(mockInfo, times(1)).encode(any(byte[].class), anyInt());

        // Signature (16 bytes)
        byte[] signature = new byte[16];
        new SecureRandom().nextBytes(signature);
        System.arraycopy(signature, 0, buffer, index, 16);
        index += 16;

        // Nonce (16 bytes)
        System.arraycopy(testNonce, 0, buffer, index, 16);
        index += 16;

        // Original message size (4 bytes) - little-endian
        int messageSize = 1024;

     */
    private static String createValidType3Message() {
        // Build a properly formatted Type 3 message
        byte[] message = new byte[200];

        // NTLMSSP signature
        System.arraycopy("NTLMSSP\0".getBytes(), 0, message, 0, 8);

        // Type 3 indicator
        message[8] = 0x03;

        // LM Response (24 bytes at offset 64)
        message[12] = 24; // Length
        message[13] = 0;