344 lines
22 KiB
HTML
344 lines
22 KiB
HTML
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<html lang="en">
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<head>
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<title>Using Dinkey Pro/FD with MATLAB</title>
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{
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/* Make filepaths stand out in sections that are already bold */
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font-weight: normal;
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}
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div.col_wrapper
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{
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clear: both;
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overflow: hidden;
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}
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div.two_col
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width: 50%;
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float: left;
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code {
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color: gray;
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white-space: nowrap;
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}
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pre {
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padding: 15px;
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background-color: #EEEEEE;
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}
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pre > code { /* Block level code snippets */
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white-space: pre; /* Override nowrap used for inline code */
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color: inherit;
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}
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code .comment
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{
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color: green;
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}
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code .keyword
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{
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font-weight: bold;
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color: blue;
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}
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code .string
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{
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color: #A00000;
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}
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code .constant
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{
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font-weight: bold;
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}
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</style>
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</head>
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<body>
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<h1>Using Dinkey Pro/FD with MATLAB</h1>
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<div class="alert information">
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<p>
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The Shell protection method supports Windows executables produced by the MATLAB Compiler.
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</p>
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<p>
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API protection checks in MATLAB are implemented using the M-file <span class="filepath">ddprotcheck.p</span> to communicate with the dongle via the appropriate shared library
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(<span class="filepath">dpwin32.dll</span> on 32-bit Windows, <span class="filepath">dplin64.so</span> on 64-bit Linux, etc.).
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You should lock these shared libraries with the API method using DinkeyAdd as described in the user manual, and distribute the locked libraries with your software.
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</p>
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</div>
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<p>
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If you are not already familiar with calling shared libraries from MATLAB code,
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it is strongly recommended that you read the MATLAB documentation on this topic.
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Depending on your version of MATLAB, you may need to install a C compiler and configure MATLAB to use it with the command <code>mex -setup</code>.
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Again, refer to the MATLAB documentation for more information.
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</p>
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<p>
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See <span class="manual">Modifying Your Code</span> in the user manual for information on using the API.
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Below is an overview of how the <code>ddprotcheck</code> function is used in MATLAB.
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</p>
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<pre><code>ddprotcheck Call the Dinkey Pro/FD API.
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[RETCODE,DRIS] = ddprotcheck(LIBNAME,DRIS) calls the API via the
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external library LIBNAME. DRIS is a struct used to pass inputs to the
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API and receive outputs. RETCODE is the return code of the API call.
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[RETCODE,DRIS] = ddprotcheck(LIBNAME,DRIS,@CRYPTFUNCTION) additionally
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provides an extra layer of security. The function CRYPTFUNCTION
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is used to encrypt the DRIS before it is passed between MATLAB and the
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external library.</code></pre>
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<p>
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In MATLAB, the <code>DRIS</code> is a MATLAB structure with some slight differences to the <code>DRIS</code>
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documented in <span class="manual">Structures > DRIS Structure</span> in the user manual.
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These differences are:
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</p>
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<ul>
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<li>
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The fields <code>header</code> and <code>size</code> are set automatically by <span class="filepath">ddprotcheck.p</span>.
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You do not need to set these fields in your code.
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</li>
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<li>
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The <code>seed1</code> and <code>seed2</code> fields must be 1-by-4 vectors of type <code>uint8</code>, not integers.
|
|
</li>
|
|
<li>
|
|
<code>rw_data_ptr</code> is replaced by <code>rw_data</code>.
|
|
This field is the actual data read from/to be written to the dongle (rather than a pointer to it).
|
|
It should be a 1-by-N vector of type <code>uint8</code>.
|
|
</li>
|
|
<li>
|
|
When using the functions <code>WRITE_DATA_AREA</code>, <code>ENCRYPT_USER_DATA</code> and <code>DECRYPT_USER_DATA</code>,
|
|
<code>rw_length</code> is automatically set to be the length of the vector <code>rw_data</code>.
|
|
</li>
|
|
<li>
|
|
The fields <code>var_a</code> to <code>var_h</code> are replaced by <code>alg_vars</code>.
|
|
<code>alg_vars</code> must be a 1-by-N vector. The first 8 elements will be used for <code>var_a</code> to <code>var_h</code>.
|
|
If <code>alg_vars</code> has fewer than 8 elements, it will be padded with zeros.
|
|
</li>
|
|
</ul>
|
|
<p>
|
|
<code>DRIS</code> fields are automatically converted to the data types specified in <span class="manual">Structures > DRIS Structure</span>.
|
|
When casting, MATLAB truncates values that cannot fit into a variable of the new data type.
|
|
This can lead to loss of data.
|
|
</p>
|
|
<p>
|
|
Indices for the secure data area of Plus and Net dongles start at <strong>zero</strong>.
|
|
To read the first ten bytes for example, set <code>rw_length = 10</code> and <code>rw_offset = 0</code>.
|
|
</p>
|
|
<p>
|
|
In the user manual, possible values for the <code>function</code> and <code>flags</code> fields are referred to by the
|
|
symbolic names used in other programming languages. Their literal values are provided here for your reference:
|
|
</p>
|
|
|
|
<div class="col_wrapper">
|
|
<div class="two_col">
|
|
<table>
|
|
<tr>
|
|
<th>Function</th><th>Value</th>
|
|
</tr>
|
|
<tr>
|
|
<td>PROTECTION_CHECK</td><td>1</td>
|
|
</tr>
|
|
<tr>
|
|
<td>EXECUTE_ALGORITHM</td><td>2</td>
|
|
</tr>
|
|
<tr>
|
|
<td>WRITE_DATA_AREA</td><td>3</td>
|
|
</tr>
|
|
<tr>
|
|
<td>READ_DATA_AREA</td><td>4</td>
|
|
</tr>
|
|
<tr>
|
|
<td>ENCRYPT_USER_DATA</td><td>5</td>
|
|
</tr>
|
|
<tr>
|
|
<td>DECRYPT_USER_DATA</td><td>6</td>
|
|
</tr>
|
|
<tr>
|
|
<td>FAST_PRESENCE_CHECK</td><td>7</td>
|
|
</tr>
|
|
<tr>
|
|
<td>STOP_NET_USER</td><td>8</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
<div class="two_col">
|
|
<table>
|
|
<tr>
|
|
<th>Flag</th><th>Value</th>
|
|
</tr>
|
|
<tr>
|
|
<td>DEC_ONE_EXEC</td><td>1</td>
|
|
</tr>
|
|
<tr>
|
|
<td>DEC_MANY_EXECS</td><td>2</td>
|
|
</tr>
|
|
<tr>
|
|
<td>START_NET_USER</td><td>4</td>
|
|
</tr>
|
|
<tr>
|
|
<td>USE_FUNCTION_ARGUMENT</td><td>16</td>
|
|
</tr>
|
|
<tr>
|
|
<td>CHECK_LOCAL_FIRST</td><td>32</td>
|
|
</tr>
|
|
<tr>
|
|
<td>CHECK_NETWORK_FIRST</td><td>64</td>
|
|
</tr>
|
|
<tr>
|
|
<td>USE_ALT_LICENCE_NAME</td><td>128</td>
|
|
</tr>
|
|
<tr>
|
|
<td>DONT_SET_MAXDAYS_EXPIRY</td><td>256</td>
|
|
</tr>
|
|
<tr>
|
|
<td>MATCH_DONGLE_NUMBER</td><td>512</td>
|
|
</tr>
|
|
<tr>
|
|
<td>DONT_RETURN_FD_DRIVE</td><td>1024</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
</div>
|
|
<div class="alert important">
|
|
<p>
|
|
Before you distribute your application, you must protect it from modification.
|
|
In general, it is best to use the MATLAB Compiler to create a standalone application that can be run outside of MATLAB.
|
|
It is also possible to convert your source files to P-code, which protects the code from modification,
|
|
but still allows it to be run inside the MATLAB environment.
|
|
However, MathWorks do not recommend P-coding files to protect your intellectual property,
|
|
as P-code files are obfuscated, not encrypted.
|
|
See the MATLAB documentation for more information.
|
|
</p>
|
|
</div>
|
|
<h2>MATLAB Example Files</h2>
|
|
<ul>
|
|
<li><span class="filepath">ddprotcheck.p</span> - a P-file that provides a MATLAB interface to the Dinkey Pro/FD API.</li>
|
|
<li><span class="filepath">dpsample.m</span> - various examples of using <span class="filepath">ddprotcheck.p</span>.</li>
|
|
<li><span class="filepath">dinkeyprowin32proto.p</span> - a prototype P-file that defines the signatures of the API functions for 32-bit MATLAB on Windows.</li>
|
|
<li><span class="filepath">dinkeypro32proto.p</span> - a prototype P-file that defines the signatures of the API functions for 32-bit MATLAB on all other supported platforms.</li>
|
|
<li><span class="filepath">dinkeypro64proto.p</span> - a prototype P-file that defines the signatures of the API functions for 64-bit MATLAB on all supported platforms.</li>
|
|
<li><span class="filepath">dp64_thunk.dll</span> - a compatibility layer required by 64-bit MATLAB to use <span class="filepath">dpwin64.dll</span>.</li>
|
|
<li><span class="filepath">dp64_thunk.dylib</span> - a compatibility layer required by 64-bit MATLAB to use <span class="filepath">dpmac64.dylib</span>.</li>
|
|
<li><span class="filepath">dp64_thunk.so</span> - a compatibility layer required by 64-bit MATLAB to use <span class="filepath">dplin64.so</span>.</li>
|
|
</ul>
|
|
<p>
|
|
<span class="filepath">ddprotcheck.p</span> and the appropriate prototype P-file(s) should be used in your own project.
|
|
If you are using 64-bit MATLAB, you should also include the appropriate thunk file(s) for the platform(s) that you support.
|
|
</p>
|
|
|
|
<h2>Supported Versions</h2>
|
|
<p>
|
|
The MATLAB sample code provided with the Dinkey Pro/FD SDK was written using MATLAB 7 (R14) for Windows,
|
|
and tested using MATLAB 7 on 32-bit Windows and MATLAB R2013a on 64-bit Windows.
|
|
All newer versions should be backwards compatible. The sample code may also work with older versions,
|
|
but no guarantees can be made, and support for older versions is likely to be very limited.
|
|
</p>
|
|
<p>
|
|
<span class="filepath">dp64_thunk.dylib</span> and <span class="filepath">dp64_thunk.so</span> may not be compatible with all versions of MATLAB
|
|
on all versions of macOS and/or all Linux distributions. If you have problems calling our API on 64-bit macOS or 64-bit Linux,
|
|
please contact us with full details of the platform and MATLAB version that you are using.
|
|
</p>
|
|
|
|
<h2>Try It Yourself</h2>
|
|
<div class="alert important">
|
|
<p>
|
|
The sample code is designed to teach you how to use the Dinkey Pro/FD API in MATLAB programs.
|
|
Do not copy the examples verbatim into your own code. Experiment with the sample code to understand how the API works,
|
|
and read the chapter <span class="manual">Increasing Your Protection</span> in the user manual for many suggestions on how to
|
|
make the best use of the API features.
|
|
</p>
|
|
</div>
|
|
<p>
|
|
<span class="filepath">dpsample.m</span> gives simple examples of performing a protection check,
|
|
as well as using various other features of Dinkey Pro/FD.
|
|
To run <span class="filepath">dpsample.m</span> you will first need to use DinkeyAdd to produce a locked copy of the shared library for your platform,
|
|
and program a dongle (if you are using Plus or Net dongles).
|
|
Place the locked library in the same folder as the example files and change MATLAB's current directory to this folder.
|
|
Browse the examples in <span class="filepath">dpsample.m</span> to see how different features can be used.
|
|
All the examples follow the same basic pattern:
|
|
</p>
|
|
<ol>
|
|
<li>Set up the <code>DRIS</code> structure with the relevant information.</li>
|
|
<li>Call the API.</li>
|
|
<li>Use the information returned in the <code>DRIS</code>.</li>
|
|
</ol>
|
|
<p>
|
|
Uncomment the function calls at the top of <span class="filepath">dpsample.m</span>
|
|
to enable the examples of different features, then enter <code>dpsample</code> in the Command Window to run the examples.
|
|
</p>
|
|
<p>
|
|
<span class="filepath">dpsample.m</span> also demonstrates loading and unloading the appropriate shared library for your platform.
|
|
</p>
|
|
<p>
|
|
Parts of the sample code marked with <code>!!!!</code> must be customised with your own functions or values
|
|
for some features to work correctly. Not all features are supported by all dongle models.
|
|
See the user manual for more information.
|
|
</p>
|
|
|
|
</body>
|
|
</html>
|