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<li>From the ''File --> Open Project'' option, navigate to the <code>tut_randkey_randplain.cwp</code> file you save previously. Open this file, ensure it is the file corresponding with the '''randomly changing encryption key'''!</li>
<li>Open the ''Trace Explorer'' tab and Enable it.</li>
<li><p>Change the "Comparison Mode" to "Sum of Absolute Difference", the ''Partition Mode'' to ''HW AES Intermediate'', and select the ''Auto-Save Data to Project'' option:</p>
<p>[[File:traceexplorer1.png|image]]</p></li>
<li><p>Hit the ''Display'' button, and then select ''All On''. This displays the differences between the various groups of Hamming Weight (HW) values:</p>
partitiontype = PartitionHWIntermediate
filename = avr_keyrand_plainrand_1000traces_data\analysis\templates-PartitionHWIntermediate-0-999.npz</pre></li>
== Applying the Template ==
<li><p>Append the ''Template Data'' section you copied from the previous project to your project file:</p>
<p>[[File:projecteditor_addtemplate.png|image]]</p></li>
<li>Use the ''Save Editor to Disk'' button to write these changes (and '''not the Save Project buttonoption'''). Note this assumes that both the <code>tut_fixedkey_randplain.cwp</code> and <code>tut_randkey_randplain.cwp</code> were saved in the same directory, as otherwise the reference to the template file will break!</li><li>Close the Analyzer software. Re-open the software and reload the same project file (e.g. <code>tut_fixedkey_randplain.cwp</code>), this step is needed to ensure the changes you added in are loaded into memory.</li>
<li><p>Change the attack module to ''Profiling'':</p>
<p>[[File:selectprofiling.png|image]]</p></li>
<li><p>Press the ''Attack'' button. Observe that with only a few traces you are able to determine the encryption key:</p>
<p>[[File:attack_working.png|image]]</p></li></ol>
== Links ==
{{Template:Tutorials}}
[[Category:Tutorials]]
