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→Setting up the Hardware
This tutorial can use either the [[CW1173_ChipWhisperer-Lite]], [[CW1200_ChipWhisperer-Pro]], or [[CW1002_ChipWhisperer_Capture_Rev2]] hardware along with the [[CW301_Multi-Target]] board. Note that you '''don't need hardware''' to complete the tutorial. Instead you can download [https://www.assembla.com/spaces/chipwhisperer/wiki/Example_Captures example traces from the ChipWhisperer Site], just look for the traces titled ''XMEGA: AES128 Hardware Accelerator (ChipWhisperer Tutorial #A6)''.
'''NOTE:''' The ChipWhisperer-Lite Target Board contains an XMEGA device, but this device DOES NOT contain the hardware crypto engine. Only the CW301 Multi-Target board contains an XMEGA with a hardware AES engine.'''
This example uses the XMEGA Device. You can see instructions for programming in the [[Installing ChipWhisperer]] section, this tutorial assumes you have the programmer aspect working.
The Multi-Target board should be plugged into the ChipWhisperer Capture Rev2 via the 20-pin target cable. The ''VOUT'' SMA connector is wired to the ''LNA'' input on the ChipWhisperer-Capture Rev2 front panel. The general hardware setup is as followsslightly different for the ChipWhisperer-Lite/Pro and older Capture-Rev2: === Using ChipWhisperer-Lite / ChipWhisperer-Pro === === Using Capture Rev 2 ===
<blockquote># 20-Pin Header connects Multi-Target to Capture Hardware
For more information on these jumper settings see the XMEGA section of [[CW301_Multi-Target]].
</blockquote>
=== Building/Programming the XMEGA Target ===
Once you have one of the above setups working, you need to program the device. We'll first double-check the communication using our classic software AES, then enable the hardware crypto module.
As described in [[Installing ChipWhisperer]], you'll need to configure the AVR-GCC compiler. Assuming you have this setup, you can run <code>make</code> in the directory <code>chipwhisperer\hardware\victims\firmware\simpleserial-aes</code>. Before doing that, edit the <code>makefile</code> to select the CW301 XMEGA target. This is done by uncommenting the "CW301_XMEGA" platform define as follows:
AVR Memory Usage
----------------
Device: atxmega128a3atxmega16a4
Program: 3100 bytes (2.2% Full)
-------- end --------</pre>
Using either AVRStudio or AVRDudethe XMEGA Programmer, program the XMega16A4 device (it is connected to the programmer built into the ChipWhisperer) with the resulting simpleserial.hex file. === Capturing Traces === ==== CW-Capture Lite/Pro Specific Setup ==== The following are specific instructions only for the ChipWhisperer-Lite or -Pro: # ==== CW-Capture Rev2 Specific Setup ==== The following are specific instructions only for the ChipWhisperer-Capture Rev 2: #From the ''Project'' menu select the ''Example Scripts'' and then ''ChipWhisperer-Rev2: SimpleSerial Target''#: [[File:runscript.png|image]]#The script will automatically connect to the capture hardware and run 2 example traces. They will not yet work on the XMega as additional setup is required. You must switch the RX/TX pins:#:[[File:xmegarxtx.png|image]]#Run a 'Capture 1', you should confirm the encryption algorithm is working:#:[[File:capture1_working.png|image]]#Jump to the generic capture instructions (next) ==== Trace Capture Instructions ==== #Switch from software to hardware crypto. To do this you'll have to change the <code>makefile<\code> for the project.
== Analyzing of Power Traces ==