Approved_users, bureaucrat, administrator
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→Finding SPA Leakage
If you are using Capture V3.5.2 or later you will have support for the length of the trigger output being high reported back to you. If you run capture-1 for example you'll see the trigger was high for XX cycles:
This is way too long! You won't be able to capture the entire trace in your 24000 length sample buffer. Instead we'll make the demo even shorter - in our case looking at the source code you can see there is a "flag" which is set high only AFTER the first 1 is received. Thus using a fixed plaintext, change the input plaintext to be all 00's (<code>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00</code>):
[[File:B11_acqsetting.png|400px]]