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Author Topic: RSA Signature error  (Read 4420 times)
KasperH
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« on: August 26, 2016, 04:07:21 AM »

Hello Nefmoto cummunity Smiley

i tried flashing a self modified bin file yesterday.
The car started and ran fine first time but wouldnt turn over and i had to boot mode flash a stock file to get it to run again.
i checksummed the file with mtx and me7check before flashing and there were 0 checksum errors but a rsa signature error,
and i suspect rsa error to "brick" the ecu.

is there any way to fix the rsa error or disable rsa checking?

thanks in advance.
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SB_GLI
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« Reply #1 on: August 26, 2016, 07:35:33 AM »

mtx plugin is old news and doesn't correct RSA.   Use me7sum and profit.
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KasperH
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« Reply #2 on: August 26, 2016, 10:49:42 AM »

i made a spelling mistake, i used me7sum, not me7check Smiley
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nyet
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« Reply #3 on: August 26, 2016, 11:14:54 AM »

It is not possible that you used ME7Sum to *correct* and ended up with a rsa error.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
prj
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« Reply #4 on: August 27, 2016, 08:07:27 PM »

Did you use NLS/LC patcher on your binary?
If yes, that is the reason for the RSA error.

Either turn RSA off or implement NLS/LC so that it does not overwrite memory regions responsible for RSA calculation.
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