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Need help with Seed key algorithm for 27 61 RSA sign
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Topic: Need help with Seed key algorithm for 27 61 RSA sign (Read 179 times)
Marty_
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Need help with Seed key algorithm for 27 61 RSA sign
« on: November 05, 2024, 11:19:40 AM »
Hi all,
I'm trying some stuff with a BMW 7DCT300 TCU as a hobby/learning project and I'm stuck at an seed key routine.
Does someone have C/C#/C++/Python code for this TCU so I can see how this routine should work?
It seems to be a 16 Byte seed and a 128 Byte RSA sign.
The UDS seed security request is 0x07E1 0x02 0x27 0x61.
The UDS sign/key sending is 0x7E1 0x10 0x82 0x27 0x61 and 128byte key.
It seems that the RSA sign can be forged.
Can anyone help me with this.
I have a couple of seed/key combinations that worked which I can provide.
Thanks! Smile
Kind regards,
Marty_
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prj
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Re: Need help with Seed key algorithm for 27 61 RSA sign
« Reply #1 on: November 05, 2024, 01:20:25 PM »
Sir, this is "Reverse Engineering", not give me free code and make me a sandwich.
How about doing some actual reverse engineering or posting this in paid requests?
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