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by vtl
20 Apr 2022, 12:00
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Re: Vida CEM swapping

charlie13 wrote: 20 Apr 2022, 09:48 I want to connect to table P3. The can contacts are in the blue plug. I am looking for power and minus. Will anyone help? May be priv
This is what I had.
by vtl
22 Apr 2022, 07:24
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Re: Vida CEM swapping

charlie13 wrote: 22 Apr 2022, 04:13 Where can I find missing libraries?
That's a standalone utility that you run on host.
by vtl
22 Apr 2022, 13:08
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Re: Vida CEM swapping

charlie13 wrote: 22 Apr 2022, 13:06 No
Oh, pardon, change p1 to count from 20.
by vtl
25 Apr 2022, 08:31
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Re: Vida CEM swapping

Looking at your code... I know what 'n' is but where did 'm' come from? Also what is 'k'? n = 0xc541a9, m = 0x1212050 I took my time, disassembled one of P3 dumps, found the routine and actually understood what the hash is doing. And rewrote it in a clean, understandable C. The source code that is ...
by vtl
25 Apr 2022, 21:08
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Re: Vida CEM swapping

The 'struct foo' and your 'if' statement have me a little stumped. Does 'n ^=m' take place for all 64 bits or only if the 'if' statement is 1? 'n' xor 'm' for all bits of 'n' if conditional statement is 1. I'm still trying to figure out where 'm' came from also. This is 0x109028 from your (internet...
by vtl
25 Apr 2022, 21:32
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Re: Vida CEM swapping

P3 owners: Would you prefer a lower maximum crack time (10.5 hours ) or a chance of finding the PIN real fast? With the chance finding the PIN real fast comes the risk that it will take real long time ( 63 hours ). One does not follow from another. From the hash properties, iterating over 3 bytes i...
by vtl
25 Apr 2022, 21:54
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Re: Vida CEM swapping

Those interested: check out the P3 branch, it got a fix for "ugh", and cracking in HEX as well.

I don't have a slow P3 CEM, can't test how the new code works there.

1000 random seed/key crack simulation shows average cracking time of 2h 41m running at 866 pin/s.
by vtl
27 Apr 2022, 07:08
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Re: Vida CEM swapping

How do you get ~860 pin/sec? I am getting stable 440 pins/sec using VTL's the most recent build. There are "fast" and "slow" CEMs. You have a "slow" one. I could also not compile VTL's seed-gen.c utility. I was trying to compile with devc++ and with VScode as well. It ...
by vtl
28 Apr 2022, 10:25
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Re: Vida CEM swapping

Best CEM protection is in brick shaped ones, from P2 -04. It is the dumbest code, which is resistant to timing attacks because of how dumb is it ;) Mine is a 2001. In a way I'm glad the security is resistant to a timing attack since there's less chance of an outside attack on it. However, with it b...
by vtl
28 Apr 2022, 10:34
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Re: Vida CEM swapping

gnalan wrote: 28 Apr 2022, 10:27 What all models does the Algo work on?
All Ford Volvos and up: https://en.wikipedia.org/wiki/Ford_EUCD_platform