Kodewerx

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 Post subject: 71 C9 3F E9 BB 0A 3B 18
PostPosted: Sat Apr 02, 2011 11:50 pm 
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Krew (Admin)
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Joined: Sun Oct 01, 2006 9:26 pm
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Title: All in a day's work.
I don't know why, but 3DS issues a new card command during startup. It's the second command sent, and never changes. It also reads back no data. :mystery:

Also, unrelated, but interesting: Bit-28 in the ROM ID signifies the game uses the 3DS protocol.

Pictures!
http://parasyte.kodewerx.org/projects/3ds/la_1.jpg

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PostPosted: Sun Apr 03, 2011 10:52 am 
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Krew (Admin)
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Location: *poof*
Title: The Mad Hacker
I would love to learn what you're doing to get this info. So fascinating to me.


And I know it's early (and Kodewerx never really got into Wii hacking), but if you want to host it, I would love to replicate GeckoCodes for 3DS codes sexified with Kodewerx header. I suspect Kodewerx could do very well with 3DS hacking - even if it's just for fun, it'll boost traffic. =D
(and I can send paypal to pay for hosting)

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PostPosted: Sun Apr 03, 2011 12:55 pm 
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Krew (Admin)
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Title: All in a day's work.
Yes. KW needs a little pickmeup.

As for the photo, it's just a logic analyzer on the card bus. It's pretty easy to read the wave forms. Just getting the equipment is expensive, and there is soldering involved.

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PostPosted: Mon Apr 04, 2011 6:07 pm 
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Krew (Admin)
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Title: The Mad Hacker
We've got access to the Wii's Mii channel and the 3DS can receive Miis from Wii.
Could a hacked Mii on the Wii + some alterations on the sending be the key for a chain loader on 3DS?

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PostPosted: Tue Apr 05, 2011 12:05 am 
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Krew (Admin)
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Title: All in a day's work.
Depends if there are any buffers to overflow, and if they are exploitable. The most common buffer overflows are caused by bad memory management around string manipulations. For example, using a really long name that should not be possible. Other attack vectors include exploiting decompression code, and plain old pointer manipulations.

I thought the same thing about GameCube being hacked through the GBA link (not GBA Player) and look how that turned out! The original hack was through Phantasy Star Online. lol.

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PostPosted: Tue Apr 05, 2011 5:57 pm 
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Komrade
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Which pins did you have to choose from aside from the card's bus and is it safe to assume what you're analyzing isn't encrypted?

Edit: What about stepping through things so they make sense, etc? Is there a clock you can manipulate?

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PostPosted: Wed Apr 06, 2011 8:56 pm 
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Krew (Admin)
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Title: All in a day's work.
It is the second command sent and does not change between eject/insert cycles, or even different game cards. There is no pre-initialization for any kind of encryption. If it's encrypted at all, decrypting it would be unnecessary.

See also: http://3dbrew.org/wiki/Gamecards

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