Homebrew The bootroms

tech3475 · May 5, 2016

Just an idea, but could glitching possibly be used, maybe try and bypass the lock code.

Suiginou · May 5, 2016

Xenon Hacks said:
Can this be used to brute force anything http://www.research.ibm.com/quantum?

Grover's algorithm requires at least as many qubits as there are bits in the key. No quantum computers with 128 qubits have been built so far.

Xenon Hacks · May 5, 2016

Suiginou said:
Grover's algorithm requires at least as many qubits as there are bits in the key. No quantum computers with 128 qubits have been built so far.

Fooey

sirocyl · May 5, 2016

Plailect said:
Based on a careful search and analysis by some of us on #Cakey, the (at least old 3DS) MCU appears to be a modified version of the Renesas 78K0/KE2 UPD78F0531AFC-AA1-A.

It is the only 0.5cmx0.5cm BGA 8-bit 64-pin 16kb-ROM MCU that Renesas manufactures. Documentation can be found on that page. It runs a custom ISA (which is why we failed to determine anything from IDA Pro) with opcodes available in the "78K/0 Series for Instructions" manual on the site linked.

There is a metric fuck-ton of information and docs available, including an emulator for the chip.

That's impressive and awesome. Kudos, #Cakey.
I'm going to be poring over these documents, especially the 78k ISA.
A reimplementation of the important things in C or AVR ASM shouldn't be too hard, it's only 16k to work with.
I have a Teensy++2 which is itching to be put to use.

TheReturningVoid · May 5, 2016

sirocyl said:
That's impressive and awesome. Kudos, #Cakey.
I'm going to be poring over these documents, especially the 78k ISA.
A reimplementation of the important things in C or AVR ASM shouldn't be too hard, it's only 16k to work with.
I have a Teensy++2 which is itching to be put to use.

I also have an Arduino Uno that may be finding a use in the near future...

Plailect · May 5, 2016

sirocyl said:
That's impressive and awesome. Kudos, #Cakey.
I'm going to be poring over these documents, especially the 78k ISA.
A reimplementation of the important things in C or AVR ASM shouldn't be too hard, it's only 16k to work with.
I have a Teensy++2 which is itching to be put to use.

We also discovered that they offer a download for an ide with a built in simulator and decompiler for this family. The decompiler does not appear to accept foreign binaries, but perhaps it will give us some clues for reversing the MCU firmware.

dankzegriefer · May 5, 2016

tech3475 said:
Just an idea, but could glitching possibly be used, maybe try and bypass the lock code.

Now give us a glitch to use.

Oh, there is none. Because there will never be one.

astronautlevel · May 5, 2016

tech3475 said:
Just an idea, but could glitching possibly be used, maybe try and bypass the lock code.

>could glitching possibly be used

I don't even know what you mean by that.

Suiginou · May 5, 2016

astronautlevel said:
>could glitching possibly be used

I don't even know what you mean by that.

Cosmic rays.

astronautlevel · May 5, 2016

Suiginou said:
Cosmic rays.

Build a particle accelerator, point it at the 3ds, and hope it flips the right bit.

BurningDesire · May 5, 2016

astronautlevel said:
Build a particle accelerator, point it at the 3ds, and hope it flips the right bit.

What if it get's struck by lightning at the same time 0_0 will it be able to run faster then the speed of sound?

TheReturningVoid · May 5, 2016

astronautlevel said:
Build a particle accelerator, point it at Nintendo HQ, and hope it flips the right bits.

Ftfy

tech3475 · May 5, 2016

astronautlevel said:
>could glitching possibly be used

I don't even know what you mean by that.

I've heard about hacks being done by messing around with e.g. power connections, etc. to processors which can get them to behave in an odd way.

The Reset Glitch Hack on the 360 being an example.

As I said it was just an idea I was curious about.

Noroxus · May 5, 2016

TheReturningVoid said:
Ftfy

The only thing flipping at Nintendo HQ is going to be Miyamoto-samaaaaa

PLEASE UNDERSTAND

gudenau · May 5, 2016

Has anyone tried asking Nintendo for the bootroms?

8BitWonder · May 5, 2016

Suiginou said:
Grover's algorithm requires at least as many qubits as there are bits in the key. No quantum computers with 128 qubits have been built so far.

Next generation d-waves will have >= 1000 qubits.
http://www.dwavesys.com/press-releases/d-wave-systems-breaks-1000-qubit-quantum-computing-barrier

Edit: Turns out they already released it, they sport a 1152 qubit chip.

Deleted User · May 5, 2016

gudenaurock said:
Has anyone tried asking Nintendo for the bootroms?

I asked them very politely and they said no.

gudenau · May 5, 2016

Tomato Hentai said:
I asked them very politely and they said no.

Well, I could try later today.

Suiginou · May 5, 2016

8BitWonder said:
Next generation d-waves will have >= 1000 qubits.
http://www.dwavesys.com/press-releases/d-wave-systems-breaks-1000-qubit-quantum-computing-barrier

Edit: Turns out they already released it, they sport a 1152 qubit chip.

D-Waves aren't general-purpose QCs and, in particular, can neither run Shor's algorithm (irrelevant for this, but would mean instant death for the entire elliptic curve cryptosystem) nor Grover's algorithm.

8BitWonder · May 5, 2016

Suiginou said:
D-Waves aren't general-purpose QCs and, in particular, can neither run Shor's algorithm (irrelevant for this, but would mean instant death for the entire elliptic curve cryptosystem) nor Grover's algorithm.

My bad, guess I was looking more at qubits rather than if it was possible to use it for the mentioned purpose.

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