DSiBrew - User contributions [en]

FAQ

2011-02-03T09:30:50Z

Link4u 94:

'''Frequently asked questions are here.'''

'''Q:''' What is the purpose of this project?

'''A:''' Getting unsigned "homebrew" code running on the Nintendo DSi in native DSi mode.

'''Q:''' Any progress?

'''A:''' The Dsi Common key has been found! Now we can decrypt Dsi specific code. And [[Team Twiizers]] has managed to execute some form of unsigned code by directing the save file area of a DSi-mode game to an Arudino chip. This will lead to further - and easier to replicate - exploits, such as [[Sudokuhax]].

'''Q:''' What is the purpose of running "homebrew" code on the Nintendo DSi?

'''A:''' The Nintendo DSi is a decently powerful system that has a SD slot, 2 cameras on it and a touch screen all in a portable system great for homebrew.

'''Q:''' Why not just rely on already available flash carts for homebrew?

'''A:''' The goal here is to run our own code via a software exploit, not a hardware one. Also, some flash carts have a bad reputation. Finally, current flash carts only allow you to run DS-native homebrew, with no DSi features (such as the cameras) or increased processing power being available. Also, SD Cards for the DSi are cheaper than flash carts.

'''Q:''' How can we know DSiware title code?

'''A:''' If you mean title IDs, see the title list. If you want to download DSiWare from NUS, you can't without the ticket which isn't available on NUS.

'''Q:''' What is FATFS? /PXI

'''A:''' PXI is the TWL SDK inter-processor communication system over the FIFO. FATFS is the TWL SDK Arm7 FAT interface for NAND, SD, etc.

FAQ

2011-02-03T09:30:02Z

Link4u 94:

'''Frequently asked questions are here.'''

'''Q:''' What is the purpose of this project?

'''A:''' Getting unsigned "homebrew" code running on the Nintendo DSi in native DSi mode.

'''Q:''' Any progress?

'''A:''' The Dsi Common key has been found! Now we can decrypt Dsi specific code. And [[Team Twiizers]] has managed to execute some form of unsigned code by directing the save file area of a DSi-mode game to an Arudino chip. This will lead to further - and easier to replicate - exploits, such as [[Sudohax]].

'''Q:''' What is the purpose of running "homebrew" code on the Nintendo DSi?

'''A:''' The Nintendo DSi is a decently powerful system that has a SD slot, 2 cameras on it and a touch screen all in a portable system great for homebrew.

'''Q:''' Why not just rely on already available flash carts for homebrew?

'''A:''' The goal here is to run our own code via a software exploit, not a hardware one. Also, some flash carts have a bad reputation. Finally, current flash carts only allow you to run DS-native homebrew, with no DSi features (such as the cameras) or increased processing power being available. Also, SD Cards for the DSi are cheaper than flash carts.

'''Q:''' How can we know DSiware title code?

'''A:''' If you mean title IDs, see the title list. If you want to download DSiWare from NUS, you can't without the ticket which isn't available on NUS.

'''Q:''' What is FATFS? /PXI

'''A:''' PXI is the TWL SDK inter-processor communication system over the FIFO. FATFS is the TWL SDK Arm7 FAT interface for NAND, SD, etc.

FAQ

2011-02-03T09:29:35Z

Link4u 94:

'''Frequently asked questions are here.'''

'''Q:''' What is the purpose of this project?

'''A:''' Getting unsigned "homebrew" code running on the Nintendo DSi in native DSi mode.

'''Q:''' Any progress?

'''A:''' The Dsi Common key has been found! Now we can decrypt Dsi specific code. And [[Team Twiizers]] has managed to execute some form of unsigned code by directing the save file area of a DSi-mode game to an Arudino chip. This will lead to further - and easier to replicate - exploits, such as Sudohax.

'''Q:''' What is the purpose of running "homebrew" code on the Nintendo DSi?

'''A:''' The Nintendo DSi is a decently powerful system that has a SD slot, 2 cameras on it and a touch screen all in a portable system great for homebrew.

'''Q:''' Why not just rely on already available flash carts for homebrew?

'''A:''' The goal here is to run our own code via a software exploit, not a hardware one. Also, some flash carts have a bad reputation. Finally, current flash carts only allow you to run DS-native homebrew, with no DSi features (such as the cameras) or increased processing power being available. Also, SD Cards for the DSi are cheaper than flash carts.

'''Q:''' How can we know DSiware title code?

'''A:''' If you mean title IDs, see the title list. If you want to download DSiWare from NUS, you can't without the ticket which isn't available on NUS.

'''Q:''' What is FATFS? /PXI

'''A:''' PXI is the TWL SDK inter-processor communication system over the FIFO. FATFS is the TWL SDK Arm7 FAT interface for NAND, SD, etc.

Common key

2011-02-03T09:13:05Z

Link4u 94: Dsi common key found!

The DSi's common key is a known encryption key (using the AES-CBC-128 algorithm). It is used to decrypt the title key in a ticket.

Loopy had substantially claimed to have found the common key, somewhere around 2009, but he didn't share it. He did, however, provide a small partially misleading amount of information on it. (There are no 00 bytes and the first bit is a 1.)

The common key can together with [http://wiibrew.org/wiki/NUS_Downloader NUSD] be used to decrypt dsi-wares (and everything that runs on the dsi for that matter, such as the dsi camera app, system settings etc.)

The common key is *not* in the RAM while either of the currently exploited games are running. The common key is not the same as (and not to be confused with) the Wii's.

Apparently, someone registered the common key as a .com domain the 16 of september 2009 with the following text:

"GTFO NAO, U CANNOT HAZ SITEZ.

DSI COMMON KEY HAS WAN USE. SIGNIN HOMEBREW 2 RUN ON DSI IZ NOT WAN OV THEM. NINTENDO DOESNT EPIC FAIL LIEK SONY IN DIS REGARD.

BTW, OH HAI THAR NINTENDO"

The Common key can be extracted from this program (for legal reasons):
[http://ifile.it/qlig148/dsikey%20generator.exe dsikeygenerator.exe]

Sources:
[http://www.elotrolado.net/hilo_dsi-common-key-revelada_1554262 Elotrolado.net, Spanish]
[http://www.ds-scene.net/?s=viewtopic&id=3366#9 Chat log]