Reply to thread
GBAtemp.net - The Independent Video Game Community
Search
Search titles only
By:
Search titles only
By:
Reply to thread
GBAtemp.net - The Independent Video Game Community
Home
Log in
Terms & Rules
Donate
Forums
New posts
Search forums
Groups
Public Events
New
New posts
New resources
New blog entries
New profile posts
New blog entry comments
New threadmarks
Latest activity
Cheats
Cheat Codes Add and Request group
The Legend of Zelda: Tears of the Kingdom cheat codes
Pokémon Legends: Arceus cheat codes
Xenoblade Chronicles 3 cheat codes
Fire Emblem Engage cheat codes
Request a cheat...
Tutorials
Nintendo Switch tutorials
Nintendo 3DS tutorials
Nintendo Wii U tutorials
Reviews
Overview
Official reviews
User reviews
Downloads
Latest reviews
Search resources
Blogs
New entries
New comments
Blog list
Search blogs
Chat
Top chatters
Search
Search titles only
By:
Search titles only
By:
Log in
Register
New posts
Search forums
Log in
Register
Home
Forums
PC, Console & Handheld Discussions
Nintendo Switch
What's the challenge with the XCI loader?
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="_hexkyz_" data-source="post: 8324588" data-attributes="member: 466393"><p>Moral standpoints aside, no one will be able to replicate SX's XCI loading and distribute it as free open source software.</p><p>Not because of any technical hurdles or anything, but because it's flat out illegal.</p><p></p><p>TX reversed most of the gamecard protocol from the FS sysmodule and re-implemented it in their Loader KIP, hidden away inside a MIPS VM and a few layers of obfuscation. However, to achieve this, TX included sectors dumped from a real gamecard and the gamecard controller's certificate (which can be obtained by FS using a specific command). You can find these binaries by unpacking SX OS and searching inside the Loader KIP (simple hex editor will do) for "CERT" and "LOTUS".</p><p>Basically, any form of XCI loading requires heavily patching the FS sysmodule which can be quite a task if you want to support all firmware versions and what not. To avoid this, TX instead applies a single patch to FS which redirects gamecard commands to their MIPS VM. Then, code in their VM replies to the gamecard commands issued by FS with signed data ripped from a real gamecard.</p><p>After the authentication process has been forged, the VM is free to read data from the SD card and send it back to FS each time FS sends the gamecard sector reading command.</p><p></p><p>There are a few more details which I'm saving up for the writeup (SOON™), but that's the gist of it. A free solution will never be able to take this path for obvious reasons (instant takedown and lawsuits galore!), so a more complex approach will be necessary.</p></blockquote><p></p>
[QUOTE="_hexkyz_, post: 8324588, member: 466393"] Moral standpoints aside, no one will be able to replicate SX's XCI loading and distribute it as free open source software. Not because of any technical hurdles or anything, but because it's flat out illegal. TX reversed most of the gamecard protocol from the FS sysmodule and re-implemented it in their Loader KIP, hidden away inside a MIPS VM and a few layers of obfuscation. However, to achieve this, TX included sectors dumped from a real gamecard and the gamecard controller's certificate (which can be obtained by FS using a specific command). You can find these binaries by unpacking SX OS and searching inside the Loader KIP (simple hex editor will do) for "CERT" and "LOTUS". Basically, any form of XCI loading requires heavily patching the FS sysmodule which can be quite a task if you want to support all firmware versions and what not. To avoid this, TX instead applies a single patch to FS which redirects gamecard commands to their MIPS VM. Then, code in their VM replies to the gamecard commands issued by FS with signed data ripped from a real gamecard. After the authentication process has been forged, the VM is free to read data from the SD card and send it back to FS each time FS sends the gamecard sector reading command. There are a few more details which I'm saving up for the writeup (SOON™), but that's the gist of it. A free solution will never be able to take this path for obvious reasons (instant takedown and lawsuits galore!), so a more complex approach will be necessary. [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
PC, Console & Handheld Discussions
Nintendo Switch
What's the challenge with the XCI loader?
General chit-chat
Help
Users
Settings
Notifications
Miscellaneous
Inverse message direction
Display editor on top
Enable maximized mode
Display images as links
Hide bot messages
Hide statuses
Hide chatter list
Show messages from ignored users
Temporarily disable chat
Receive mention alerts
Sound notifications
Normal messages
Private messages
Whisper messages
Mention messages
Bot messages
Desktop notifications
Normal messages
Private messages
Whisper messages
Mention messages
Bot messages
Options
Options
View top chatters
No one is chatting at the moment.
@
SylverReZ
:
https://www.ign.com/articles/neon-genesis-evangelion-anime-studio-gainax-goes-bankrupt
Today at 2:36 AM
@
SylverReZ
:
https://www.youtube.com/watch?v=0eBJWoVPHUY
+3
Today at 2:36 AM
@
Psionic Roshambo
:
Lol
Today at 2:41 AM
@
Xdqwerty
:
Hi rez
Today at 2:42 AM
@
Psionic Roshambo
:
He about to get a tossed salad with his laundry lol
Today at 2:42 AM
@
Psionic Roshambo
:
https://m.youtube.com/watch?v=PhQsxcbo6gk&pp=ygUVaXAgbWFuIHZzIG1pa2UgdHlzb24g
Today at 2:43 AM
@
Psionic Roshambo
:
Pretty sure Mike would have won lol
Today at 2:43 AM
@
BigOnYa
:
Or bit off a ear at least
+1
Today at 2:45 AM
@
Psionic Roshambo
:
Lol
Today at 2:45 AM
@
Xdqwerty
:
@SylverReZ
, hi
Today at 2:46 AM
@
Psionic Roshambo
:
That little guy took a couple of hits that would have been more than just shaking it off
+1
Today at 2:47 AM
@
BigOnYa
:
And no way Tyson learned Japanese, he barely knows English
Today at 2:48 AM
@
K3Nv2
:
He only knows how to flop his dick around in short shorts
+1
Today at 2:49 AM
@
BigOnYa
:
That's why I had to stop wearing shorts in public.
+1
Today at 3:07 AM
@
Psionic Roshambo
:
https://youtu.be/tIhGFPf9zYs?si=PuxpV4XF-g3-8rJt
+1
Today at 3:23 AM
@
Xdqwerty
:
Good night
Today at 3:30 AM
@
BigOnYa
:
Nighty night, don't let the step brother bite
+1
Today at 3:31 AM
@
K3Nv2
:
I haven't really felt hungry all day could be these fiber pills
Today at 3:43 AM
@
ZeroT21
:
Not having any animal protein will have that effect on ya
Today at 3:59 AM
@
K3Nv2
:
If pills could make us full with all the probiotics we need would being a pill popper still be bad
Today at 4:06 AM
@
SylverReZ
:
@Xdqwerty
, Hi
Today at 4:39 AM
@
K3Nv2
:
https://www.tmz.com/2024/06/08/geor...ow-early-heckler-shade-eagle-mountain-casino/
Today at 4:47 AM
@
SylverReZ
:
https://www.foxnews.com/us/florida-man-allegedly-tells-police-mr-monopoly-goes-directly-jail
36 minutes ago
@
SylverReZ
:
35 minutes ago
@
SylverReZ
:
https://www.youtube.com/watch?v=DWb8Lb89dzg
1 minute ago
Submit
@
SylverReZ
:
https://www.youtube.com/watch?v=DWb8Lb89dzg
1 minute ago
Chat
0