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Fix GW Launcher.dat bootup

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This is a workaround,, not a good solution
This commit is contained in:
d0k3 2016-04-14 11:28:08 +02:00
parent 897d254a4f
commit a52647aca0
1 changed files with 23 additions and 20 deletions
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43
source/nand/nand.c
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@ -125,28 +125,31 @@ bool InitNandCrypto(void)
// part #2: TWL KEY
// see: https://www.3dbrew.org/wiki/Memory_layout#ARM9_ITCM
u32* TwlCustId = (u32*) (0x01FFB808);
u8 TwlKeyX[16];
u8 TwlKeyY[16];
// thanks b1l1s & Normmatt
// see source from https://gbatemp.net/threads/release-twltool-dsi-downgrading-save-injection-etc-multitool.393488/
const char* nintendo = "NINTENDO";
u32* TwlKeyXW = (u32*) TwlKeyX;
TwlKeyXW[0] = (TwlCustId[0] ^ 0xB358A6AF) | 0x80000000;
TwlKeyXW[3] = TwlCustId[1] ^ 0x08C267B7;
memcpy(TwlKeyX + 4, nintendo, 8);
// see: https://www.3dbrew.org/wiki/Memory_layout#ARM9_ITCM
u32 TwlKeyYW3 = 0xE1A00005;
memcpy(TwlKeyY, (u8*) 0x01FFD3C8, 12);
memcpy(TwlKeyY + 12, &TwlKeyYW3, 4);
setup_aeskeyX(0x03, TwlKeyX);
setup_aeskeyY(0x03, TwlKeyY);
use_aeskey(0x03);
if ((*(vu32*) 0x101401C0) == 0) { // only for a9lh
u32* TwlCustId = (u32*) (0x01FFB808);
u8 TwlKeyX[16];
u8 TwlKeyY[16];
// thanks b1l1s & Normmatt
// see source from https://gbatemp.net/threads/release-twltool-dsi-downgrading-save-injection-etc-multitool.393488/
const char* nintendo = "NINTENDO";
u32* TwlKeyXW = (u32*) TwlKeyX;
TwlKeyXW[0] = (TwlCustId[0] ^ 0xB358A6AF) | 0x80000000;
TwlKeyXW[3] = TwlCustId[1] ^ 0x08C267B7;
memcpy(TwlKeyX + 4, nintendo, 8);
// see: https://www.3dbrew.org/wiki/Memory_layout#ARM9_ITCM
u32 TwlKeyYW3 = 0xE1A00005;
memcpy(TwlKeyY, (u8*) 0x01FFD3C8, 12);
memcpy(TwlKeyY + 12, &TwlKeyYW3, 4);
setup_aeskeyX(0x03, TwlKeyX);
setup_aeskeyY(0x03, TwlKeyY);
use_aeskey(0x03);
}
// part #3: CTRNAND N3DS KEY
// this could make sense for alternative entrypoints, so it's not a9lh exclusive
if (!LoadKeyFromFile("0:", slot0x05KeyY, 0x05, 'Y', NULL))
LoadKeyFromFile("0:/Decrypt9", slot0x05KeyY, 0x05, 'Y', NULL);