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* Fix for HW crypto engine for neek2o mode

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This commit is contained in:
overjoy.psm 2013-11-10 23:08:59 +00:00
parent c8ccf82c24
commit 0fc723d824
3 changed files with 73 additions and 5 deletions
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23
source/libwbfs/wiidisc.c
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@ -5,6 +5,7 @@
#include "wiidisc.h"
#include "hw/aes.h"
#include "loader/nk.h"
int wd_last_error = 0;
@ -81,11 +82,19 @@ static void partition_read_block(wiidisc_t *d, u32 blockno, u8 *block)
offset = d->partition_data_offset + ((0x8000 >> 2) * blockno);
partition_raw_read(d,offset, raw, 0x8000);
// decrypt data
AES_ResetEngine();
memcpy(iv, raw + 0x3d0, 16);
AES_EnableDecrypt(d->disc_key, iv);
AES_Decrypt(raw + 0x400, block, 0x7c0);
// decrypt data
if(neek2o())
{
NKAESDecryptBlock(raw, block);
}
else
{
AES_ResetEngine();
AES_EnableDecrypt(d->disc_key, iv);
AES_Decrypt(raw + 0x400, block, 0x7c0);
}
}
static void partition_read(wiidisc_t *d, u32 offset, u8 *data, u32 len, int fake)
@ -245,7 +254,11 @@ static void do_partition(wiidisc_t*d)
wbfs_fatal("malloc cert\n");
partition_raw_read(d, cert_offset, cert, cert_size);
decrypt_title_key(tik, d->disc_key);
if(neek2o())
NKKeyCreate(tik);
else
decrypt_title_key(tik, d->disc_key);
partition_raw_read(d, h3_offset, 0, 0x18000);

53
source/loader/nk.c
View File

@ -34,6 +34,7 @@
#include "memory/mem2.hpp"
#include "gecko/gecko.hpp"
static u32 KeyID;
bool checked = false;
bool neek = false;
u32 kernelSize = 0;
@ -132,3 +133,55 @@ s32 Launch_nk(u64 TitleID, const char *nandpath, u64 ReturnTo)
MEM1_free(mini);
return 1;
}
void NKKeyCreate(u8 *tik)
{
u32 *TKeyID = (u32*)MEM1_memalign(32, sizeof(u32));
u8 *TitleID = (u8*)MEM1_memalign(32, 0x10);
u8 *EncTitleKey = (u8*)MEM1_memalign(32, 0x10);
memset(TitleID, 0, 0x10);
memset(EncTitleKey, 0, 0x10);
memcpy(TitleID, tik + 0x1DC, 8);
memcpy(EncTitleKey, tik + 0x1BF, 16);
static ioctlv v[3] ATTRIBUTE_ALIGN(32);
v[0].data = TitleID;
v[0].len = 0x10;
v[1].data = EncTitleKey;
v[1].len = 0x10;
v[2].data = TKeyID;
v[2].len = sizeof(u32);
s32 ESHandle = IOS_Open("/dev/es", 0);
IOS_Ioctlv(ESHandle, 0x50, 2, 1, (ioctlv *)v);
IOS_Close(ESHandle);
KeyID = *(u32*)(TKeyID);
MEM1_free(TKeyID);
MEM1_free(EncTitleKey);
MEM1_free(TitleID);
}
void NKAESDecryptBlock(u8 *in, u8 *out)
{
static ioctlv v[5] ATTRIBUTE_ALIGN(32);
v[0].data = &KeyID;
v[0].len = sizeof(u32);
v[1].data = in + 0x3d0;
v[1].len = 0x10;
v[2].data = in + 0x400;
v[2].len = 0x7c00;
v[3].data = 0;
v[3].len = 0;
v[4].data = out;
v[4].len = 0x7c00;
s32 ESHandle = IOS_Open("/dev/es", 0);
IOS_Ioctlv(ESHandle, 0x2D, 3, 2, (ioctlv *)v);
IOS_Close(ESHandle);
}

2
source/loader/nk.h
View File

@ -29,6 +29,8 @@ s32 Launch_nk(u64 TitleID, const char *nandpath, u64 ReturnTo);
bool Load_Neek2o_Kernel();
void check_neek2o(void);
bool neek2o(void);
void NKKeyCreate(u8 *TIK);
void NKAESDecryptBlock(u8 *in, u8 *out);
#ifdef __cplusplus
}