mirror of
https://github.com/d0k3/GodMode9.git
synced 2025-06-26 21:52:48 +00:00
165 lines
7.2 KiB
C
165 lines
7.2 KiB
C
#include "ticket.h"
|
|
#include "aes.h"
|
|
#include "ff.h"
|
|
|
|
typedef struct {
|
|
u32 commonkey_idx;
|
|
u8 reserved[4];
|
|
u8 title_id[8];
|
|
u8 titlekey[16];
|
|
} __attribute__((packed)) TitleKeyEntry;
|
|
|
|
typedef struct {
|
|
u32 n_entries;
|
|
u8 reserved[12];
|
|
TitleKeyEntry entries[256]; // this number is only a placeholder
|
|
} __attribute__((packed)) TitleKeysInfo;
|
|
|
|
u32 ValidateTicket(Ticket* ticket) {
|
|
const u8 magic[] = { TICKET_SIG_TYPE };
|
|
if ((memcmp(ticket->sig_type, magic, sizeof(magic)) != 0) ||
|
|
((strncmp((char*) ticket->issuer, TICKET_ISSUER, 0x40) != 0) &&
|
|
(strncmp((char*) ticket->issuer, TICKET_ISSUER_DEV, 0x40) != 0)))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
u32 CryptTitleKey(TitleKeyEntry* tik, bool encrypt) {
|
|
// From https://github.com/profi200/Project_CTR/blob/master/makerom/pki/prod.h#L19
|
|
static const u8 common_keyy[6][16] __attribute__((aligned(16))) = {
|
|
{0xD0, 0x7B, 0x33, 0x7F, 0x9C, 0xA4, 0x38, 0x59, 0x32, 0xA2, 0xE2, 0x57, 0x23, 0x23, 0x2E, 0xB9} , // 0 - eShop Titles
|
|
{0x0C, 0x76, 0x72, 0x30, 0xF0, 0x99, 0x8F, 0x1C, 0x46, 0x82, 0x82, 0x02, 0xFA, 0xAC, 0xBE, 0x4C} , // 1 - System Titles
|
|
{0xC4, 0x75, 0xCB, 0x3A, 0xB8, 0xC7, 0x88, 0xBB, 0x57, 0x5E, 0x12, 0xA1, 0x09, 0x07, 0xB8, 0xA4} , // 2
|
|
{0xE4, 0x86, 0xEE, 0xE3, 0xD0, 0xC0, 0x9C, 0x90, 0x2F, 0x66, 0x86, 0xD4, 0xC0, 0x6F, 0x64, 0x9F} , // 3
|
|
{0xED, 0x31, 0xBA, 0x9C, 0x04, 0xB0, 0x67, 0x50, 0x6C, 0x44, 0x97, 0xA3, 0x5B, 0x78, 0x04, 0xFC} , // 4
|
|
{0x5E, 0x66, 0x99, 0x8A, 0xB4, 0xE8, 0x93, 0x16, 0x06, 0x85, 0x0F, 0xD7, 0xA1, 0x6D, 0xD7, 0x55} , // 5
|
|
};
|
|
// From https://github.com/profi200/Project_CTR/blob/master/makerom/pki/dev.h#L21
|
|
/* static const u8 common_key_devkit[6][16] __attribute__((aligned(16))) = { // unused atm!
|
|
{0x55, 0xA3, 0xF8, 0x72, 0xBD, 0xC8, 0x0C, 0x55, 0x5A, 0x65, 0x43, 0x81, 0x13, 0x9E, 0x15, 0x3B} , // 0 - eShop Titles
|
|
{0x44, 0x34, 0xED, 0x14, 0x82, 0x0C, 0xA1, 0xEB, 0xAB, 0x82, 0xC1, 0x6E, 0x7B, 0xEF, 0x0C, 0x25} , // 1 - System Titles
|
|
{0xF6, 0x2E, 0x3F, 0x95, 0x8E, 0x28, 0xA2, 0x1F, 0x28, 0x9E, 0xEC, 0x71, 0xA8, 0x66, 0x29, 0xDC} , // 2
|
|
{0x2B, 0x49, 0xCB, 0x6F, 0x99, 0x98, 0xD9, 0xAD, 0x94, 0xF2, 0xED, 0xE7, 0xB5, 0xDA, 0x3E, 0x27} , // 3
|
|
{0x75, 0x05, 0x52, 0xBF, 0xAA, 0x1C, 0x04, 0x07, 0x55, 0xC8, 0xD5, 0x9A, 0x55, 0xF9, 0xAD, 0x1F} , // 4
|
|
{0xAA, 0xDA, 0x4C, 0xA8, 0xF6, 0xE5, 0xA9, 0x77, 0xE0, 0xA0, 0xF9, 0xE4, 0x76, 0xCF, 0x0D, 0x63} , // 5
|
|
};*/
|
|
|
|
u32 mode = (encrypt) ? AES_CNT_TITLEKEY_ENCRYPT_MODE : AES_CNT_TITLEKEY_DECRYPT_MODE;
|
|
u8 ctr[16] = { 0 };
|
|
|
|
// setup key 0x3D // ctr
|
|
if (tik->commonkey_idx >= 6) return 1;
|
|
setup_aeskeyY(0x3D, (void*) common_keyy[tik->commonkey_idx]);
|
|
use_aeskey(0x3D);
|
|
memcpy(ctr, tik->title_id, 8);
|
|
set_ctr(ctr);
|
|
|
|
// decrypt / encrypt the titlekey
|
|
aes_decrypt(tik->titlekey, tik->titlekey, 1, mode);
|
|
return 0;
|
|
}
|
|
|
|
u32 GetTitleKey(u8* titlekey, Ticket* ticket) {
|
|
TitleKeyEntry tik = { 0 };
|
|
memcpy(tik.title_id, ticket->title_id, 8);
|
|
memcpy(tik.titlekey, ticket->titlekey, 16);
|
|
tik.commonkey_idx = ticket->commonkey_idx;
|
|
|
|
if (CryptTitleKey(&tik, false) != 0) return 0;
|
|
memcpy(titlekey, tik.titlekey, 16);
|
|
return 0;
|
|
}
|
|
|
|
u32 FindTicket(Ticket* ticket, u8* title_id, bool force_legit, bool emunand) {
|
|
const char* path_db = TICKDB_PATH(emunand); // EmuNAND / SysNAND
|
|
const u32 area_offsets[] = { TICKDB_AREA_OFFSETS };
|
|
u8 data[0x400];
|
|
FIL file;
|
|
UINT btr;
|
|
|
|
// parse file, sector by sector
|
|
if (f_open(&file, path_db, FA_READ | FA_OPEN_EXISTING) != FR_OK)
|
|
return 1;
|
|
bool found = false;
|
|
for (u32 p = 0; p < 2; p++) {
|
|
u32 area_offset = area_offsets[p];
|
|
for (u32 i = 0; !found && (i < TICKDB_AREA_SIZE); i += 0x200) {
|
|
Ticket* tick = (Ticket*) (data + 0x18);
|
|
f_lseek(&file, area_offset + i);
|
|
if ((f_read(&file, data, 0x400, &btr) != FR_OK) || (btr != 0x400)) break;
|
|
if ((getle32(data + 0x10) == 0) || (getle32(data + 0x14) != sizeof(Ticket))) continue;
|
|
if (ValidateTicket(tick) != 0) continue; // ticket not validated
|
|
if (memcmp(title_id, tick->title_id, 8) != 0) continue; // title id not matching
|
|
if (force_legit && (getbe64(tick->ticket_id) == 0)) continue; // legit check
|
|
memcpy(ticket, tick, sizeof(Ticket));
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
f_close(&file);
|
|
|
|
return (found) ? 0 : 1;
|
|
}
|
|
|
|
u32 FindTitleKey(Ticket* ticket, u8* title_id) {
|
|
bool found = false;
|
|
// search for a titlekey inside encTitleKeys.bin / decTitleKeys.bin
|
|
// when found, add it to the ticket
|
|
for (u32 enc = 0; (enc <= 1) && !found; enc++) {
|
|
const char* base[] = { INPUT_PATHS };
|
|
for (u32 i = 0; (i < (sizeof(base)/sizeof(char*))) && !found; i++) {
|
|
TitleKeysInfo* tikdb = (TitleKeysInfo*) (TEMP_BUFFER + (TEMP_BUFFER_SIZE/2));
|
|
char path[64];
|
|
FIL file;
|
|
UINT btr;
|
|
|
|
snprintf(path, 64, "%s/%s", base[i], (enc) ? TIKDB_NAME_ENC : TIKDB_NAME_DEC);
|
|
if (f_open(&file, path, FA_READ | FA_OPEN_EXISTING) != FR_OK)
|
|
continue;
|
|
f_read(&file, tikdb, TEMP_BUFFER_SIZE / 2, &btr);
|
|
f_close(&file);
|
|
if (tikdb->n_entries > (btr - 16) / 32)
|
|
continue; // filesize / titlekey db size mismatch
|
|
for (u32 t = 0; t < tikdb->n_entries; t++) {
|
|
TitleKeyEntry* tik = tikdb->entries + t;
|
|
if (memcmp(title_id, tik->title_id, 8) != 0)
|
|
continue;
|
|
if (!enc && (CryptTitleKey(tik, true) != 0)) // encrypt the key first
|
|
continue;
|
|
memcpy(ticket->titlekey, tik->titlekey, 16);
|
|
ticket->commonkey_idx = tik->commonkey_idx;
|
|
found = true; // found, inserted
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return (found) ? 0 : 1;
|
|
}
|
|
|
|
u32 BuildFakeTicket(Ticket* ticket, u8* title_id) {
|
|
const u8 sig_type[4] = { TICKET_SIG_TYPE }; // RSA_2048 SHA256
|
|
const u8 ticket_cnt_index[] = { // whatever this is
|
|
0x00, 0x01, 0x00, 0x14, 0x00, 0x00, 0x00, 0xAC, 0x00, 0x00, 0x00, 0x14, 0x00, 0x01, 0x00, 0x14,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x84,
|
|
0x00, 0x00, 0x00, 0x84, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
|
|
};
|
|
// set ticket all zero for a clean start
|
|
memset(ticket, 0x00, sizeof(Ticket));
|
|
// fill ticket values
|
|
memcpy(ticket->sig_type, sig_type, 4);
|
|
memset(ticket->signature, 0xFF, 0x100);
|
|
snprintf((char*) ticket->issuer, 0x40, TICKET_ISSUER);
|
|
memset(ticket->ecdsa, 0xFF, 0x3C);
|
|
ticket->version = 0x01;
|
|
memset(ticket->titlekey, 0xFF, 16);
|
|
memcpy(ticket->title_id, title_id, 8);
|
|
ticket->commonkey_idx = 0x00; // eshop
|
|
ticket->audit = 0x01; // whatever
|
|
memcpy(ticket->content_index, ticket_cnt_index, sizeof(ticket_cnt_index));
|
|
|
|
return 0;
|
|
}
|