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Handle titlekeys in devkit tickets

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This commit is contained in:
d0k3 2017-02-10 20:28:18 +01:00
parent c93295df42
commit f5694cc16d
2 changed files with 9 additions and 6 deletions
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13
source/game/ticket.c
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@ -25,7 +25,7 @@ u32 ValidateTicket(Ticket* ticket) {
return 0;
}
u32 CryptTitleKey(TitleKeyEntry* tik, bool encrypt) {
u32 CryptTitleKey(TitleKeyEntry* tik, bool encrypt, bool devkit) {
// 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
@ -36,21 +36,22 @@ u32 CryptTitleKey(TitleKeyEntry* tik, bool encrypt) {
{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!
static const u8 common_key_devkit[6][16] __attribute__((aligned(16))) = {
{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]);
if (!devkit) setup_aeskeyY(0x3D, (void*) common_keyy[tik->commonkey_idx]);
else setup_aeskey(0x3D, (void*) common_key_devkit[tik->commonkey_idx]);
use_aeskey(0x3D);
memcpy(ctr, tik->title_id, 8);
set_ctr(ctr);
@ -66,7 +67,7 @@ u32 GetTitleKey(u8* titlekey, Ticket* ticket) {
memcpy(tik.titlekey, ticket->titlekey, 16);
tik.commonkey_idx = ticket->commonkey_idx;
if (CryptTitleKey(&tik, false) != 0) return 1;
if (CryptTitleKey(&tik, false, TICKET_DEVKIT(ticket)) != 0) return 1;
memcpy(titlekey, tik.titlekey, 16);
return 0;
}
@ -125,7 +126,7 @@ u32 FindTitleKey(Ticket* ticket, u8* title_id) {
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
if (!enc && (CryptTitleKey(tik, true, TICKET_DEVKIT(ticket)) != 0)) // encrypt the key first
continue;
memcpy(ticket->titlekey, tik->titlekey, 16);
ticket->commonkey_idx = tik->commonkey_idx;

2
source/game/ticket.h
View File

@ -9,6 +9,8 @@
#define TICKET_ISSUER_DEV "Root-CA00000004-XS00000009"
#define TICKET_SIG_TYPE 0x00, 0x01, 0x00, 0x04 // RSA_2048 SHA256
#define TICKET_DEVKIT(tick) (strncmp((char*)tick->issuer, TICKET_ISSUER_DEV, 0x40) == 0)
#define TIKDB_NAME_ENC "encTitleKeys.bin"
#define TIKDB_NAME_DEC "decTitleKeys.bin"