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Enable building NUS/CDN certs for TMD & Ticket

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This commit is contained in:
d0k3 2017-02-06 03:16:35 +01:00
parent 4082b4fa00
commit 306f7773ac
5 changed files with 63 additions and 1 deletions
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2
source/game/gameutil.c
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@ -440,7 +440,7 @@ u32 VerifyTmdFile(const char* path, bool cdn) {
TitleMetaData* tmd = (TitleMetaData*) TEMP_BUFFER;
TmdContentChunk* content_list = (TmdContentChunk*) (tmd + 1);
Ticket* ticket = (Ticket*) (TEMP_BUFFER + TMD_SIZE_MAX);
u8 titlekey[0x10];
u8 titlekey[0x10] = { 0xFF };
// path string
char pathstr[32 + 1];

30
source/game/ticket.c
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@ -1,5 +1,6 @@
#include "ticket.h"
#include "aes.h"
#include "sha.h"
#include "ff.h"
typedef struct {
@ -162,3 +163,32 @@ u32 BuildFakeTicket(Ticket* ticket, u8* title_id) {
return 0;
}
u32 BuildTicketCert(u8* tickcert) {
const u8 cert_hash_expected[0x20] = {
0xDC, 0x15, 0x3C, 0x2B, 0x8A, 0x0A, 0xC8, 0x74, 0xA9, 0xDC, 0x78, 0x61, 0x0E, 0x6A, 0x8F, 0xE3,
0xE6, 0xB1, 0x34, 0xD5, 0x52, 0x88, 0x73, 0xC9, 0x61, 0xFB, 0xC7, 0x95, 0xCB, 0x47, 0xE6, 0x97
};
// open certs.db file on SysNAND
FIL db;
UINT bytes_read;
if (f_open(&db, "1:/dbs/certs.db", FA_READ | FA_OPEN_EXISTING) != FR_OK)
return 1;
// grab Ticket cert from 3 offsets
f_lseek(&db, 0x3F10);
f_read(&db, tickcert + 0x000, 0x300, &bytes_read);
f_lseek(&db, 0x0C10);
f_read(&db, tickcert + 0x300, 0x1F0, &bytes_read);
f_lseek(&db, 0x3A00);
f_read(&db, tickcert + 0x4F0, 0x210, &bytes_read);
f_close(&db);
// check the certificate hash
u8 cert_hash[0x20];
sha_quick(cert_hash, tickcert, TICKET_CDNCERT_SIZE, SHA256_MODE);
if (memcmp(cert_hash, cert_hash_expected, 0x20) != 0)
return 1;
return 0;
}

1
source/game/ticket.h
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@ -59,3 +59,4 @@ u32 GetTitleKey(u8* titlekey, Ticket* ticket);
u32 FindTicket(Ticket* ticket, u8* title_id, bool force_legit, bool emunand);
u32 FindTitleKey(Ticket* ticket, u8* title_id);
u32 BuildFakeTicket(Ticket* ticket, u8* title_id);
u32 BuildTicketCert(u8* tickcert);

30
source/game/tmd.c
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@ -1,5 +1,6 @@
#include "tmd.h"
#include "sha.h"
#include "ff.h"
u32 GetTmdCtr(u8* ctr, TmdContentChunk* chunk) {
memset(ctr, 0, 16);
@ -43,3 +44,32 @@ u32 BuildFakeTmd(TitleMetaData* tmd, u8* title_id, u32 n_contents, u32 save_size
return 0;
}
u32 BuildTmdCert(u8* tmdcert) {
const u8 cert_hash_expected[0x20] = {
0x91, 0x5F, 0x77, 0x3A, 0x07, 0x82, 0xD4, 0x27, 0xC4, 0xCE, 0xF5, 0x49, 0x25, 0x33, 0xE8, 0xEC,
0xF6, 0xFE, 0xA1, 0xEB, 0x8C, 0xCF, 0x59, 0x6E, 0x69, 0xBA, 0x2A, 0x38, 0x8D, 0x73, 0x8A, 0xE1
};
// open certs.db file on SysNAND
FIL db;
UINT bytes_read;
if (f_open(&db, "1:/dbs/certs.db", FA_READ | FA_OPEN_EXISTING) != FR_OK)
return 1;
// grab TMD cert from 3 offsets
f_lseek(&db, 0x3C10);
f_read(&db, tmdcert + 0x000, 0x300, &bytes_read);
f_lseek(&db, 0x0C10);
f_read(&db, tmdcert + 0x300, 0x1F0, &bytes_read);
f_lseek(&db, 0x3A00);
f_read(&db, tmdcert + 0x4F0, 0x210, &bytes_read);
f_close(&db);
// check the certificate hash
u8 cert_hash[0x20];
sha_quick(cert_hash, tmdcert, TMD_CDNCERT_SIZE, SHA256_MODE);
if (memcmp(cert_hash, cert_hash_expected, 0x20) != 0)
return 1;
return 0;
}

1
source/game/tmd.h
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@ -59,3 +59,4 @@ typedef struct {
u32 GetTmdCtr(u8* ctr, TmdContentChunk* chunk);
u32 FixTmdHashes(TitleMetaData* tmd);
u32 BuildFakeTmd(TitleMetaData* tmd, u8* title_id, u32 n_contents, u32 save_size);
u32 BuildTmdCert(u8* tmdcert);