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Lockpick_RCM/source/keys/keys.c

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/*
* Copyright (c) 2019-2020 shchmue
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "keys.h"
#include "../config.h"
#include <gfx/di.h>
#include <gfx_utils.h>
#include "../gfx/tui.h"
#include "../hos/hos.h"
#include "../hos/pkg1.h"
#include "../hos/pkg2.h"
#include "../hos/sept.h"
#include <libs/fatfs/ff.h>
#include <libs/nx_savedata/save.h>
#include <mem/heap.h>
#include <mem/mc.h>
#include <mem/minerva.h>
#include <mem/sdram.h>
#include <sec/se.h>
#include <sec/se_t210.h>
#include <sec/tsec.h>
#include <soc/fuse.h>
#include <mem/smmu.h>
#include <soc/t210.h>
#include "../storage/emummc.h"
#include "../storage/nx_emmc.h"
#include "../storage/nx_emmc_bis.h"
#include <storage/nx_sd.h>
#include <storage/sdmmc.h>
#include <utils/btn.h>
#include <utils/list.h>
#include <utils/sprintf.h>
#include <utils/util.h>
#include "key_sources.inl"
#include <string.h>
extern hekate_config h_cfg;
static u32 _key_count = 0, _titlekey_count = 0;
static u32 start_time, end_time;
u32 color_idx = 0;
#define TPRINTF(text) \
end_time = get_tmr_us(); \
gfx_printf(text" done in %d us\n", end_time - start_time); \
start_time = get_tmr_us(); \
minerva_periodic_training()
#define TPRINTFARGS(text, args...) \
end_time = get_tmr_us(); \
gfx_printf(text" done in %d us\n", args, end_time - start_time); \
start_time = get_tmr_us(); \
minerva_periodic_training()
#define SAVE_KEY(name, src, len) _save_key(name, src, len, text_buffer)
#define SAVE_KEY_FAMILY(name, src, start, count, len) _save_key_family(name, src, start, count, len, text_buffer)
static inline u32 _read_le_u32(const void *buffer, u32 offset) {
return (*(u8*)(buffer + offset + 0) ) |
(*(u8*)(buffer + offset + 1) << 0x08) |
(*(u8*)(buffer + offset + 2) << 0x10) |
(*(u8*)(buffer + offset + 3) << 0x18);
}
// key functions
static int _key_exists(const void *data) { return memcmp(data, zeros, 0x10) != 0; };
static void _save_key(const char *name, const void *data, u32 len, char *outbuf);
static void _save_key_family(const char *name, const void *data, u32 start_key, u32 num_keys, u32 len, char *outbuf);
static void _generate_kek(u32 ks, const void *key_source, void *master_key, const void *kek_seed, const void *key_seed);
static void _get_device_key(u32 ks, void *out_device_key, u32 revision, const void *device_key, const void *master_key);
// titlekey functions
static bool _test_key_pair(const void *E, const void *D, const void *N);
static void _mgf1_xor(void *masked, u32 masked_size, const void *seed, u32 seed_size);
static inline u8 *_find_tsec_fw(const u8 *pkg1) {
const u32 tsec_fw_align = 0x100;
const u32 tsec_fw_first_instruction = 0xCF42004D;
for (const u32 *pos = (const u32 *)pkg1; (u8 *)pos < pkg1 + PKG1_MAX_SIZE; pos += tsec_fw_align / sizeof(u32))
if (*pos == tsec_fw_first_instruction)
return (u8 *)pos;
return NULL;
}
static inline u32 _get_tsec_fw_size(tsec_key_data_t *key_data) {
return key_data->blob0_size + sizeof(tsec_key_data_t) + key_data->blob1_size + key_data->blob2_size + key_data->blob3_size + key_data->blob4_size;
}
#define RELOC_META_OFF 0x7C
void dump_keys() {
u8 temp_key[0x10],
bis_key[4][0x20] = {0},
device_key[0x10] = {0},
device_key_4x[0x10] = {0},
sd_seed[0x10] = {0},
// FS-related keys
header_key[0x20] = {0},
save_mac_key[0x10] = {0},
// other sysmodule keys
eticket_rsa_kek[0x10] = {0},
eticket_rsa_kek_personalized[0x10] = {0},
ssl_rsa_kek[0x10] = {0},
// keyblob-derived families
keyblob[KB_FIRMWARE_VERSION_600+1][0x90] = {0},
keyblob_key[KB_FIRMWARE_VERSION_600+1][0x10] = {0},
keyblob_mac_key[KB_FIRMWARE_VERSION_600+1][0x10] = {0},
package1_key[KB_FIRMWARE_VERSION_600+1][0x10] = {0},
// master key-derived families
key_area_key[3][KB_FIRMWARE_VERSION_MAX+1][0x10] = {0},
master_kek[KB_FIRMWARE_VERSION_MAX+1][0x10] = {0},
master_key[KB_FIRMWARE_VERSION_MAX+1][0x10] = {0},
package2_key[KB_FIRMWARE_VERSION_MAX+1][0x10] = {0},
titlekek[KB_FIRMWARE_VERSION_MAX+1][0x10] = {0};
sd_mount();
display_backlight_brightness(h_cfg.backlight, 1000);
gfx_clear_grey(0x1B);
gfx_con_setpos(0, 0);
gfx_printf("[%kLo%kck%kpi%kck%k_R%kCM%k v%d.%d.%d%k]\n\n",
colors[0], colors[1], colors[2], colors[3], colors[4], colors[5], 0xFFFF00FF, LP_VER_MJ, LP_VER_MN, LP_VER_BF, 0xFFCCCCCC);
_key_count = 0;
_titlekey_count = 0;
color_idx = 0;
start_time = get_tmr_us();
u32 begin_time = get_tmr_us();
u32 retries = 0;
tsec_ctxt_t tsec_ctxt;
sdmmc_t sdmmc;
if (emummc_storage_init_mmc(&emmc_storage, &sdmmc)) {
EPRINTF("Unable to init MMC.");
goto out_wait;
}
TPRINTFARGS("%kMMC init... ", colors[(color_idx++) % 6]);
// Read package1.
u8 *pkg1 = (u8 *)malloc(PKG1_MAX_SIZE);
if (!emummc_storage_set_mmc_partition(&emmc_storage, EMMC_BOOT0)) {
EPRINTF("Unable to set partition.");
goto out_wait;
}
if (!emummc_storage_read(&emmc_storage, PKG1_OFFSET / NX_EMMC_BLOCKSIZE, PKG1_MAX_SIZE / NX_EMMC_BLOCKSIZE, pkg1)) {
EPRINTF("Unable to read pkg1.");
goto out_wait;
}
const pkg1_id_t *pkg1_id = pkg1_identify(pkg1);
if (!pkg1_id) {
EPRINTF("Unknown pkg1 version.\n Make sure you have the latest Lockpick_RCM.\n If a new firmware version just came out,\n Lockpick_RCM must be updated.\n Check Github for new release.");
goto out_wait;
}
tsec_ctxt.fw = _find_tsec_fw(pkg1);
if (!tsec_ctxt.fw) {
EPRINTF("Unable to locate TSEC firmware.");
goto out_wait;
}
minerva_periodic_training();
tsec_ctxt.pkg1 = pkg1;
tsec_ctxt.size = _get_tsec_fw_size((tsec_key_data_t *)(tsec_ctxt.fw + TSEC_KEY_DATA_OFFSET));
if (tsec_ctxt.size > PKG1_MAX_SIZE) {
EPRINTF("Unexpected TSEC firmware size.");
goto out_wait;
}
u32 derivable_key_count = pkg1_id->kb >= KB_FIRMWARE_VERSION_620 ? pkg1_id->kb + 1 : 6;
if (pkg1_id->kb >= KB_FIRMWARE_VERSION_700) {
sd_mount();
if (!f_stat("sd:/sept/payload.bak", NULL)) {
if (f_unlink("sd:/sept/payload.bin"))
gfx_printf("%kNote: no payload.bin already in /sept\n", colors[(color_idx++) % 6]);
f_rename("sd:/sept/payload.bak", "sd:/sept/payload.bin");
}
if (!h_cfg.sept_run) {
// bundle lp0 fw for sept instead of loading it from SD as hekate does
sdram_lp0_save_params(sdram_get_params_patched());
FIL fp;
if (f_stat("sd:/sept", NULL)) {
EPRINTF("On firmware 7.x+ but Sept missing.\nSkipping new key derivation...");
goto get_tsec;
}
// backup post-reboot payload
if (!f_stat("sd:/sept/payload.bin", NULL)) {
if (f_rename("sd:/sept/payload.bin", "sd:/sept/payload.bak")) {
EPRINTF("Unable to backup payload.bin.");
goto out_wait;
}
}
// write self to payload.bin to run again when sept finishes
volatile reloc_meta_t *relocator = (reloc_meta_t *)(IPL_LOAD_ADDR + RELOC_META_OFF);
u32 payload_size = relocator->end - IPL_LOAD_ADDR;
if (f_open(&fp, "sd:/sept/payload.bin", FA_CREATE_NEW | FA_WRITE)) {
EPRINTF("Unable to open /sept/payload.bin to write.");
goto out_wait;
}
gfx_printf("%kWrite self to /sept/payload.bin...", colors[(color_idx++) % 6]);
if (f_write(&fp, (u8 *)IPL_LOAD_ADDR, payload_size, NULL)) {
EPRINTF("Unable to write self to /sept/payload.bin.");
f_close(&fp);
goto out_wait;
}
gfx_printf(" done");
f_close(&fp);
gfx_printf("%k\nFirmware 7.x or higher detected.\n\n", colors[(color_idx++) % 6]);
gfx_printf("%kRenamed /sept/payload.bin", colors[(color_idx++) % 6]);
gfx_printf("\n to /sept/payload.bak\n\n");
gfx_printf("%kCopied self to /sept/payload.bin\n", colors[(color_idx++) % 6]);
sdmmc_storage_end(&emmc_storage);
if (!reboot_to_sept((u8 *)tsec_ctxt.fw, tsec_ctxt.size, pkg1_id->kb))
goto out_wait;
} else {
se_aes_key_read(se_key_acc_ctrl_get(12) == 0x6A ? 13 : 12, master_key[KB_FIRMWARE_VERSION_MAX], 0x10);
}
}
get_tsec: ;
u8 tsec_keys[0x10 * 2] = {0};
if (pkg1_id->kb == KB_FIRMWARE_VERSION_620) {
u8 *tsec_paged = (u8 *)page_alloc(3);
memcpy(tsec_paged, (void *)tsec_ctxt.fw, tsec_ctxt.size);
tsec_ctxt.fw = tsec_paged;
}
int res = 0;
mc_disable_ahb_redirect();
while (tsec_query(tsec_keys, pkg1_id->kb, &tsec_ctxt) < 0) {
memset(tsec_keys, 0x00, 0x20);
retries++;
if (retries > 15) {
res = -1;
break;
}
}
free(pkg1);
mc_enable_ahb_redirect();
if (res < 0) {
EPRINTFARGS("ERROR %x dumping TSEC.\n", res);
goto out_wait;
}
TPRINTFARGS("%kTSEC key(s)... ", colors[(color_idx++) % 6]);
// Master key derivation
// on firmware 6.2.0 only, tsec_query delivers the tsec_root_key
if (pkg1_id->kb == KB_FIRMWARE_VERSION_620 && _key_exists(tsec_keys + 0x10)) {
se_aes_key_set(8, tsec_keys + 0x10, 0x10); // mkek6 = unwrap(mkeks6, tsecroot)
se_aes_crypt_block_ecb(8, 0, master_kek[6], master_kek_sources[0]);
se_aes_key_set(8, master_kek[6], 0x10); // mkey = unwrap(mkek, mks)
se_aes_crypt_block_ecb(8, 0, master_key[6], master_key_source);
}
if (pkg1_id->kb >= KB_FIRMWARE_VERSION_620) {
// derive all lower master keys in case keyblobs are bad
if (_key_exists(master_key[pkg1_id->kb])) {
for (u32 i = pkg1_id->kb; i > 0; i--) {
se_aes_key_set(8, master_key[i], 0x10);
se_aes_crypt_block_ecb(8, 0, master_key[i-1], master_key_vectors[i]);
}
se_aes_key_set(8, master_key[0], 0x10);
se_aes_crypt_block_ecb(8, 0, temp_key, master_key_vectors[0]);
if (_key_exists(temp_key)) {
EPRINTFARGS("Unable to derive master key. kb = %d.\n Put current sept files on SD and retry.", pkg1_id->kb);
memset(master_key, 0, sizeof(master_key));
}
} else if (_key_exists(master_key[KB_FIRMWARE_VERSION_MAX])) {
// handle sept version differences
for (u32 kb = KB_FIRMWARE_VERSION_MAX; kb >= KB_FIRMWARE_VERSION_620; kb--) {
for (u32 i = kb; i > 0; i--) {
se_aes_key_set(8, master_key[i], 0x10);
se_aes_crypt_block_ecb(8, 0, master_key[i-1], master_key_vectors[i]);
}
se_aes_key_set(8, master_key[0], 0x10);
se_aes_crypt_block_ecb(8, 0, temp_key, master_key_vectors[0]);
if (!_key_exists(temp_key)) {
break;
}
memcpy(master_key[kb-1], master_key[kb], 0x10);
memset(master_key[kb], 0, 0x10);
}
if (_key_exists(temp_key)) {
EPRINTF("Unable to derive master keys via sept.");
memset(master_key, 0, sizeof(master_key));
}
}
}
u8 *keyblob_block = (u8 *)calloc(KB_FIRMWARE_VERSION_600 + 1, NX_EMMC_BLOCKSIZE);
u8 *current_keyblob = keyblob_block;
u8 keyblob_mac[0x10] = {0};
u32 sbk[4] = {FUSE(FUSE_PRIVATE_KEY0), FUSE(FUSE_PRIVATE_KEY1),
FUSE(FUSE_PRIVATE_KEY2), FUSE(FUSE_PRIVATE_KEY3)};
se_aes_key_set(8, tsec_keys, 0x10);
se_aes_key_set(9, sbk, 0x10);
if (!emummc_storage_read(&emmc_storage, KEYBLOB_OFFSET / NX_EMMC_BLOCKSIZE, KB_FIRMWARE_VERSION_600 + 1, keyblob_block)) {
EPRINTF("Unable to read keyblob.");
}
for (u32 i = 0; i <= KB_FIRMWARE_VERSION_600; i++, current_keyblob += NX_EMMC_BLOCKSIZE) {
minerva_periodic_training();
se_aes_crypt_block_ecb(8, 0, keyblob_key[i], keyblob_key_source[i]); // temp = unwrap(kbks, tsec)
se_aes_crypt_block_ecb(9, 0, keyblob_key[i], keyblob_key[i]); // kbk = unwrap(temp, sbk)
se_aes_key_set(7, keyblob_key[i], 0x10);
se_aes_crypt_block_ecb(7, 0, keyblob_mac_key[i], keyblob_mac_key_source); // kbm = unwrap(kbms, kbk)
if (i == 0) {
se_aes_crypt_block_ecb(7, 0, device_key, per_console_key_source); // devkey = unwrap(pcks, kbk0)
se_aes_crypt_block_ecb(7, 0, device_key_4x, device_master_key_source_kek_source);
}
// verify keyblob is not corrupt
se_aes_key_set(10, keyblob_mac_key[i], 0x10);
se_aes_cmac(10, keyblob_mac, 0x10, current_keyblob + 0x10, 0xa0);
if (memcmp(current_keyblob, keyblob_mac, 0x10) != 0) {
EPRINTFARGS("Keyblob %x corrupt.", i);
gfx_hexdump(i, current_keyblob, 0x10);
gfx_hexdump(i, keyblob_mac, 0x10);
continue;
}
// decrypt keyblobs
se_aes_key_set(6, keyblob_key[i], 0x10);
se_aes_crypt_ctr(6, keyblob[i], 0x90, current_keyblob + 0x20, 0x90, current_keyblob + 0x10);
memcpy(package1_key[i], keyblob[i] + 0x80, 0x10);
memcpy(master_kek[i], keyblob[i], 0x10);
se_aes_key_set(7, master_kek[i], 0x10);
se_aes_crypt_block_ecb(7, 0, master_key[i], master_key_source);
}
free(keyblob_block);
TPRINTFARGS("%kMaster keys... ", colors[(color_idx++) % 6]);
/* key = unwrap(source, wrapped_key):
key_set(ks, wrapped_key), block_ecb(ks, 0, key, source) -> final key in key
*/
minerva_periodic_training();
u32 key_generation = fuse_read_odm_keygen_rev();
if (key_generation)
key_generation--;
if (_key_exists(device_key)) {
if (key_generation) {
_get_device_key(8, temp_key, key_generation, device_key_4x, master_key[0]);
} else
memcpy(temp_key, device_key, 0x10);
se_aes_key_set(8, temp_key, 0x10);
se_aes_unwrap_key(8, 8, retail_specific_aes_key_source); // kek = unwrap(rsaks, devkey)
se_aes_crypt_block_ecb(8, 0, bis_key[0] + 0x00, bis_key_source[0] + 0x00); // bkey = unwrap(bkeys, kek)
se_aes_crypt_block_ecb(8, 0, bis_key[0] + 0x10, bis_key_source[0] + 0x10);
// kek = generate_kek(bkeks, devkey, aeskek, aeskey)
_generate_kek(8, bis_kek_source, temp_key, aes_kek_generation_source, aes_key_generation_source);
se_aes_crypt_block_ecb(8, 0, bis_key[1] + 0x00, bis_key_source[1] + 0x00); // bkey = unwrap(bkeys, kek)
se_aes_crypt_block_ecb(8, 0, bis_key[1] + 0x10, bis_key_source[1] + 0x10);
se_aes_crypt_block_ecb(8, 0, bis_key[2] + 0x00, bis_key_source[2] + 0x00);
se_aes_crypt_block_ecb(8, 0, bis_key[2] + 0x10, bis_key_source[2] + 0x10);
memcpy(bis_key[3], bis_key[2], 0x20);
}
u8 *rights_ids = NULL, *titlekeys = NULL;
TPRINTFARGS("%kFS keys... ", colors[(color_idx++) % 6]);
if (_key_exists(fs_keys[FS_HEADER_KEK_SOURCE]) && _key_exists(fs_keys[FS_HEADER_KEY_SOURCE]) && _key_exists(master_key[0])) {
_generate_kek(8, fs_keys[FS_HEADER_KEK_SOURCE], master_key[0], aes_kek_generation_source, aes_key_generation_source);
se_aes_crypt_block_ecb(8, 0, header_key + 0x00, fs_keys[FS_HEADER_KEY_SOURCE] + 0x00);
se_aes_crypt_block_ecb(8, 0, header_key + 0x10, fs_keys[FS_HEADER_KEY_SOURCE] + 0x10);
}
if (_key_exists(fs_keys[FS_SAVE_MAC_KEK_SOURCE]) && _key_exists(fs_keys[FS_SAVE_MAC_KEY_SOURCE]) && _key_exists(device_key)) {
_generate_kek(8, fs_keys[FS_SAVE_MAC_KEK_SOURCE], device_key, aes_kek_generation_source, NULL);
se_aes_crypt_block_ecb(8, 0, save_mac_key, fs_keys[FS_SAVE_MAC_KEY_SOURCE]);
}
if (_key_exists(master_key[derivable_key_count])) {
derivable_key_count = KB_FIRMWARE_VERSION_MAX + 1;
}
for (u32 i = 0; i < derivable_key_count; i++) {
if (!_key_exists(master_key[i]))
continue;
if (_key_exists(fs_keys[FS_KEY_AREA_KEY_APPLI_SOURCE]) && _key_exists(fs_keys[FS_KEY_AREA_KEY_OCEAN_SOURCE]) && _key_exists(fs_keys[FS_KEY_AREA_KEY_SYSTE_SOURCE])) {
for (u32 j = 0; j < 3; j++) {
_generate_kek(8, fs_keys[FS_KEY_AREA_KEY_APPLI_SOURCE + j], master_key[i], aes_kek_generation_source, NULL);
se_aes_crypt_block_ecb(8, 0, key_area_key[j][i], aes_key_generation_source);
}
}
se_aes_key_set(8, master_key[i], 0x10);
se_aes_crypt_block_ecb(8, 0, package2_key[i], package2_key_source);
se_aes_crypt_block_ecb(8, 0, titlekek[i], titlekek_source);
}
if (!_key_exists(header_key) || !_key_exists(bis_key[2]))
{
EPRINTF("Missing FS keys. Skipping ES/SSL keys.");
goto key_output;
}
FILINFO fno;
FIL fp;
save_ctx_t *save_ctx = NULL;
bool save_process_success = false;
u32 read_bytes = 0;
// derive eticket_rsa_kek and ssl_rsa_kek
if (_key_exists(master_key[0])) {
for (u32 i = 0; i < 0x10; i++)
temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_03[i];
_generate_kek(7, es_keys[1], master_key[0], temp_key, NULL);
se_aes_crypt_block_ecb(7, 0, eticket_rsa_kek, es_keys[0]);
for (u32 i = 0; i < 0x10; i++)
temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_01[i];
_generate_kek(7, es_keys[2], master_key[0], temp_key, NULL);
se_aes_crypt_block_ecb(7, 0, ssl_rsa_kek, ssl_keys);
}
// Set BIS keys.
// PRODINFO/PRODINFOF
se_aes_key_set(0, bis_key[0] + 0x00, 0x10);
se_aes_key_set(1, bis_key[0] + 0x10, 0x10);
// SAFE
se_aes_key_set(2, bis_key[1] + 0x00, 0x10);
se_aes_key_set(3, bis_key[1] + 0x10, 0x10);
// SYSTEM/USER
se_aes_key_set(4, bis_key[2] + 0x00, 0x10);
se_aes_key_set(5, bis_key[2] + 0x10, 0x10);
// Set header key for NCA decryption.
se_aes_key_set(8, header_key + 0x00, 0x10);
se_aes_key_set(9, header_key + 0x10, 0x10);
if (!emummc_storage_set_mmc_partition(&emmc_storage, EMMC_GPP)) {
EPRINTF("Unable to set partition.");
goto out_wait;
}
// Parse eMMC GPT.
LIST_INIT(gpt);
nx_emmc_gpt_parse(&gpt, &emmc_storage);
emmc_part_t *system_part = nx_emmc_part_find(&gpt, "SYSTEM");
if (!system_part) {
EPRINTF("Unable to locate System partition.");
goto key_output;
}
nx_emmc_bis_init(system_part);
if (f_mount(&emmc_fs, "bis:", 1)) {
EPRINTF("Unable to mount system partition.");
goto key_output;
}
char private_path[200] = "sd:/";
if (emu_cfg.nintendo_path && (emu_cfg.enabled || !h_cfg.emummc_force_disable)) {
strcat(private_path, emu_cfg.nintendo_path);
} else {
strcat(private_path, "Nintendo");
}
strcat(private_path, "/Contents/private");
if (f_open(&fp, private_path, FA_READ | FA_OPEN_EXISTING)) {
EPRINTF("Unable to open SD seed vector. Skipping.");
goto get_titlekeys;
}
// get sd seed verification vector
if (f_read(&fp, temp_key, 0x10, &read_bytes) || read_bytes != 0x10) {
EPRINTF("Unable to read SD seed vector. Skipping.");
f_close(&fp);
goto get_titlekeys;
}
f_close(&fp);
// this file is so small that parsing the savedata properly would take longer
if (f_open(&fp, "bis:/save/8000000000000043", FA_READ | FA_OPEN_EXISTING)) {
EPRINTF("Unable to open ns_appman save.\nSkipping SD seed.");
goto get_titlekeys;
}
u8 read_buf[0x20] = {0};
for (u32 i = 0x8000; i < f_size(&fp); i += 0x4000) {
if (f_lseek(&fp, i) || f_read(&fp, read_buf, 0x20, &read_bytes) || read_bytes != 0x20)
break;
if (!memcmp(temp_key, read_buf, 0x10)) {
memcpy(sd_seed, read_buf + 0x10, 0x10);
break;
}
}
f_close(&fp);
TPRINTFARGS("%kSD Seed... ", colors[(color_idx++) % 6]);
get_titlekeys:
if (!_key_exists(eticket_rsa_kek))
goto dismount;
gfx_printf("%kTitlekeys... ", colors[(color_idx++) % 6]);
u32 save_x = gfx_con.x, save_y = gfx_con.y;
gfx_printf("\n%kCommon... ", colors[color_idx % 6]);
u8 null_hash[0x20] = {
0xE3, 0xB0, 0xC4, 0x42, 0x98, 0xFC, 0x1C, 0x14, 0x9A, 0xFB, 0xF4, 0xC8, 0x99, 0x6F, 0xB9, 0x24,
0x27, 0xAE, 0x41, 0xE4, 0x64, 0x9B, 0x93, 0x4C, 0xA4, 0x95, 0x99, 0x1B, 0x78, 0x52, 0xB8, 0x55};
u32 buf_size = 0x4000;
u8 *buffer = (u8 *)MIXD_BUF_ALIGNED;
u8 keypair[0x230] = {0};
if (!emummc_storage_read(&emmc_storage, NX_EMMC_CALIBRATION_OFFSET / NX_EMMC_BLOCKSIZE, NX_EMMC_CALIBRATION_SIZE / NX_EMMC_BLOCKSIZE, buffer)) {
EPRINTF("Unable to read PRODINFO.");
goto dismount;
}
se_aes_xts_crypt(1, 0, 0, 0, buffer, buffer, 0x4000, NX_EMMC_CALIBRATION_SIZE / 0x4000);
nx_emmc_cal0_t *cal0 = (nx_emmc_cal0_t *)buffer;
if (cal0->magic != 0x304C4143) {
EPRINTF("CAL0 magic not found. Check BIS key 0.");
goto dismount;
}
u32 keypair_generation = cal0->ext_ecc_rsa2048_eticket_key_ver;
if (cal0->version <= 8)
keypair_generation = 0; // settings zeroes this out below cal version 9
if (keypair_generation) {
keypair_generation--;
for (u32 i = 0; i < 0x10; i++)
temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_03[i];
u8 temp_device_key[0x10] = {0};
_get_device_key(7, temp_device_key, keypair_generation, device_key_4x, master_key[0]);
_generate_kek(7, es_keys[1], temp_device_key, temp_key, NULL);
se_aes_crypt_block_ecb(7, 0, eticket_rsa_kek_personalized, es_keys[0]);
memcpy(temp_key, eticket_rsa_kek_personalized, 0x10);
} else {
memcpy(temp_key, eticket_rsa_kek, 0x10);
}
se_aes_key_set(6, temp_key, 0x10);
se_aes_crypt_ctr(6, keypair, 0x230, cal0->ext_ecc_rsa2048_eticket_key + 0x10, 0x230, cal0->ext_ecc_rsa2048_eticket_key);
u8 *D = keypair, *N = keypair + 0x100, *E = keypair + 0x200;
// Check public exponent is 0x10001 big endian
if (E[0] != 0 || E[1] != 1 || E[2] != 0 || E[3] != 1) {
EPRINTF("Invalid public exponent.");
goto dismount;
}
if (!_test_key_pair(E, D, N)) {
EPRINTF("Invalid keypair. Check eticket_rsa_kek.");
goto dismount;
}
se_rsa_key_set(0, N, 0x100, D, 0x100);
u64 br = buf_size;
u32 file_tkey_count = 0;
u64 offset = 0;
rights_ids = (u8 *)(MIXD_BUF_ALIGNED + 0x40000);
titlekeys = (u8 *)(MIXD_BUF_ALIGNED + 0x80000);
save_ctx = calloc(1, sizeof(save_ctx_t));
u8 M[0x100];
if (f_open(&fp, "bis:/save/80000000000000E1", FA_READ | FA_OPEN_EXISTING)) {
EPRINTF("Unable to open e1 save. Skipping.");
goto dismount;
}
u32 pct = 0, last_pct = 0;
save_ctx->file = &fp;
save_ctx->action = 0;
memcpy(save_ctx->save_mac_key, save_mac_key, 0x10);
save_process_success = save_process(save_ctx);
if (!save_process_success) {
EPRINTF("Failed to process e1 save.");
f_close(&fp);
goto dismount;
}
char ticket_bin_path[0x40] = "/ticket.bin";
char ticket_list_bin_path[0x40] = "/ticket_list.bin";
save_data_file_ctx_t ticket_file;
if (!save_open_file(save_ctx, &ticket_file, ticket_list_bin_path, OPEN_MODE_READ)) {
EPRINTF("Unable to locate ticket_list.bin in e1.");
f_close(&fp);
goto dismount;
}
bool terminator_reached = false;
while (offset < ticket_file.size && !terminator_reached) {
if (!save_data_file_read(&ticket_file, &br, offset, buffer, buf_size) || buffer[0] == 0 || br != buf_size)
break;
offset += br;
minerva_periodic_training();
for (u32 j = 0; j < buf_size; j += 0x20) {
if (buffer[j] == 0xff && buffer[j+1] == 0xff && buffer[j+2] == 0xff && buffer[j+3] == 0xff) {
terminator_reached = true;
break;
}
file_tkey_count++;
}
}
if (!save_open_file(save_ctx, &ticket_file, ticket_bin_path, OPEN_MODE_READ)) {
EPRINTF("Unable to locate ticket.bin in e1 save.");
f_close(&fp);
goto dismount;
}
offset = 0;
terminator_reached = false;
while (offset < ticket_file.size && !terminator_reached) {
if (!save_data_file_read(&ticket_file, &br, offset, buffer, buf_size) || buffer[0] == 0 || br != buf_size)
break;
offset += br;
for (u32 j = 0; j < buf_size; j += 0x400) {
pct = _titlekey_count * 100 / file_tkey_count;
if (pct > last_pct && pct <= 100) {
last_pct = pct;
tui_pbar(save_x, save_y, pct, COLOR_GREEN, 0xFF155500);
}
minerva_periodic_training();
if (buffer[j] == 4 && buffer[j+1] == 0 && buffer[j+2] == 1 && buffer[j+3] == 0) {
memcpy(rights_ids + 0x10 * _titlekey_count, buffer + j + 0x2a0, 0x10);
memcpy(titlekeys + 0x10 * _titlekey_count, buffer + j + 0x180, 0x10);
_titlekey_count++;
} else {
terminator_reached = true;
break;
}
}
}
tui_pbar(save_x, save_y, 100, COLOR_GREEN, 0xFF155500);
f_close(&fp);
save_free_contexts(save_ctx);
save_process_success = false;
memset(save_ctx, 0, sizeof(save_ctx_t));
gfx_con_setpos(0, save_y);
TPRINTFARGS("\n%kCommon... ", colors[(color_idx++) % 6]);
save_x = gfx_con.x + 16 * 17;
save_y = gfx_con.y;
gfx_printf("\n%kPersonalized... ", colors[color_idx % 6]);
u32 common_titlekey_count = _titlekey_count;
if (f_open(&fp, "bis:/save/80000000000000E2", FA_READ | FA_OPEN_EXISTING)) {
EPRINTF("Unable to open e2 save. Skipping.");
goto dismount;
}
save_ctx->file = &fp;
save_ctx->action = 0;
memcpy(save_ctx->save_mac_key, save_mac_key, 0x10);
save_process_success = save_process(save_ctx);
if (!save_process_success) {
EPRINTF("Failed to process e2 save.");
f_close(&fp);
goto dismount;
}
if (!save_open_file(save_ctx, &ticket_file, ticket_list_bin_path, OPEN_MODE_READ)) {
EPRINTF("Unable to locate ticket_list.bin in e2 save.");
f_close(&fp);
goto dismount;
}
offset = 0;
file_tkey_count = 0;
terminator_reached = false;
while (offset < ticket_file.size && !terminator_reached) {
if (!save_data_file_read(&ticket_file, &br, offset, buffer, buf_size) || buffer[0] == 0 || br != buf_size)
break;
offset += br;
minerva_periodic_training();
for (u32 j = 0; j < buf_size; j += 0x20) {
if (buffer[j] == 0xff && buffer[j+1] == 0xff && buffer[j+2] == 0xff && buffer[j+3] == 0xff) {
terminator_reached = true;
break;
}
file_tkey_count++;
}
}
if (!save_open_file(save_ctx, &ticket_file, ticket_bin_path, OPEN_MODE_READ)) {
EPRINTF("Unable to locate ticket.bin in e2 save.");
f_close(&fp);
goto dismount;
}
offset = 0;
pct = 0;
last_pct = 0;
terminator_reached = false;
while (offset < ticket_file.size && !terminator_reached) {
if (!save_data_file_read(&ticket_file, &br, offset, buffer, buf_size) || buffer[0] == 0 || br != buf_size)
break;
offset += br;
for (u32 j = 0; j < buf_size; j += 0x400) {
pct = (_titlekey_count - common_titlekey_count) * 100 / file_tkey_count;
if (pct > last_pct && pct <= 100) {
last_pct = pct;
tui_pbar(save_x, save_y, pct, COLOR_GREEN, 0xFF155500);
}
minerva_periodic_training();
if (buffer[j] == 4 && buffer[j+1] == 0 && buffer[j+2] == 1 && buffer[j+3] == 0) {
memcpy(rights_ids + 0x10 * _titlekey_count, buffer + j + 0x2a0, 0x10);
u8 *titlekey_block = buffer + j + 0x180;
se_rsa_exp_mod(0, M, 0x100, titlekey_block, 0x100);
u8 *salt = M + 1;
u8 *db = M + 0x21;
_mgf1_xor(salt, 0x20, db, 0xdf);
_mgf1_xor(db, 0xdf, salt, 0x20);
if (memcmp(db, null_hash, 0x20) != 0)
continue;
memcpy(titlekeys + 0x10 * _titlekey_count, db + 0xcf, 0x10);
_titlekey_count++;
} else {
terminator_reached = true;
break;
}
}
}
tui_pbar(save_x, save_y, 100, COLOR_GREEN, 0xFF155500);
f_close(&fp);
gfx_con_setpos(0, save_y);
TPRINTFARGS("\n%kPersonalized... ", colors[(color_idx++) % 6]);
gfx_printf("\n%k Found %d titlekeys.\n", colors[(color_idx++) % 6], _titlekey_count);
dismount: ;
if (save_process_success)
save_free_contexts(save_ctx);
if (save_ctx)
free(save_ctx);
f_mount(NULL, "bis:", 1);
nx_emmc_gpt_free(&gpt);
key_output: ;
char *text_buffer = NULL;
if (!sd_mount()) {
EPRINTF("Unable to mount SD.");
goto free_buffers;
}
u32 text_buffer_size = MAX(_titlekey_count * 68 + 1, 0x4000);
text_buffer = (char *)calloc(1, text_buffer_size);
SAVE_KEY("aes_kek_generation_source", aes_kek_generation_source, 0x10);
SAVE_KEY("aes_key_generation_source", aes_key_generation_source, 0x10);
SAVE_KEY("bis_kek_source", bis_kek_source, 0x10);
SAVE_KEY_FAMILY("bis_key", bis_key, 0, 4, 0x20);
SAVE_KEY_FAMILY("bis_key_source", bis_key_source, 0, 3, 0x20);
SAVE_KEY("device_key", device_key, 0x10);
SAVE_KEY("device_key_4x", device_key_4x, 0x10);
SAVE_KEY("eticket_rsa_kek", eticket_rsa_kek, 0x10);
SAVE_KEY("eticket_rsa_kek_personalized", eticket_rsa_kek_personalized, 0x10);
SAVE_KEY("eticket_rsa_kek_source", es_keys[0], 0x10);
SAVE_KEY("eticket_rsa_kekek_source", es_keys[1], 0x10);
SAVE_KEY("header_kek_source", fs_keys[FS_HEADER_KEK_SOURCE], 0x10);
SAVE_KEY("header_key", header_key, 0x20);
SAVE_KEY("header_key_source", fs_keys[FS_HEADER_KEY_SOURCE], 0x20);
SAVE_KEY_FAMILY("key_area_key_application", key_area_key[0], 0, derivable_key_count, 0x10);
SAVE_KEY("key_area_key_application_source", fs_keys[FS_KEY_AREA_KEY_APPLI_SOURCE], 0x10);
SAVE_KEY_FAMILY("key_area_key_ocean", key_area_key[1], 0, derivable_key_count, 0x10);
SAVE_KEY("key_area_key_ocean_source", fs_keys[FS_KEY_AREA_KEY_OCEAN_SOURCE], 0x10);
SAVE_KEY_FAMILY("key_area_key_system", key_area_key[2], 0, derivable_key_count, 0x10);
SAVE_KEY("key_area_key_system_source", fs_keys[FS_KEY_AREA_KEY_SYSTE_SOURCE], 0x10);
SAVE_KEY_FAMILY("keyblob", keyblob, 0, 6, 0x90);
SAVE_KEY_FAMILY("keyblob_key", keyblob_key, 0, 6, 0x10);
SAVE_KEY_FAMILY("keyblob_key_source", keyblob_key_source, 0, 6, 0x10);
SAVE_KEY_FAMILY("keyblob_mac_key", keyblob_mac_key, 0, 6, 0x10);
SAVE_KEY("keyblob_mac_key_source", keyblob_mac_key_source, 0x10);
SAVE_KEY_FAMILY("master_kek", master_kek, 0, derivable_key_count, 0x10);
SAVE_KEY_FAMILY("master_kek_source", master_kek_sources, KB_FIRMWARE_VERSION_620, sizeof(master_kek_sources) / 0x10, 0x10);
SAVE_KEY_FAMILY("master_key", master_key, 0, derivable_key_count, 0x10);
SAVE_KEY("master_key_source", master_key_source, 0x10);
SAVE_KEY_FAMILY("package1_key", package1_key, 0, 6, 0x10);
SAVE_KEY_FAMILY("package2_key", package2_key, 0, derivable_key_count, 0x10);
SAVE_KEY("package2_key_source", package2_key_source, 0x10);
SAVE_KEY("per_console_key_source", per_console_key_source, 0x10);
SAVE_KEY("retail_specific_aes_key_source", retail_specific_aes_key_source, 0x10);
for (u32 i = 0; i < 0x10; i++)
temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_03[i];
SAVE_KEY("rsa_oaep_kek_generation_source", temp_key, 0x10);
for (u32 i = 0; i < 0x10; i++)
temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_01[i];
SAVE_KEY("rsa_private_kek_generation_source", temp_key, 0x10);
SAVE_KEY("save_mac_kek_source", fs_keys[FS_SAVE_MAC_KEK_SOURCE], 0x10);
SAVE_KEY("save_mac_key", save_mac_key, 0x10);
SAVE_KEY("save_mac_key_source", fs_keys[FS_SAVE_MAC_KEY_SOURCE], 0x10);
SAVE_KEY("save_mac_sd_card_kek_source", fs_keys[FS_SAVE_MAC_SD_KEK_SOURCE], 0x10);
SAVE_KEY("save_mac_sd_card_key_source", fs_keys[FS_SAVE_MAC_SD_KEY_SOURCE], 0x10);
SAVE_KEY("sd_card_custom_storage_key_source", fs_keys[FS_SD_CUSTOM_KEY_SOURCE], 0x20);
SAVE_KEY("sd_card_kek_source", fs_keys[FS_SD_KEK_SOURCE], 0x10);
SAVE_KEY("sd_card_nca_key_source", fs_keys[FS_SD_NCA_KEY_SOURCE], 0x20);
SAVE_KEY("sd_card_save_key_source", fs_keys[FS_SD_SAVE_KEY_SOURCE], 0x20);
SAVE_KEY("sd_seed", sd_seed, 0x10);
SAVE_KEY("secure_boot_key", sbk, 0x10);
SAVE_KEY("ssl_rsa_kek", ssl_rsa_kek, 0x10);
SAVE_KEY("ssl_rsa_kek_source_x", es_keys[2], 0x10);
SAVE_KEY("ssl_rsa_kek_source_y", ssl_keys, 0x10);
SAVE_KEY_FAMILY("titlekek", titlekek, 0, derivable_key_count, 0x10);
SAVE_KEY("titlekek_source", titlekek_source, 0x10);
SAVE_KEY("tsec_key", tsec_keys, 0x10);
if (pkg1_id->kb == KB_FIRMWARE_VERSION_620)
SAVE_KEY("tsec_root_key", tsec_keys + 0x10, 0x10);
//gfx_con.fntsz = 8; gfx_puts(text_buffer); gfx_con.fntsz = 16;
end_time = get_tmr_us();
gfx_printf("\n%k Found %d keys.\n\n", colors[(color_idx++) % 6], _key_count);
gfx_printf("%kLockpick totally done in %d us\n\n", colors[(color_idx++) % 6], end_time - begin_time);
gfx_printf("%kFound through master_key_%02x.\n\n", colors[(color_idx++) % 6], derivable_key_count - 1);
f_mkdir("sd:/switch");
char keyfile_path[30] = "sd:/switch/";
if (!(fuse_read_odm(4) & 3))
sprintf(&keyfile_path[11], "prod.keys");
else
sprintf(&keyfile_path[11], "dev.keys");
if (!sd_save_to_file(text_buffer, strlen(text_buffer), keyfile_path) && !f_stat(keyfile_path, &fno)) {
gfx_printf("%kWrote %d bytes to %s\n", colors[(color_idx++) % 6], (u32)fno.fsize, keyfile_path);
} else
EPRINTF("Unable to save keys to SD.");
if (_titlekey_count == 0)
goto free_buffers;
memset(text_buffer, 0, text_buffer_size);
for (u32 i = 0; i < _titlekey_count; i++) {
for (u32 j = 0; j < 0x10; j++)
sprintf(&text_buffer[i * 68 + j * 2], "%02x", rights_ids[i * 0x10 + j]);
sprintf(&text_buffer[i * 68 + 0x20], " = ");
for (u32 j = 0; j < 0x10; j++)
sprintf(&text_buffer[i * 68 + 0x23 + j * 2], "%02x", titlekeys[i * 0x10 + j]);
sprintf(&text_buffer[i * 68 + 0x43], "\n");
}
sprintf(&keyfile_path[11], "title.keys");
if (!sd_save_to_file(text_buffer, strlen(text_buffer), keyfile_path) && !f_stat(keyfile_path, &fno)) {
gfx_printf("%kWrote %d bytes to %s\n", colors[(color_idx++) % 6], (u32)fno.fsize, keyfile_path);
} else
EPRINTF("Unable to save titlekeys to SD.");
free_buffers:
free(text_buffer);
out_wait:
emummc_load_cfg();
// Ignore whether emummc is enabled.
h_cfg.emummc_force_disable = emu_cfg.sector == 0 && !emu_cfg.path;
emu_cfg.enabled = !h_cfg.emummc_force_disable;
emummc_storage_end(&emmc_storage);
gfx_printf("\n%kPress a button to return to the menu.", colors[(color_idx) % 6], colors[(color_idx + 1) % 6], colors[(color_idx + 2) % 6]);
btn_wait();
gfx_clear_grey(0x1B);
}
static void _save_key(const char *name, const void *data, u32 len, char *outbuf) {
if (!_key_exists(data))
return;
u32 pos = strlen(outbuf);
pos += sprintf(&outbuf[pos], "%s = ", name);
for (u32 i = 0; i < len; i++)
pos += sprintf(&outbuf[pos], "%02x", *(u8*)(data + i));
sprintf(&outbuf[pos], "\n");
_key_count++;
}
static void _save_key_family(const char *name, const void *data, u32 start_key, u32 num_keys, u32 len, char *outbuf) {
char temp_name[0x40] = {0};
for (u32 i = 0; i < num_keys; i++) {
sprintf(temp_name, "%s_%02x", name, i + start_key);
_save_key(temp_name, data + i * len, len, outbuf);
}
}
static void _generate_kek(u32 ks, const void *key_source, void *master_key, const void *kek_seed, const void *key_seed) {
if (!_key_exists(key_source) || !_key_exists(master_key) || !_key_exists(kek_seed))
return;
se_aes_key_set(ks, master_key, 0x10);
se_aes_unwrap_key(ks, ks, kek_seed);
se_aes_unwrap_key(ks, ks, key_source);
if (key_seed && _key_exists(key_seed))
se_aes_unwrap_key(ks, ks, key_seed);
}
static void _get_device_key(u32 ks, void *out_device_key, u32 revision, const void *device_key, const void *master_key) {
if (revision < KB_FIRMWARE_VERSION_400)
memcpy(out_device_key, device_key, 0x10);
revision -= KB_FIRMWARE_VERSION_400;
u8 temp_key[0x10] = {0};
se_aes_key_set(ks, device_key, 0x10);
se_aes_crypt_ecb(ks, 0, temp_key, 0x10, device_master_key_source_sources[revision], 0x10);
se_aes_key_set(ks, master_key, 0x10);
se_aes_unwrap_key(ks, ks, device_master_kek_sources[revision]);
se_aes_crypt_ecb(ks, 0, out_device_key, 0x10, temp_key, 0x10);
}
static bool _test_key_pair(const void *E, const void *D, const void *N) {
u8 X[0x100] = {0}, Y[0x100] = {0}, Z[0x100] = {0};
// 0xCAFEBABE
X[0xfc] = 0xca; X[0xfd] = 0xfe; X[0xfe] = 0xba; X[0xff] = 0xbe;
se_rsa_key_set(0, N, 0x100, D, 0x100);
se_rsa_exp_mod(0, Y, 0x100, X, 0x100);
se_rsa_key_set(0, N, 0x100, E, 4);
se_rsa_exp_mod(0, Z, 0x100, Y, 0x100);
return !memcmp(X, Z, 0x100);
}
// _mgf1_xor() was derived from Atmosphère's calculate_mgf1_and_xor
static void _mgf1_xor(void *masked, u32 masked_size, const void *seed, u32 seed_size) {
u8 cur_hash[0x20];
u8 hash_buf[0xe4];
u32 hash_buf_size = seed_size + 4;
memcpy(hash_buf, seed, seed_size);
u32 round_num = 0;
u8 *p_out = (u8 *)masked;
while (masked_size) {
u32 cur_size = MIN(masked_size, 0x20);
for (u32 i = 0; i < 4; i++)
hash_buf[seed_size + 3 - i] = (round_num >> (8 * i)) & 0xff;
round_num++;
se_calc_sha256(cur_hash, hash_buf, hash_buf_size);
for (unsigned int i = 0; i < cur_size; i++) {
*p_out ^= cur_hash[i];
p_out++;
}
masked_size -= cur_size;
}
}
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