The-Homebrew-Cloud/Lockpick_RCM-Fork
2
0
Fork 0
mirror of https://vps.suchmeme.nl/git/mudkip/Lockpick_RCM.git synced 2024-11-22 14:49:16 +01:00
Code Issues Packages Projects Releases Wiki Activity

keys: Finish refactor

Browse Source
This commit is contained in:
shchmue 2020-12-10 12:39:09 -07:00
parent b074d14107
commit b7495bd575
2 changed files with 301 additions and 269 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

561
source/keys/keys.c
View File

@ -470,7 +470,7 @@ static bool _get_titlekeys_from_save(u32 buf_size, const u8 *save_mac_key, title
offset = 0; offset = 0;
terminator_reached = false; terminator_reached = false;
u32 pct = 0, last_pct = 0; u32 pct = 0, last_pct = 0, i = 0;
while (offset < ticket_file.size && !terminator_reached) { while (offset < ticket_file.size && !terminator_reached) {
if (!save_data_file_read(&ticket_file, &br, offset, titlekey_buffer->read_buffer, buf_size) || titlekey_buffer->read_buffer[0] == 0 || br != buf_size) if (!save_data_file_read(&ticket_file, &br, offset, titlekey_buffer->read_buffer, buf_size) || titlekey_buffer->read_buffer[0] == 0 || br != buf_size)
break; break;
@ -483,10 +483,14 @@ static bool _get_titlekeys_from_save(u32 buf_size, const u8 *save_mac_key, title
last_pct = pct; last_pct = pct;
tui_pbar(save_x, save_y, pct, COLOR_GREEN, 0xFF155500); tui_pbar(save_x, save_y, pct, COLOR_GREEN, 0xFF155500);
} }
if (curr_ticket->signature_type != ticket_sig_type_rsa2048_sha256) { if (i == file_tkey_count || curr_ticket->signature_type == 0) {
terminator_reached = true; terminator_reached = true;
break; break;
} }
if (curr_ticket->signature_type != ticket_sig_type_rsa2048_sha256) {
i++;
continue;
}
if (is_personalized) { if (is_personalized) {
se_rsa_exp_mod(0, curr_ticket->titlekey_block, sizeof(curr_ticket->titlekey_block), curr_ticket->titlekey_block, sizeof(curr_ticket->titlekey_block)); se_rsa_exp_mod(0, curr_ticket->titlekey_block, sizeof(curr_ticket->titlekey_block), curr_ticket->titlekey_block, sizeof(curr_ticket->titlekey_block));
if (se_rsa_oaep_decode( if (se_rsa_oaep_decode(
@ -500,6 +504,7 @@ static bool _get_titlekeys_from_save(u32 buf_size, const u8 *save_mac_key, title
memcpy(titlekey_buffer->rights_ids[_titlekey_count], curr_ticket->rights_id, sizeof(titlekey_buffer->rights_ids[0])); memcpy(titlekey_buffer->rights_ids[_titlekey_count], curr_ticket->rights_id, sizeof(titlekey_buffer->rights_ids[0]));
memcpy(titlekey_buffer->titlekeys[_titlekey_count], curr_ticket->titlekey_block, sizeof(titlekey_buffer->titlekeys[0])); memcpy(titlekey_buffer->titlekeys[_titlekey_count], curr_ticket->titlekey_block, sizeof(titlekey_buffer->titlekeys[0]));
_titlekey_count++; _titlekey_count++;
i++;
} }
} }
tui_pbar(save_x, save_y, 100, COLOR_GREEN, 0xFF155500); tui_pbar(save_x, save_y, 100, COLOR_GREEN, 0xFF155500);
@ -520,35 +525,290 @@ static bool _get_titlekeys_from_save(u32 buf_size, const u8 *save_mac_key, title
return true; return true;
} }
void dump_keys() { static bool _derive_sd_seed(key_derivation_ctx_t *keys) {
key_derivation_ctx_t __attribute__((aligned(4))) keys = {0}; FIL fp;
u32 read_bytes = 0;
char *private_path = malloc(200);
strcpy(private_path, "sd:/");
sd_mount(); 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");
FRESULT fr = f_open(&fp, private_path, FA_READ | FA_OPEN_EXISTING);
free(private_path);
if (fr) {
EPRINTF("Unable to open SD seed vector. Skipping.");
return false;
}
// get sd seed verification vector
if (f_read(&fp, keys->temp_key, AES_128_KEY_SIZE, &read_bytes) || read_bytes != AES_128_KEY_SIZE) {
EPRINTF("Unable to read SD seed vector. Skipping.");
f_close(&fp);
return false;
}
f_close(&fp);
display_backlight_brightness(h_cfg.backlight, 1000); // this file is small enough that parsing the savedata properly is slower
gfx_clear_grey(0x1B); if (f_open(&fp, "bis:/save/8000000000000043", FA_READ | FA_OPEN_EXISTING)) {
gfx_con_setpos(0, 0); EPRINTF("Unable to open ns_appman save.\nSkipping SD seed.");
return false;
}
gfx_printf("[%kLo%kck%kpi%kck%k_R%kCM%k v%d.%d.%d%k]\n\n", u8 read_buf[0x20] __attribute__((aligned(4))) = {0};
colors[0], colors[1], colors[2], colors[3], colors[4], colors[5], 0xFFFF00FF, LP_VER_MJ, LP_VER_MN, LP_VER_BF, 0xFFCCCCCC); 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(keys->temp_key, read_buf, sizeof(keys->temp_key))) {
memcpy(keys->sd_seed, read_buf + 0x10, sizeof(keys->sd_seed));
break;
}
}
f_close(&fp);
_key_count = 0; TPRINTFARGS("%kSD Seed... ", colors[(color_idx++) % 6]);
_titlekey_count = 0;
color_idx = 0;
start_time = get_tmr_us(); return true;
}
static bool _derive_titlekeys(key_derivation_ctx_t *keys, titlekey_buffer_t *titlekey_buffer) {
if (!_key_exists(keys->eticket_rsa_kek)) {
return false;
}
gfx_printf("%kTitlekeys... \n", colors[(color_idx++) % 6]);
u32 buf_size = 0x4000;
rsa_keypair_t rsa_keypair = {0};
if (!emummc_storage_read(&emmc_storage, NX_EMMC_CALIBRATION_OFFSET / NX_EMMC_BLOCKSIZE, NX_EMMC_CALIBRATION_SIZE / NX_EMMC_BLOCKSIZE, titlekey_buffer->read_buffer)) {
EPRINTF("Unable to read PRODINFO.");
return false;
}
se_aes_xts_crypt(1, 0, 0, 0, titlekey_buffer->read_buffer, titlekey_buffer->read_buffer, XTS_CLUSTER_SIZE, NX_EMMC_CALIBRATION_SIZE / XTS_CLUSTER_SIZE);
nx_emmc_cal0_t *cal0 = (nx_emmc_cal0_t *)titlekey_buffer->read_buffer;
if (cal0->magic != MAGIC_CAL0) {
EPRINTF("Invalid CAL0 magic. Check BIS key 0.");
return false;
}
// settings sysmodule manually zeroes this out below cal version 9
u32 keypair_generation = cal0->version <= 8 ? 0 : cal0->ext_ecc_rsa2048_eticket_key_ver;
if (keypair_generation) {
keypair_generation--;
for (u32 i = 0; i < AES_128_KEY_SIZE; i++)
keys->temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_03[i];
u32 temp_device_key[AES_128_KEY_SIZE / 4] = {0};
_get_device_key(7, temp_device_key, keypair_generation, keys->device_key, keys->device_key_4x, keys->master_key[0]);
_generate_kek(7, eticket_rsa_kekek_source, temp_device_key, keys->temp_key, NULL);
se_aes_crypt_block_ecb(7, 0, keys->eticket_rsa_kek_personalized, eticket_rsa_kek_source);
memcpy(keys->temp_key, keys->eticket_rsa_kek_personalized, sizeof(keys->temp_key));
} else {
memcpy(keys->temp_key, keys->eticket_rsa_kek, sizeof(keys->temp_key));
}
se_aes_key_set(6, keys->temp_key, sizeof(keys->temp_key));
se_aes_crypt_ctr(6, &rsa_keypair, sizeof(rsa_keypair), cal0->ext_ecc_rsa2048_eticket_key, sizeof(cal0->ext_ecc_rsa2048_eticket_key), cal0->ext_ecc_rsa2048_eticket_key_iv);
// Check public exponent is 65537 big endian
if (_read_be_u32(rsa_keypair.public_exponent, 0) != 65537) {
EPRINTF("Invalid public exponent.");
return false;
}
if (!_test_key_pair(rsa_keypair.public_exponent, rsa_keypair.private_exponent, rsa_keypair.modulus)) {
EPRINTF("Invalid keypair. Check eticket_rsa_kek.");
return false;
}
se_rsa_key_set(0, rsa_keypair.modulus, sizeof(rsa_keypair.modulus), rsa_keypair.private_exponent, sizeof(rsa_keypair.private_exponent));
_get_titlekeys_from_save(buf_size, keys->save_mac_key, titlekey_buffer, NULL);
_get_titlekeys_from_save(buf_size, keys->save_mac_key, titlekey_buffer, &rsa_keypair);
gfx_printf("\n%k Found %d titlekeys.\n", colors[(color_idx++) % 6], _titlekey_count);
return true;
}
static bool _derive_emmc_keys(key_derivation_ctx_t *keys, titlekey_buffer_t *titlekey_buffer) {
// Set BIS keys.
// PRODINFO/PRODINFOF
se_aes_key_set(0, keys->bis_key[0] + 0x00, AES_128_KEY_SIZE);
se_aes_key_set(1, keys->bis_key[0] + 0x10, AES_128_KEY_SIZE);
// SAFE
se_aes_key_set(2, keys->bis_key[1] + 0x00, AES_128_KEY_SIZE);
se_aes_key_set(3, keys->bis_key[1] + 0x10, AES_128_KEY_SIZE);
// SYSTEM/USER
se_aes_key_set(4, keys->bis_key[2] + 0x00, AES_128_KEY_SIZE);
se_aes_key_set(5, keys->bis_key[2] + 0x10, AES_128_KEY_SIZE);
if (!emummc_storage_set_mmc_partition(&emmc_storage, EMMC_GPP)) {
EPRINTF("Unable to set partition.");
return false;
}
// 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.");
nx_emmc_gpt_free(&gpt);
return false;
}
nx_emmc_bis_init(system_part);
if (f_mount(&emmc_fs, "bis:", 1)) {
EPRINTF("Unable to mount system partition.");
nx_emmc_gpt_free(&gpt);
return false;
}
if (!_derive_sd_seed(keys)) {
EPRINTF("Unable to get SD seed.");
}
bool res = _derive_titlekeys(keys, titlekey_buffer);
if (!res) {
EPRINTF("Unable to derive titlekeys.");
}
f_mount(NULL, "bis:", 1);
nx_emmc_gpt_free(&gpt);
return res;
}
static void _save_keys_to_sd(key_derivation_ctx_t *keys, titlekey_buffer_t *titlekey_buffer, const pkg1_id_t *pkg1_id, u32 start_whole_operation_time, u32 derivable_key_count) {
char *text_buffer = NULL;
if (!sd_mount()) {
EPRINTF("Unable to mount SD.");
return;
}
u32 text_buffer_size = MAX(_titlekey_count * sizeof(titlekey_text_buffer_t) + 1, 0x4000);
text_buffer = (char *)calloc(1, text_buffer_size);
SAVE_KEY(aes_kek_generation_source);
SAVE_KEY(aes_key_generation_source);
SAVE_KEY(bis_kek_source);
SAVE_KEY_FAMILY_VAR(bis_key, keys->bis_key, 0);
SAVE_KEY_FAMILY(bis_key_source, 0);
SAVE_KEY_VAR(device_key, keys->device_key);
SAVE_KEY_VAR(device_key_4x, keys->device_key_4x);
SAVE_KEY_VAR(eticket_rsa_kek, keys->eticket_rsa_kek);
SAVE_KEY_VAR(eticket_rsa_kek_personalized, keys->eticket_rsa_kek_personalized);
SAVE_KEY(eticket_rsa_kek_source);
SAVE_KEY(eticket_rsa_kekek_source);
SAVE_KEY(header_kek_source);
SAVE_KEY_VAR(header_key, keys->header_key);
SAVE_KEY(header_key_source);
SAVE_KEY_FAMILY_VAR(key_area_key_application, keys->key_area_key[0], 0);
SAVE_KEY_VAR(key_area_key_application_source, key_area_key_sources[0]);
SAVE_KEY_FAMILY_VAR(key_area_key_ocean, keys->key_area_key[1], 0);
SAVE_KEY_VAR(key_area_key_ocean_source, key_area_key_sources[1]);
SAVE_KEY_FAMILY_VAR(key_area_key_system, keys->key_area_key[2], 0);
SAVE_KEY_VAR(key_area_key_system_source, key_area_key_sources[2]);
SAVE_KEY_FAMILY_VAR(keyblob, keys->keyblob, 0);
SAVE_KEY_FAMILY_VAR(keyblob_key, keys->keyblob_key, 0);
SAVE_KEY_FAMILY(keyblob_key_source, 0);
SAVE_KEY_FAMILY_VAR(keyblob_mac_key, keys->keyblob_mac_key, 0);
SAVE_KEY(keyblob_mac_key_source);
SAVE_KEY_FAMILY_VAR(master_kek, keys->master_kek, 0);
SAVE_KEY_FAMILY_VAR(master_kek_source, master_kek_sources, KB_FIRMWARE_VERSION_620);
SAVE_KEY_FAMILY_VAR(master_key, keys->master_key, 0);
SAVE_KEY(master_key_source);
SAVE_KEY_FAMILY_VAR(package1_key, keys->package1_key, 0);
SAVE_KEY_FAMILY_VAR(package2_key, keys->package2_key, 0);
SAVE_KEY(package2_key_source);
SAVE_KEY(per_console_key_source);
SAVE_KEY(retail_specific_aes_key_source);
for (u32 i = 0; i < AES_128_KEY_SIZE; i++)
keys->temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_03[i];
SAVE_KEY_VAR(rsa_oaep_kek_generation_source, keys->temp_key);
for (u32 i = 0; i < AES_128_KEY_SIZE; i++)
keys->temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_01[i];
SAVE_KEY_VAR(rsa_private_kek_generation_source, keys->temp_key);
SAVE_KEY(save_mac_kek_source);
SAVE_KEY_VAR(save_mac_key, keys->save_mac_key);
SAVE_KEY(save_mac_key_source);
SAVE_KEY(save_mac_sd_card_kek_source);
SAVE_KEY(save_mac_sd_card_key_source);
SAVE_KEY(sd_card_custom_storage_key_source);
SAVE_KEY(sd_card_kek_source);
SAVE_KEY(sd_card_nca_key_source);
SAVE_KEY(sd_card_save_key_source);
SAVE_KEY_VAR(sd_seed, keys->sd_seed);
SAVE_KEY_VAR(secure_boot_key, keys->sbk);
SAVE_KEY_VAR(ssl_rsa_kek, keys->ssl_rsa_kek);
SAVE_KEY(ssl_rsa_kek_source_x);
SAVE_KEY(ssl_rsa_kek_source_y);
SAVE_KEY_FAMILY_VAR(titlekek, keys->titlekek, 0);
SAVE_KEY(titlekek_source);
_save_key("tsec_key", keys->tsec_keys, AES_128_KEY_SIZE, text_buffer);
if (pkg1_id->kb == KB_FIRMWARE_VERSION_620)
_save_key("tsec_root_key", keys->tsec_keys + AES_128_KEY_SIZE, AES_128_KEY_SIZE, text_buffer);
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 - start_whole_operation_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/prod.keys";
if (fuse_read_odm(4) & 3)
sprintf(&keyfile_path[11], "dev.keys");
FILINFO fno;
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) {
free(text_buffer);
return;
}
memset(text_buffer, 0, text_buffer_size);
titlekey_text_buffer_t *titlekey_text = (titlekey_text_buffer_t *)text_buffer;
for (u32 i = 0; i < _titlekey_count; i++) {
for (u32 j = 0; j < AES_128_KEY_SIZE; j++)
sprintf(&titlekey_text[i].rights_id[j * 2], "%02x", titlekey_buffer->rights_ids[i][j]);
sprintf(titlekey_text[i].equals, " = ");
for (u32 j = 0; j < AES_128_KEY_SIZE; j++)
sprintf(&titlekey_text[i].titlekey[j * 2], "%02x", titlekey_buffer->titlekeys[i][j]);
sprintf(titlekey_text[i].newline, "\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(text_buffer);
}
static void _derive_keys() {
u32 start_whole_operation_time = get_tmr_us(); u32 start_whole_operation_time = get_tmr_us();
sdmmc_t sdmmc; sdmmc_t sdmmc;
const pkg1_id_t *pkg1_id; const pkg1_id_t *pkg1_id;
u8 *pkg1 = _read_pkg1(&sdmmc, &pkg1_id); u8 *pkg1 = _read_pkg1(&sdmmc, &pkg1_id);
if (!pkg1) { if (!pkg1) {
goto out_wait; return;
} }
u32 derivable_key_count = pkg1_id->kb >= KB_FIRMWARE_VERSION_620 ? pkg1_id->kb + 1 : 6; u32 derivable_key_count = pkg1_id->kb >= KB_FIRMWARE_VERSION_620 ? pkg1_id->kb + 1 : 6;
bool res = true; bool res = true;
key_derivation_ctx_t __attribute__((aligned(4))) keys = {0};
if (!h_cfg.t210b01) { if (!h_cfg.t210b01) {
tsec_ctxt_t tsec_ctxt; tsec_ctxt_t tsec_ctxt;
@ -557,7 +817,7 @@ void dump_keys() {
} }
free(pkg1); free(pkg1);
if (res == false) { if (res == false) {
goto out_wait; return;
} }
// Master key derivation // Master key derivation
@ -577,269 +837,34 @@ void dump_keys() {
_derive_misc_keys(&keys, &derivable_key_count); _derive_misc_keys(&keys, &derivable_key_count);
if (!_key_exists(keys.bis_key[2]))
{
EPRINTF("Missing FS keys. Skipping SD seed and titlekeys.");
goto key_output;
}
FILINFO fno;
FIL fp;
u32 read_bytes = 0;
// Set BIS keys.
// PRODINFO/PRODINFOF
se_aes_key_set(0, keys.bis_key[0] + 0x00, AES_128_KEY_SIZE);
se_aes_key_set(1, keys.bis_key[0] + 0x10, AES_128_KEY_SIZE);
// SAFE
se_aes_key_set(2, keys.bis_key[1] + 0x00, AES_128_KEY_SIZE);
se_aes_key_set(3, keys.bis_key[1] + 0x10, AES_128_KEY_SIZE);
// SYSTEM/USER
se_aes_key_set(4, keys.bis_key[2] + 0x00, AES_128_KEY_SIZE);
se_aes_key_set(5, keys.bis_key[2] + 0x10, AES_128_KEY_SIZE);
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, keys.temp_key, AES_128_KEY_SIZE, &read_bytes) || read_bytes != AES_128_KEY_SIZE) {
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] __attribute__((aligned(4))) = {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(keys.temp_key, read_buf, sizeof(keys.temp_key))) {
memcpy(keys.sd_seed, read_buf + 0x10, sizeof(keys.sd_seed));
break;
}
}
f_close(&fp);
TPRINTFARGS("%kSD Seed... ", colors[(color_idx++) % 6]);
get_titlekeys:
if (!_key_exists(keys.eticket_rsa_kek))
goto dismount;
gfx_printf("%kTitlekeys... \n", colors[(color_idx++) % 6]);
u32 buf_size = 0x4000;
rsa_keypair_t rsa_keypair = {0};
titlekey_buffer_t *titlekey_buffer = (titlekey_buffer_t *)TITLEKEY_BUF_ADR; titlekey_buffer_t *titlekey_buffer = (titlekey_buffer_t *)TITLEKEY_BUF_ADR;
if (!emummc_storage_read(&emmc_storage, NX_EMMC_CALIBRATION_OFFSET / NX_EMMC_BLOCKSIZE, NX_EMMC_CALIBRATION_SIZE / NX_EMMC_BLOCKSIZE, titlekey_buffer->read_buffer)) { // BIS key for SYSTEM partition
EPRINTF("Unable to read PRODINFO."); if (_key_exists(keys.bis_key[2])) {
goto dismount; _derive_emmc_keys(&keys, titlekey_buffer);
}
se_aes_xts_crypt(1, 0, 0, 0, titlekey_buffer->read_buffer, titlekey_buffer->read_buffer, XTS_CLUSTER_SIZE, NX_EMMC_CALIBRATION_SIZE / XTS_CLUSTER_SIZE);
nx_emmc_cal0_t *cal0 = (nx_emmc_cal0_t *)titlekey_buffer->read_buffer;
if (cal0->magic != MAGIC_CAL0) {
EPRINTF("Invalid CAL0 magic. Check BIS key 0.");
goto dismount;
}
// settings sysmodule manually zeroes this out below cal version 9
u32 keypair_generation = cal0->version <= 8 ? 0 : cal0->ext_ecc_rsa2048_eticket_key_ver;
if (keypair_generation) {
keypair_generation--;
for (u32 i = 0; i < AES_128_KEY_SIZE; i++)
keys.temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_03[i];
u32 temp_device_key[AES_128_KEY_SIZE / 4] = {0};
_get_device_key(7, temp_device_key, keypair_generation, keys.device_key, keys.device_key_4x, keys.master_key[0]);
_generate_kek(7, eticket_rsa_kekek_source, temp_device_key, keys.temp_key, NULL);
se_aes_crypt_block_ecb(7, 0, keys.eticket_rsa_kek_personalized, eticket_rsa_kek_source);
memcpy(keys.temp_key, keys.eticket_rsa_kek_personalized, sizeof(keys.temp_key));
} else { } else {
memcpy(keys.temp_key, keys.eticket_rsa_kek, sizeof(keys.temp_key)); EPRINTF("Missing needed BIS keys.\nSkipping SD seed and titlekeys.");
} }
se_aes_key_set(6, keys.temp_key, sizeof(keys.temp_key)); _save_keys_to_sd(&keys, titlekey_buffer, pkg1_id, start_whole_operation_time, derivable_key_count);
se_aes_crypt_ctr(6, &rsa_keypair, sizeof(rsa_keypair), cal0->ext_ecc_rsa2048_eticket_key, sizeof(cal0->ext_ecc_rsa2048_eticket_key), cal0->ext_ecc_rsa2048_eticket_key_iv);
// Check public exponent is 65537 big endian
if (_read_be_u32(rsa_keypair.public_exponent, 0) != 65537) {
EPRINTF("Invalid public exponent.");
goto dismount;
} }
if (!_test_key_pair(rsa_keypair.public_exponent, rsa_keypair.private_exponent, rsa_keypair.modulus)) { void dump_keys() {
EPRINTF("Invalid keypair. Check eticket_rsa_kek."); display_backlight_brightness(h_cfg.backlight, 1000);
goto dismount; gfx_clear_grey(0x1B);
} gfx_con_setpos(0, 0);
se_rsa_key_set(0, rsa_keypair.modulus, sizeof(rsa_keypair.modulus), rsa_keypair.private_exponent, sizeof(rsa_keypair.private_exponent)); 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);
_get_titlekeys_from_save(buf_size, keys.save_mac_key, titlekey_buffer, NULL); _key_count = 0;
_get_titlekeys_from_save(buf_size, keys.save_mac_key, titlekey_buffer, &rsa_keypair); _titlekey_count = 0;
color_idx = 0;
gfx_printf("\n%k Found %d titlekeys.\n", colors[(color_idx++) % 6], _titlekey_count); start_time = get_tmr_us();
dismount: ; _derive_keys();
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;
}
typedef struct {
char rights_id[0x20];
char equals[3];
char titlekey[0x20];
char newline[1];
} titlekey_text_buffer_t;
u32 text_buffer_size = MAX(_titlekey_count * sizeof(titlekey_text_buffer_t) + 1, 0x4000);
text_buffer = (char *)calloc(1, text_buffer_size);
SAVE_KEY(aes_kek_generation_source);
SAVE_KEY(aes_key_generation_source);
SAVE_KEY(bis_kek_source);
SAVE_KEY_FAMILY_VAR(bis_key, keys.bis_key, 0);
SAVE_KEY_FAMILY(bis_key_source, 0);
SAVE_KEY_VAR(device_key, keys.device_key);
SAVE_KEY_VAR(device_key_4x, keys.device_key_4x);
SAVE_KEY_VAR(eticket_rsa_kek, keys.eticket_rsa_kek);
SAVE_KEY_VAR(eticket_rsa_kek_personalized, keys.eticket_rsa_kek_personalized);
SAVE_KEY(eticket_rsa_kek_source);
SAVE_KEY(eticket_rsa_kekek_source);
SAVE_KEY(header_kek_source);
SAVE_KEY_VAR(header_key, keys.header_key);
SAVE_KEY(header_key_source);
SAVE_KEY_FAMILY_VAR(key_area_key_application, keys.key_area_key[0], 0);
SAVE_KEY_VAR(key_area_key_application_source, key_area_key_sources[0]);
SAVE_KEY_FAMILY_VAR(key_area_key_ocean, keys.key_area_key[1], 0);
SAVE_KEY_VAR(key_area_key_ocean_source, key_area_key_sources[1]);
SAVE_KEY_FAMILY_VAR(key_area_key_system, keys.key_area_key[2], 0);
SAVE_KEY_VAR(key_area_key_system_source, key_area_key_sources[2]);
SAVE_KEY_FAMILY_VAR(keyblob, keys.keyblob, 0);
SAVE_KEY_FAMILY_VAR(keyblob_key, keys.keyblob_key, 0);
SAVE_KEY_FAMILY(keyblob_key_source, 0);
SAVE_KEY_FAMILY_VAR(keyblob_mac_key, keys.keyblob_mac_key, 0);
SAVE_KEY(keyblob_mac_key_source);
SAVE_KEY_FAMILY_VAR(master_kek, keys.master_kek, 0);
SAVE_KEY_FAMILY_VAR(master_kek_source, master_kek_sources, KB_FIRMWARE_VERSION_620);
SAVE_KEY_FAMILY_VAR(master_key, keys.master_key, 0);
SAVE_KEY(master_key_source);
SAVE_KEY_FAMILY_VAR(package1_key, keys.package1_key, 0);
SAVE_KEY_FAMILY_VAR(package2_key, keys.package2_key, 0);
SAVE_KEY(package2_key_source);
SAVE_KEY(per_console_key_source);
SAVE_KEY(retail_specific_aes_key_source);
for (u32 i = 0; i < AES_128_KEY_SIZE; i++)
keys.temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_03[i];
SAVE_KEY_VAR(rsa_oaep_kek_generation_source, keys.temp_key);
for (u32 i = 0; i < AES_128_KEY_SIZE; i++)
keys.temp_key[i] = aes_kek_generation_source[i] ^ aes_kek_seed_01[i];
SAVE_KEY_VAR(rsa_private_kek_generation_source, keys.temp_key);
SAVE_KEY(save_mac_kek_source);
SAVE_KEY_VAR(save_mac_key, keys.save_mac_key);
SAVE_KEY(save_mac_key_source);
SAVE_KEY(save_mac_sd_card_kek_source);
SAVE_KEY(save_mac_sd_card_key_source);
SAVE_KEY(sd_card_custom_storage_key_source);
SAVE_KEY(sd_card_kek_source);
SAVE_KEY(sd_card_nca_key_source);
SAVE_KEY(sd_card_save_key_source);
SAVE_KEY_VAR(sd_seed, keys.sd_seed);
SAVE_KEY_VAR(secure_boot_key, keys.sbk);
SAVE_KEY_VAR(ssl_rsa_kek, keys.ssl_rsa_kek);
SAVE_KEY(ssl_rsa_kek_source_x);
SAVE_KEY(ssl_rsa_kek_source_y);
SAVE_KEY_FAMILY_VAR(titlekek, keys.titlekek, 0);
SAVE_KEY(titlekek_source);
_save_key("tsec_key", keys.tsec_keys, AES_128_KEY_SIZE, text_buffer);
if (pkg1_id->kb == KB_FIRMWARE_VERSION_620)
_save_key("tsec_root_key", keys.tsec_keys + AES_128_KEY_SIZE, AES_128_KEY_SIZE, text_buffer);
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 - start_whole_operation_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);
titlekey_text_buffer_t *titlekey_text = (titlekey_text_buffer_t *)text_buffer;
for (u32 i = 0; i < _titlekey_count; i++) {
for (u32 j = 0; j < AES_128_KEY_SIZE; j++)
sprintf(&titlekey_text[i].rights_id[j * 2], "%02x", titlekey_buffer->rights_ids[i][j]);
sprintf(titlekey_text[i].equals, " = ");
for (u32 j = 0; j < AES_128_KEY_SIZE; j++)
sprintf(&titlekey_text[i].titlekey[j * 2], "%02x", titlekey_buffer->titlekeys[i][j]);
sprintf(titlekey_text[i].newline, "\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(); emummc_load_cfg();
// Ignore whether emummc is enabled. // Ignore whether emummc is enabled.
h_cfg.emummc_force_disable = emu_cfg.sector == 0 && !emu_cfg.path; h_cfg.emummc_force_disable = emu_cfg.sector == 0 && !emu_cfg.path;

7
source/keys/keys.h
View File

@ -113,6 +113,13 @@ typedef struct {
keyblob_t keyblob[KB_FIRMWARE_VERSION_600 + 1]; keyblob_t keyblob[KB_FIRMWARE_VERSION_600 + 1];
} key_derivation_ctx_t; } key_derivation_ctx_t;
typedef struct {
char rights_id[0x20];
char equals[3];
char titlekey[0x20];
char newline[1];
} titlekey_text_buffer_t;
#define TPRINTF(text) \ #define TPRINTF(text) \
end_time = get_tmr_us(); \ end_time = get_tmr_us(); \
gfx_printf(text" done in %d us\n", end_time - start_time); \ gfx_printf(text" done in %d us\n", end_time - start_time); \