Mascali/Picklock_RCM
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Move Mariko partial key dump to main menu

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This commit is contained in:
shchmue 2022-03-31 12:28:32 -06:00
parent c704d0a6e6
commit 582bc91605
5 changed files with 92 additions and 41 deletions
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36
source/keys/keys.c
View file

@ -583,11 +583,15 @@ static bool _derive_emmc_keys(key_derivation_ctx_t *keys, titlekey_buffer_t *tit
// The security engine supports partial key override for locked keyslots
// This allows for a manageable brute force on a PC
// Then the Mariko AES class keys, KEK, BEK, unique SBK and SSK can be recovered
static void _save_mariko_partial_keys(u32 start, u32 count, bool append) {
int save_mariko_partial_keys(u32 start, u32 count, bool append) {
if (start + count > SE_AES_KEYSLOT_COUNT) {
return;
return 1;
}
display_backlight_brightness(h_cfg.backlight, 1000);
gfx_clear_partial_grey(0x1B, 32, 1224);
gfx_con_setpos(0, 32);
u32 pos = 0;
u32 zeros[AES_128_KEY_SIZE / 4] = {0};
u8 *data = malloc(4 * AES_128_KEY_SIZE);
@ -632,11 +636,11 @@ static void _save_mariko_partial_keys(u32 start, u32 count, bool append) {
if (strlen(text_buffer) == 0) {
EPRINTFARGS("Failed to dump partial keys %d-%d.", start, start + count - 1);
return;
free(text_buffer);
return 2;
}
FIL fp;
u32 res = 0;
BYTE mode = FA_WRITE;
if (append) {
@ -645,10 +649,16 @@ static void _save_mariko_partial_keys(u32 start, u32 count, bool append) {
mode |= FA_CREATE_ALWAYS;
}
res = f_open(&fp, "sd:/switch/partialaes.keys", mode);
if (res) {
if (!sd_mount()) {
EPRINTF("Unable to mount SD.");
free(text_buffer);
return 3;
}
if (f_open(&fp, "sd:/switch/partialaes.keys", mode)) {
EPRINTF("Unable to write partial keys to SD.");
return;
free(text_buffer);
return 3;
}
f_write(&fp, text_buffer, strlen(text_buffer), NULL);
@ -657,6 +667,8 @@ static void _save_mariko_partial_keys(u32 start, u32 count, bool append) {
gfx_printf("%kWrote partials to sd:/switch/partialaes.keys\n", colors[(color_idx++) % 6]);
free(text_buffer);
return 0;
}
static void _save_keys_to_sd(key_derivation_ctx_t *keys, titlekey_buffer_t *titlekey_buffer, bool is_dev) {
@ -756,10 +768,6 @@ static void _save_keys_to_sd(key_derivation_ctx_t *keys, titlekey_buffer_t *titl
} else
EPRINTF("Unable to save keys to SD.");
if (h_cfg.t210b01) {
_save_mariko_partial_keys(12, 4, true);
}
if (_titlekey_count == 0 || !titlekey_buffer) {
free(text_buffer);
return;
@ -801,12 +809,6 @@ static void _derive_keys() {
minerva_periodic_training();
if (h_cfg.t210b01) {
_save_mariko_partial_keys(0, 12, false);
}
minerva_periodic_training();
if (!_check_keyslot_access()) {
EPRINTF("Unable to set crypto keyslots!\nTry launching payload differently\n or flash Spacecraft-NX if using a modchip.");
return;

1
source/keys/keys.h
View file

@ -141,5 +141,6 @@ typedef struct {
#define SAVE_KEY_FAMILY_VAR(name, varname, start) _save_key_family(#name, varname, start, ARRAY_SIZE(varname), sizeof(*(varname)), text_buffer)
void dump_keys();
int save_mariko_partial_keys(u32 start, u32 count, bool append);
#endif