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fusee: Finish implementing support for 6.0.0

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hexkyz 2018-09-20 20:02:10 +01:00
parent 532b4f4de2
commit f622eac36e
4 changed files with 67 additions and 22 deletions
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8
fusee/fusee-secondary/src/key_derivation.c
View file

@ -30,6 +30,7 @@ static const uint8_t AL16 keyblob_seeds[MASTERKEY_REVISION_MAX][0x10] = {
{0x33, 0x76, 0x85, 0xEE, 0x88, 0x4A, 0xAE, 0x0A, 0xC2, 0x8A, 0xFD, 0x7D, 0x63, 0xC0, 0x43, 0x3B}, /* Keyblob seed 02. */
{0x2D, 0x1F, 0x48, 0x80, 0xED, 0xEC, 0xED, 0x3E, 0x3C, 0xF2, 0x48, 0xB5, 0x65, 0x7D, 0xF7, 0xBE}, /* Keyblob seed 03. */
{0xBB, 0x5A, 0x01, 0xF9, 0x88, 0xAF, 0xF5, 0xFC, 0x6C, 0xFF, 0x07, 0x9E, 0x13, 0x3C, 0x39, 0x80}, /* Keyblob seed 04. */
{0xD8, 0xCC, 0xE1, 0x26, 0x6A, 0x35, 0x3F, 0xCC, 0x20, 0xF3, 0x2D, 0x3B, 0x51, 0x7D, 0xE9, 0xC0} /* Keyblob seed 05. */
};
static const uint8_t AL16 keyblob_mac_seed[0x10] = {
@ -107,7 +108,7 @@ static int decrypt_keyblob(const nx_keyblob_t *keyblobs, uint32_t revision, uint
}
int load_package1_key(uint32_t revision) {
if (revision > MASTERKEY_REVISION_500_CURRENT) {
if (revision > MASTERKEY_REVISION_600_CURRENT) {
return -1;
}
@ -141,7 +142,7 @@ int derive_nx_keydata(uint32_t target_firmware, const nx_keyblob_t *keyblobs, ui
clear_aes_keyslot(0xE);
/* Get needed data. */
set_aes_keyslot(0xC, g_dec_keyblobs[MASTERKEY_REVISION_500_CURRENT].keys[0], 0x10);
set_aes_keyslot(0xC, g_dec_keyblobs[MASTERKEY_REVISION_600_CURRENT].keys[0], 0x10);
/* Also set the Package1 key for the revision that is stored on the eMMC boot0 partition. */
load_package1_key(available_revision);
@ -161,6 +162,7 @@ int derive_nx_keydata(uint32_t target_firmware, const nx_keyblob_t *keyblobs, ui
decrypt_data_into_keyslot(0xC, 0xC, masterkey_seed, 0x10);
break;
case EXOSPHERE_TARGET_FIRMWARE_500:
case EXOSPHERE_TARGET_FIRMWARE_600:
decrypt_data_into_keyslot(0xA, 0xF, devicekey_4x_seed, 0x10);
decrypt_data_into_keyslot(0xF, 0xF, devicekey_seed, 0x10);
decrypt_data_into_keyslot(0xE, 0xC, masterkey_4x_seed, 0x10);
@ -171,7 +173,7 @@ int derive_nx_keydata(uint32_t target_firmware, const nx_keyblob_t *keyblobs, ui
}
/* Setup master key revision, derive older master keys for use. */
return mkey_detect_revision();
return mkey_detect_revision(fuse_get_retail_type() != 0);
}
/* Sets final keyslot flags, for handover to TZ/Exosphere. Setting these will prevent the BPMP from using the device key or master key. */

3
fusee/fusee-secondary/src/key_derivation.h
View file

@ -20,7 +20,6 @@
#include <stddef.h>
#include <stdbool.h>
#include <stdint.h>
#include "masterkey.h"
typedef enum BisPartition {
BisPartition_Calibration = 0,
@ -41,11 +40,9 @@ typedef struct nx_keyblob_t {
};
} nx_keyblob_t;
/* TSEC fw must be 0x100-byte-aligned. */
int derive_nx_keydata(uint32_t target_firmware, const nx_keyblob_t *keyblobs, uint32_t available_revision, const void *tsec_fw, size_t tsec_fw_size);
int load_package1_key(uint32_t revision);
void finalize_nx_keydata(uint32_t target_firmware);
void derive_bis_key(void *dst, BisPartition partition_id, uint32_t target_firmware);
#endif

52
fusee/fusee-secondary/src/masterkey.c
View file

@ -26,8 +26,21 @@ static unsigned int g_mkey_revision = 0;
static bool g_determined_mkey_revision = false;
static uint8_t g_old_masterkeys[MASTERKEY_REVISION_MAX][0x10];
static uint8_t g_old_devicekeys[MASTERKEY_NUM_NEW_DEVICE_KEYS - 1][0x10];
/* TODO: Extend with new vectors, as needed. */
/* Dev unit keys. */
static const uint8_t mkey_vectors_dev[MASTERKEY_REVISION_MAX][0x10] =
{
{0x46, 0x22, 0xB4, 0x51, 0x9A, 0x7E, 0xA7, 0x7F, 0x62, 0xA1, 0x1F, 0x8F, 0xC5, 0x3A, 0xDB, 0xFE}, /* Zeroes encrypted with Master Key 00. */
{0x39, 0x33, 0xF9, 0x31, 0xBA, 0xE4, 0xA7, 0x21, 0x2C, 0xDD, 0xB7, 0xD8, 0xB4, 0x4E, 0x37, 0x23}, /* Master key 00 encrypted with Master key 01. */
{0x97, 0x29, 0xB0, 0x32, 0x43, 0x14, 0x8C, 0xA6, 0x85, 0xE9, 0x5A, 0x94, 0x99, 0x39, 0xAC, 0x5D}, /* Master key 01 encrypted with Master key 02. */
{0x2C, 0xCA, 0x9C, 0x31, 0x1E, 0x07, 0xB0, 0x02, 0x97, 0x0A, 0xD8, 0x03, 0xA2, 0x76, 0x3F, 0xA3}, /* Master key 02 encrypted with Master key 03. */
{0x9B, 0x84, 0x76, 0x14, 0x72, 0x94, 0x52, 0xCB, 0x54, 0x92, 0x9B, 0xC4, 0x8C, 0x5B, 0x0F, 0xBA}, /* Master key 03 encrypted with Master key 04. */
{0x78, 0xD5, 0xF1, 0x20, 0x3D, 0x16, 0xE9, 0x30, 0x32, 0x27, 0x34, 0x6F, 0xCF, 0xE0, 0x27, 0xDC}, /* Master key 04 encrypted with Master key 05. */
};
/* Retail unit keys. */
static const uint8_t mkey_vectors[MASTERKEY_REVISION_MAX][0x10] =
{
{0x0C, 0xF0, 0x59, 0xAC, 0x85, 0xF6, 0x26, 0x65, 0xE1, 0xE9, 0x19, 0x55, 0xE6, 0xF2, 0x67, 0x3D}, /* Zeroes encrypted with Master Key 00. */
@ -35,16 +48,17 @@ static const uint8_t mkey_vectors[MASTERKEY_REVISION_MAX][0x10] =
{0xDE, 0xCF, 0xEB, 0xEB, 0x10, 0xAE, 0x74, 0xD8, 0xAD, 0x7C, 0xF4, 0x9E, 0x62, 0xE0, 0xE8, 0x72}, /* Master key 01 encrypted with Master key 02. */
{0x0A, 0x0D, 0xDF, 0x34, 0x22, 0x06, 0x6C, 0xA4, 0xE6, 0xB1, 0xEC, 0x71, 0x85, 0xCA, 0x4E, 0x07}, /* Master key 02 encrypted with Master key 03. */
{0x6E, 0x7D, 0x2D, 0xC3, 0x0F, 0x59, 0xC8, 0xFA, 0x87, 0xA8, 0x2E, 0xD5, 0x89, 0x5E, 0xF3, 0xE9}, /* Master key 03 encrypted with Master key 04. */
{0xEB, 0xF5, 0x6F, 0x83, 0x61, 0x9E, 0xF8, 0xFA, 0xE0, 0x87, 0xD7, 0xA1, 0x4E, 0x25, 0x36, 0xEE}, /* Master key 04 encrypted with Master key 05. */
};
bool check_mkey_revision(unsigned int revision) {
static bool check_mkey_revision(unsigned int revision, bool is_retail) {
uint8_t final_vector[0x10];
unsigned int check_keyslot = KEYSLOT_SWITCH_MASTERKEY;
if (revision > 0) {
/* Generate old master key array. */
for (unsigned int i = revision; i > 0; i--) {
se_aes_ecb_decrypt_block(check_keyslot, g_old_masterkeys[i-1], 0x10, mkey_vectors[i], 0x10);
se_aes_ecb_decrypt_block(check_keyslot, g_old_masterkeys[i-1], 0x10, is_retail ? mkey_vectors[i] : mkey_vectors_dev[i], 0x10);
set_aes_keyslot(KEYSLOT_SWITCH_TEMPKEY, g_old_masterkeys[i-1], 0x10);
check_keyslot = KEYSLOT_SWITCH_TEMPKEY;
}
@ -59,13 +73,13 @@ bool check_mkey_revision(unsigned int revision) {
return true;
}
int mkey_detect_revision(void) {
int mkey_detect_revision(bool is_retail) {
if (g_determined_mkey_revision) {
generic_panic();
}
for (unsigned int rev = 0; rev < MASTERKEY_REVISION_MAX; rev++) {
if (check_mkey_revision(rev)) {
if (check_mkey_revision(rev, is_retail)) {
g_determined_mkey_revision = true;
g_mkey_revision = rev;
break;
@ -105,3 +119,33 @@ unsigned int mkey_get_keyslot(unsigned int revision) {
return KEYSLOT_SWITCH_TEMPKEY;
}
}
void set_old_devkey(unsigned int revision, const uint8_t *key) {
if (revision < MASTERKEY_REVISION_400_410 || MASTERKEY_REVISION_600_CURRENT <= revision) {
generic_panic();
}
memcpy(g_old_devicekeys[revision - MASTERKEY_REVISION_400_410], key, 0x10);
}
unsigned int devkey_get_keyslot(unsigned int revision) {
if (!g_determined_mkey_revision || revision >= MASTERKEY_REVISION_MAX) {
generic_panic();
}
if (revision > g_mkey_revision) {
generic_panic();
}
if (revision >= 1) {
if (revision == MASTERKEY_REVISION_600_CURRENT) {
return KEYSLOT_SWITCH_DEVICEKEY;
} else {
/* Load into a temp keyslot. */
set_aes_keyslot(KEYSLOT_SWITCH_TEMPKEY, g_old_devicekeys[revision - MASTERKEY_REVISION_400_410], 0x10);
return KEYSLOT_SWITCH_TEMPKEY;
}
} else {
return KEYSLOT_SWITCH_4XOLDDEVICEKEY;
}
}

14
fusee/fusee-secondary/src/masterkey.h
View file

@ -19,22 +19,24 @@
/* This is glue code to enable master key support across versions. */
/* TODO: Update to 0x6 on release of new master key. */
#define MASTERKEY_REVISION_MAX 0x5
/* TODO: Update to 0x7 on release of new master key. */
#define MASTERKEY_REVISION_MAX 0x6
#define MASTERKEY_REVISION_100_230 0x00
#define MASTERKEY_REVISION_300 0x01
#define MASTERKEY_REVISION_301_302 0x02
#define MASTERKEY_REVISION_400_410 0x03
#define MASTERKEY_REVISION_500_CURRENT 0x04
#define MASTERKEY_REVISION_500_510 0x04
#define MASTERKEY_REVISION_600_CURRENT 0x05
#define MASTERKEY_NUM_NEW_DEVICE_KEYS (MASTERKEY_REVISION_MAX - MASTERKEY_REVISION_400_410)
/* This should be called during initialization. */
int mkey_detect_revision(void);
/* This should be called early on in initialization. */
int mkey_detect_revision(bool is_retail);
unsigned int mkey_get_revision(void);
unsigned int mkey_get_keyslot(unsigned int revision);
void set_old_devkey(unsigned int revision, const uint8_t *key);
unsigned int devkey_get_keyslot(unsigned int revision);
#endif