keys: Split crypto functions by sysmodule

source/keys/crypto.c

@@ -17,10 +17,13 @@
 
 #include "crypto.h"
 
+#include "../../keygen/tsec_keygen.h"
+
 #include "../config.h"
 #include "../hos/hos.h"
 #include <sec/se.h>
 #include <sec/se_t210.h>
+#include <sec/tsec.h>
 #include <soc/fuse.h>
 #include <utils/util.h>
 
@@ -28,6 +31,27 @@
 
 extern hekate_config h_cfg;
 
+int key_exists(const void *data) {
+    return memcmp(data, "\x00\x00\x00\x00\x00\x00\x00\x00", 8) != 0;
+}
+
+int run_ams_keygen(key_storage_t *keys) {
+    tsec_ctxt_t tsec_ctxt;
+    tsec_ctxt.fw = tsec_keygen;
+    tsec_ctxt.size = sizeof(tsec_keygen);
+    tsec_ctxt.type = TSEC_FW_TYPE_NEW;
+
+    u32 retries = 0;
+    while (tsec_query(keys->temp_key, &tsec_ctxt) < 0) {
+        retries++;
+        if (retries > 15) {
+            return -1;
+        }
+    }
+
+    return 0;
+}
+
 bool check_keyslot_access() {
     u8 test_data[SE_KEY_128_SIZE] = {0};
     const u8 test_ciphertext[SE_KEY_128_SIZE] = {0};
@@ -53,20 +77,8 @@ bool test_rsa_keypair(const void *public_exponent, const void *private_exponent,
     return memcmp(plaintext, work, SE_RSA2048_DIGEST_SIZE) == 0;
 }
 
-bool test_eticket_rsa_keypair(const rsa_keypair_t *keypair) {
-    // Unlike the SSL RSA key, we don't need to check the gmac - we can just verify the public exponent
-    // and test the keypair since we have the modulus
-    if ((byte_swap_32(keypair->public_exponent) != RSA_PUBLIC_EXPONENT) ||
-        (!test_rsa_keypair(&keypair->public_exponent, keypair->private_exponent, keypair->modulus))
-    ) {
-        return false;
-    }
-    return true;
-}
-
 // _mgf1_xor() and rsa_oaep_decode were derived from Atmosphère
-static void _mgf1_xor(void *masked, u32 masked_size, const void *seed, u32 seed_size)
+static void _mgf1_xor(void *masked, u32 masked_size, const void *seed, u32 seed_size) {
-{
     u8 cur_hash[0x20] __attribute__((aligned(4)));
     u8 hash_buf[0xe4] __attribute__((aligned(4)));
 
@@ -132,6 +144,12 @@ u32 rsa_oaep_decode(void *dst, u32 dst_size, const void *label_digest, u32 label
     return msg_size;
 }
 
+void derive_rsa_kek(u32 ks, key_storage_t *keys, void *out_rsa_kek, const void *kekek_source, const void *kek_source, u32 generation, u32 option) {
+    u32 access_key[SE_KEY_128_SIZE / 4] = {0};
+    generate_aes_kek(ks, keys, access_key, kekek_source, generation, option);
+    get_device_unique_data_key(ks, out_rsa_kek, access_key, kek_source);
+}
+
 // Equivalent to spl::GenerateAesKek
 void generate_aes_kek(u32 ks, key_storage_t *keys, void *out_kek, const void *kek_source, u32 generation, u32 option) {
     bool device_unique = GET_IS_DEVICE_UNIQUE(option);
@@ -162,7 +180,7 @@ void load_aes_key(u32 ks, void *out_key, const void *access_key, const void *key
 
 // Equivalent to spl::GenerateAesKey
 void generate_aes_key(u32 ks, key_storage_t *keys, void *out_key, u32 key_size, const void *access_key, const void *key_source) {
-    void *aes_key = keys->temp_key;
+    u32 aes_key[SE_KEY_128_SIZE / 4] = {0};
     load_aes_key(ks, aes_key, access_key, aes_key_generation_source);
     se_aes_key_set(ks, aes_key, SE_KEY_128_SIZE);
     se_aes_crypt_ecb(ks, DECRYPT, out_key, key_size, key_source, key_size);
@@ -175,7 +193,7 @@ void get_device_unique_data_key(u32 ks, void *out_key, const void *access_key, c
 
 // Equivalent to spl::DecryptAesKey.
 void decrypt_aes_key(u32 ks, key_storage_t *keys, void *out_key, const void *key_source, u32 generation, u32 option) {
-    void *access_key = keys->temp_key;
+    u32 access_key[SE_KEY_128_SIZE / 4] = {0};
     generate_aes_kek(ks, keys, access_key, aes_key_decryption_source, generation, option);
     generate_aes_key(ks, keys, out_key, SE_KEY_128_SIZE, access_key, key_source);
 }

source/keys/crypto.h

@@ -17,10 +17,14 @@
 #ifndef _CRYPTO_H_
 #define _CRYPTO_H_
 
+#include "es_types.h"
+
 #include "../hos/hos.h"
 #include <sec/se_t210.h>
 #include <utils/types.h>
 
+#include <string.h>
+
 static const u8 aes_kek_generation_source[0x10] __attribute__((aligned(4))) = {
     0x4D, 0x87, 0x09, 0x86, 0xC4, 0x5D, 0x20, 0x72, 0x2F, 0xBA, 0x10, 0x53, 0xDA, 0x92, 0xE8, 0xA9};
 
@@ -129,13 +133,6 @@ static const u8 secure_data_tweaks[1][0x10] __attribute__((aligned(4))) = {
 
 #define TICKET_SIG_TYPE_RSA2048_SHA256 0x10004
 
-typedef struct {
-    u8 private_exponent[SE_RSA2048_DIGEST_SIZE];
-    u8 modulus[SE_RSA2048_DIGEST_SIZE];
-    u32 public_exponent;
-    u8 reserved[0xC];
-} rsa_keypair_t;
-
 typedef struct {
     u8 master_kek[SE_KEY_128_SIZE];
     u8 data[0x70];
@@ -179,7 +176,7 @@ typedef struct {
         tsec_root_key[SE_KEY_128_SIZE];
     u32 sbk[4];
     keyblob_t keyblob[KB_FIRMWARE_VERSION_600 + 1];
-    rsa_keypair_t eticket_rsa_keypair;
+    eticket_rsa_keypair_t eticket_rsa_keypair;
 } key_storage_t;
 
 typedef enum {
@@ -201,12 +198,17 @@ typedef enum {
 #define GET_SEAL_KEY_INDEX(x) (((x) >> 5) & 7)
 #define GET_IS_DEVICE_UNIQUE(x) ((x) & 1)
 
+int key_exists(const void *data);
+
+int run_ams_keygen(key_storage_t *keys);
+
 bool check_keyslot_access();
 
 bool test_rsa_keypair(const void *public_exponent, const void *private_exponent, const void *modulus);
-bool test_eticket_rsa_keypair(const rsa_keypair_t *keypair);
 u32 rsa_oaep_decode(void *dst, u32 dst_size, const void *label_digest, u32 label_digest_size, u8 *buf, u32 buf_size);
 
+void derive_rsa_kek(u32 ks, key_storage_t *keys, void *out_rsa_kek, const void *kekek_source, const void *kek_source, u32 generation, u32 option);
+
 // Equivalent to spl::GenerateAesKek
 void generate_aes_kek(u32 ks, key_storage_t *keys, void *out_kek, const void *kek_source, u32 generation, u32 option);
 // Equivalent to spl::GenerateAesKey

source/keys/es_crypto.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2022 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 "es_crypto.h"
+
+#include "../config.h"
+
+extern hekate_config h_cfg;
+
+bool test_eticket_rsa_keypair(const eticket_rsa_keypair_t *keypair) {
+    if (byte_swap_32(keypair->public_exponent) != RSA_PUBLIC_EXPONENT)
+        return false;
+    return test_rsa_keypair(&keypair->public_exponent, keypair->private_exponent, keypair->modulus);
+}
+
+void es_derive_rsa_kek_device_unique(key_storage_t *keys, void *out_rsa_kek, u32 generation, bool is_dev) {
+    if ((!h_cfg.t210b01 && !key_exists(keys->device_key)) || (h_cfg.t210b01 && (!key_exists(keys->master_key[0]) || !key_exists(keys->device_key_4x)))) {
+        return;
+    }
+
+    const void *kek_source = is_dev ? eticket_rsa_kek_source_dev : eticket_rsa_kek_source;
+    const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_ES_DEVICE_KEY) | IS_DEVICE_UNIQUE;
+    derive_rsa_kek(KS_AES_ECB, keys, out_rsa_kek, eticket_rsa_kekek_source, kek_source, generation, option);
+}
+
+void es_derive_rsa_kek_legacy(key_storage_t *keys, void *out_rsa_kek) {
+    if (!key_exists(keys->master_key[0])) {
+        return;
+    }
+
+    const u32 generation = 0;
+    const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_ES_DEVICE_KEY) | NOT_DEVICE_UNIQUE;
+    derive_rsa_kek(KS_AES_ECB, keys, out_rsa_kek, eticket_rsa_kekek_source, eticket_rsa_kek_source_legacy, generation, option);
+}
+
+void es_derive_rsa_kek_original(key_storage_t *keys, void *out_rsa_kek, bool is_dev) {
+    if (!key_exists(keys->master_key[0])) {
+        return;
+    }
+
+    const void *kek_source = is_dev ? eticket_rsa_kek_source_dev : eticket_rsa_kek_source;
+    const u32 generation = 0;
+    const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_ES_DEVICE_KEY) | NOT_DEVICE_UNIQUE;
+    derive_rsa_kek(KS_AES_ECB, keys, out_rsa_kek, eticket_rsa_kekek_source, kek_source, generation, option);
+}

source/keys/es_crypto.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2022 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/>.
+ */
+
+#ifndef _ES_CRYPTO_H_
+#define _ES_CRYPTO_H_
+
+#include "crypto.h"
+#include "es_types.h"
+
+#include <utils/types.h>
+
+static const u8 eticket_rsa_kek_source[0x10] __attribute__((aligned(4))) = {
+    0XDB, 0XA4, 0X51, 0X12, 0X4C, 0XA0, 0XA9, 0X83, 0X68, 0X14, 0XF5, 0XED, 0X95, 0XE3, 0X12, 0X5B};
+static const u8 eticket_rsa_kek_source_dev[0x10] __attribute__((aligned(4))) = {
+    0xBE, 0xC0, 0xBC, 0x8E, 0x75, 0xA0, 0xF6, 0x0C, 0x4A, 0x56, 0x64, 0x02, 0x3E, 0xD4, 0x9C, 0xD5};
+static const u8 eticket_rsa_kek_source_legacy[0x10] __attribute__((aligned(4))) = {
+    0x88, 0x87, 0x50, 0x90, 0xA6, 0x2F, 0x75, 0x70, 0xA2, 0xD7, 0x71, 0x51, 0xAE, 0x6D, 0x39, 0x87};
+static const u8 eticket_rsa_kekek_source[0x10] __attribute__((aligned(4))) = {
+    0X46, 0X6E, 0X57, 0XB7, 0X4A, 0X44, 0X7F, 0X02, 0XF3, 0X21, 0XCD, 0XE5, 0X8F, 0X2F, 0X55, 0X35};
+
+bool test_eticket_rsa_keypair(const eticket_rsa_keypair_t *keypair);
+
+void es_derive_rsa_kek_device_unique(key_storage_t *keys, void *out_rsa_kek, u32 generation, bool is_dev);
+void es_derive_rsa_kek_legacy(key_storage_t *keys, void *out_rsa_kek);
+void es_derive_rsa_kek_original(key_storage_t *keys, void *out_rsa_kek, bool is_dev);
+
+#endif

source/keys/es_types.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2022 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/>.
+ */
+
+#ifndef _ES_TYPES_H_
+#define _ES_TYPES_H_
+
+#include <sec/se_t210.h>
+#include <utils/types.h>
+
+typedef struct {
+    u8 private_exponent[SE_RSA2048_DIGEST_SIZE];
+    u8 modulus[SE_RSA2048_DIGEST_SIZE];
+    u32 public_exponent;
+    u8 reserved[0xC];
+} eticket_rsa_keypair_t;
+
+#endif

source/keys/fs_crypto.c

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2022 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 "fs_crypto.h"
+
+#include "../config.h"
+#include <sec/se_t210.h>
+
+#include <string.h>
+
+extern hekate_config h_cfg;
+
+void fs_derive_bis_keys(key_storage_t *keys, u8 out_bis_keys[4][32], u32 generation) {
+    if ((!h_cfg.t210b01 && !key_exists(keys->device_key)) || (h_cfg.t210b01 && (!key_exists(keys->master_key[0]) || !key_exists(keys->device_key_4x)))) {
+        return;
+    }
+
+    generate_specific_aes_key(KS_AES_ECB, keys, out_bis_keys[0], bis_key_sources[0], generation);
+    u32 access_key[SE_KEY_128_SIZE / 4] = {0};
+    const u32 option = IS_DEVICE_UNIQUE;
+    generate_aes_kek(KS_AES_ECB, keys, access_key, bis_kek_source, generation, option);
+    generate_aes_key(KS_AES_ECB, keys, out_bis_keys[1], sizeof(bis_key_sources[1]), access_key, bis_key_sources[1]);
+    generate_aes_key(KS_AES_ECB, keys, out_bis_keys[2], sizeof(bis_key_sources[2]), access_key, bis_key_sources[2]);
+    memcpy(out_bis_keys[3], out_bis_keys[2], sizeof(bis_key_sources[2]));
+}
+
+void fs_derive_header_key(key_storage_t *keys, void *out_key) {
+    if (!key_exists(keys->master_key[0])) {
+        return;
+    }
+
+    u32 access_key[SE_KEY_128_SIZE / 4] = {0};
+    const u32 generation = 0;
+    const u32 option = NOT_DEVICE_UNIQUE;
+    generate_aes_kek(KS_AES_ECB, keys, access_key, header_kek_source, generation, option);
+    generate_aes_key(KS_AES_ECB, keys, out_key, sizeof(header_key_source), access_key, header_key_source);
+}
+
+void fs_derive_key_area_key(key_storage_t *keys, void *out_key, u32 source_type, u32 generation) {
+    u32 access_key[SE_KEY_128_SIZE / 4] = {0};
+    const u32 option = NOT_DEVICE_UNIQUE;
+    generate_aes_kek(KS_AES_ECB, keys, access_key, key_area_key_sources[source_type], generation + 1, option);
+    load_aes_key(KS_AES_ECB, out_key, access_key, aes_key_generation_source);
+}
+
+void fs_derive_save_mac_key(key_storage_t *keys, void *out_key) {
+    if ((!h_cfg.t210b01 && !key_exists(keys->device_key)) || (h_cfg.t210b01 && (!key_exists(keys->master_key[0]) || !key_exists(keys->device_key_4x)))) {
+        return;
+    }
+
+    u32 access_key[SE_KEY_128_SIZE / 4] = {0};
+    const u32 generation = 0;
+    const u32 option = IS_DEVICE_UNIQUE;
+    generate_aes_kek(KS_AES_ECB, keys, access_key, save_mac_kek_source, generation, option);
+    load_aes_key(KS_AES_ECB, out_key, access_key, save_mac_key_source);
+}

source/keys/fs_crypto.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2022 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/>.
+ */
+
+#ifndef _FS_CRYPTO_H_
+#define _FS_CRYPTO_H_
+
+#include "crypto.h"
+
+#include <utils/types.h>
+
+static const u8 bis_kek_source[0x10] __attribute__((aligned(4))) = {
+    0x34, 0xC1, 0xA0, 0xC4, 0x82, 0x58, 0xF8, 0xB4, 0xFA, 0x9E, 0x5E, 0x6A, 0xDA, 0xFC, 0x7E, 0x4F};
+static const u8 bis_key_sources[3][0x20] __attribute__((aligned(4))) = {
+    {0xF8, 0x3F, 0x38, 0x6E, 0x2C, 0xD2, 0xCA, 0x32, 0xA8, 0x9A, 0xB9, 0xAA, 0x29, 0xBF, 0xC7, 0x48,
+     0x7D, 0x92, 0xB0, 0x3A, 0xA8, 0xBF, 0xDE, 0xE1, 0xA7, 0x4C, 0x3B, 0x6E, 0x35, 0xCB, 0x71, 0x06},
+    {0x41, 0x00, 0x30, 0x49, 0xDD, 0xCC, 0xC0, 0x65, 0x64, 0x7A, 0x7E, 0xB4, 0x1E, 0xED, 0x9C, 0x5F,
+     0x44, 0x42, 0x4E, 0xDA, 0xB4, 0x9D, 0xFC, 0xD9, 0x87, 0x77, 0x24, 0x9A, 0xDC, 0x9F, 0x7C, 0xA4},
+    {0x52, 0xC2, 0xE9, 0xEB, 0x09, 0xE3, 0xEE, 0x29, 0x32, 0xA1, 0x0C, 0x1F, 0xB6, 0xA0, 0x92, 0x6C,
+     0x4D, 0x12, 0xE1, 0x4B, 0x2A, 0x47, 0x4C, 0x1C, 0x09, 0xCB, 0x03, 0x59, 0xF0, 0x15, 0xF4, 0xE4}
+};
+
+static const u8 header_kek_source[0x10] __attribute__((aligned(4))) = {
+    0x1F, 0x12, 0x91, 0x3A, 0x4A, 0xCB, 0xF0, 0x0D, 0x4C, 0xDE, 0x3A, 0xF6, 0xD5, 0x23, 0x88, 0x2A};
+static const u8 header_key_source[0x20] __attribute__((aligned(4))) = {
+    0x5A, 0x3E, 0xD8, 0x4F, 0xDE, 0xC0, 0xD8, 0x26, 0x31, 0xF7, 0xE2, 0x5D, 0x19, 0x7B, 0xF5, 0xD0,
+    0x1C, 0x9B, 0x7B, 0xFA, 0xF6, 0x28, 0x18, 0x3D, 0x71, 0xF6, 0x4D, 0x73, 0xF1, 0x50, 0xB9, 0xD2};
+
+static const u8 key_area_key_sources[3][0x10] __attribute__((aligned(4))) = {
+    {0x7F, 0x59, 0x97, 0x1E, 0x62, 0x9F, 0x36, 0xA1, 0x30, 0x98, 0x06, 0x6F, 0x21, 0x44, 0xC3, 0x0D}, // application
+    {0x32, 0x7D, 0x36, 0x08, 0x5A, 0xD1, 0x75, 0x8D, 0xAB, 0x4E, 0x6F, 0xBA, 0xA5, 0x55, 0xD8, 0x82}, // ocean
+    {0x87, 0x45, 0xF1, 0xBB, 0xA6, 0xBE, 0x79, 0x64, 0x7D, 0x04, 0x8B, 0xA6, 0x7B, 0x5F, 0xDA, 0x4A}, // system
+};
+
+static const u8 save_mac_kek_source[0x10] __attribute__((aligned(4))) = {
+    0XD8, 0X9C, 0X23, 0X6E, 0XC9, 0X12, 0X4E, 0X43, 0XC8, 0X2B, 0X03, 0X87, 0X43, 0XF9, 0XCF, 0X1B};
+static const u8 save_mac_key_source[0x10] __attribute__((aligned(4))) = {
+    0XE4, 0XCD, 0X3D, 0X4A, 0XD5, 0X0F, 0X74, 0X28, 0X45, 0XA4, 0X87, 0XE5, 0XA0, 0X63, 0XEA, 0X1F};
+
+static const u8 save_mac_sd_card_kek_source[0x10] __attribute__((aligned(4))) = {
+    0X04, 0X89, 0XEF, 0X5D, 0X32, 0X6E, 0X1A, 0X59, 0XC4, 0XB7, 0XAB, 0X8C, 0X36, 0X7A, 0XAB, 0X17};
+static const u8 save_mac_sd_card_key_source[0x10] __attribute__((aligned(4))) = {
+    0X6F, 0X64, 0X59, 0X47, 0XC5, 0X61, 0X46, 0XF9, 0XFF, 0XA0, 0X45, 0XD5, 0X95, 0X33, 0X29, 0X18};
+
+static const u8 sd_card_custom_storage_key_source[0x20] __attribute__((aligned(4))) = {
+    0X37, 0X0C, 0X34, 0X5E, 0X12, 0XE4, 0XCE, 0XFE, 0X21, 0XB5, 0X8E, 0X64, 0XDB, 0X52, 0XAF, 0X35,
+    0X4F, 0X2C, 0XA5, 0XA3, 0XFC, 0X99, 0X9A, 0X47, 0XC0, 0X3E, 0XE0, 0X04, 0X48, 0X5B, 0X2F, 0XD0};
+static const u8 sd_card_kek_source[0x10] __attribute__((aligned(4))) = {
+    0X88, 0X35, 0X8D, 0X9C, 0X62, 0X9B, 0XA1, 0XA0, 0X01, 0X47, 0XDB, 0XE0, 0X62, 0X1B, 0X54, 0X32};
+static const u8 sd_card_nca_key_source[0x20] __attribute__((aligned(4))) = {
+    0X58, 0X41, 0XA2, 0X84, 0X93, 0X5B, 0X56, 0X27, 0X8B, 0X8E, 0X1F, 0XC5, 0X18, 0XE9, 0X9F, 0X2B,
+    0X67, 0XC7, 0X93, 0XF0, 0XF2, 0X4F, 0XDE, 0XD0, 0X75, 0X49, 0X5D, 0XCA, 0X00, 0X6D, 0X99, 0XC2};
+static const u8 sd_card_save_key_source[0x20] __attribute__((aligned(4))) = {
+    0X24, 0X49, 0XB7, 0X22, 0X72, 0X67, 0X03, 0XA8, 0X19, 0X65, 0XE6, 0XE3, 0XEA, 0X58, 0X2F, 0XDD,
+    0X9A, 0X95, 0X15, 0X17, 0XB1, 0X6E, 0X8F, 0X7F, 0X1F, 0X68, 0X26, 0X31, 0X52, 0XEA, 0X29, 0X6A};
+
+void fs_derive_bis_keys(key_storage_t *keys, u8 out_bis_keys[4][32], u32 generation);
+void fs_derive_header_key(key_storage_t *keys, void *out_key);
+void fs_derive_key_area_key(key_storage_t *keys, void *out_key, u32 source_type, u32 generation);
+void fs_derive_save_mac_key(key_storage_t *keys, void *out_key);
+
+#endif

source/keys/key_sources.inl

@@ -19,16 +19,6 @@ static const u8 null_hash[0x20] __attribute__((aligned(4))) = {
     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};
 
-static const u8 keyblob_key_sources[][0x10] __attribute__((aligned(4))) = {
-    {0xDF, 0x20, 0x6F, 0x59, 0x44, 0x54, 0xEF, 0xDC, 0x70, 0x74, 0x48, 0x3B, 0x0D, 0xED, 0x9F, 0xD3}, //1.0.0
-    {0x0C, 0x25, 0x61, 0x5D, 0x68, 0x4C, 0xEB, 0x42, 0x1C, 0x23, 0x79, 0xEA, 0x82, 0x25, 0x12, 0xAC}, //3.0.0
-    {0x33, 0x76, 0x85, 0xEE, 0x88, 0x4A, 0xAE, 0x0A, 0xC2, 0x8A, 0xFD, 0x7D, 0x63, 0xC0, 0x43, 0x3B}, //3.0.1
-    {0x2D, 0x1F, 0x48, 0x80, 0xED, 0xEC, 0xED, 0x3E, 0x3C, 0xF2, 0x48, 0xB5, 0x65, 0x7D, 0xF7, 0xBE}, //4.0.0
-    {0xBB, 0x5A, 0x01, 0xF9, 0x88, 0xAF, 0xF5, 0xFC, 0x6C, 0xFF, 0x07, 0x9E, 0x13, 0x3C, 0x39, 0x80}, //5.0.0
-    {0xD8, 0xCC, 0xE1, 0x26, 0x6A, 0x35, 0x3F, 0xCC, 0x20, 0xF3, 0x2D, 0x3B, 0x51, 0x7D, 0xE9, 0xC0}  //6.0.0
-};
-
-//!TODO: Update on mkey changes.
 static const u8 master_kek_sources[KB_FIRMWARE_VERSION_MAX - KB_FIRMWARE_VERSION_620 + 1][0x10] __attribute__((aligned(4))) = {
     {0x37, 0x4B, 0x77, 0x29, 0x59, 0xB4, 0x04, 0x30, 0x81, 0xF6, 0xE5, 0x8C, 0x6D, 0x36, 0x17, 0x9A}, //6.2.0
     {0x9A, 0x3E, 0xA9, 0xAB, 0xFD, 0x56, 0x46, 0x1C, 0x9B, 0xF6, 0x48, 0x7F, 0x5C, 0xFA, 0x09, 0x5C}, //7.0.0
@@ -39,9 +29,8 @@ static const u8 master_kek_sources[KB_FIRMWARE_VERSION_MAX - KB_FIRMWARE_VERSION
     {0x68, 0x3B, 0xCA, 0x54, 0xB8, 0x6F, 0x92, 0x48, 0xC3, 0x05, 0x76, 0x87, 0x88, 0x70, 0x79, 0x23}, //13.0.0
     {0xF0, 0x13, 0x37, 0x9A, 0xD5, 0x63, 0x51, 0xC3, 0xB4, 0x96, 0x35, 0xBC, 0x9C, 0xE8, 0x76, 0x81}, //14.0.0
     {0x6E, 0x77, 0x86, 0xAC, 0x83, 0x0A, 0x8D, 0x3E, 0x7D, 0xB7, 0x66, 0xA0, 0x22, 0xB7, 0x6E, 0x67}, //15.0.0
-};
+}; //!TODO: Update on mkey changes.
 
-//!TODO: Update on mkey changes.
 static const u8 master_key_vectors[KB_FIRMWARE_VERSION_MAX + 1][0x10] __attribute__((aligned(4))) = {
     {0x0C, 0xF0, 0x59, 0xAC, 0x85, 0xF6, 0x26, 0x65, 0xE1, 0xE9, 0x19, 0x55, 0xE6, 0xF2, 0x67, 0x3D}, /* Zeroes encrypted with Master Key 00. */
     {0x29, 0x4C, 0x04, 0xC8, 0xEB, 0x10, 0xED, 0x9D, 0x51, 0x64, 0x97, 0xFB, 0xF3, 0x4D, 0x50, 0xDD}, /* Master key 00 encrypted with Master key 01. */
@@ -58,9 +47,8 @@ static const u8 master_key_vectors[KB_FIRMWARE_VERSION_MAX + 1][0x10] __attribut
     {0xA3, 0x24, 0x65, 0x75, 0xEA, 0xCC, 0x6E, 0x8D, 0xFB, 0x5A, 0x16, 0x50, 0x74, 0xD2, 0x15, 0x06}, /* Master key 0B encrypted with Master key 0C. */
     {0x83, 0x67, 0xAF, 0x01, 0xCF, 0x93, 0xA1, 0xAB, 0x80, 0x45, 0xF7, 0x3F, 0x72, 0xFD, 0x3B, 0x38}, /* Master key 0C encrypted with Master key 0D. */
     {0xB1, 0x81, 0xA6, 0x0D, 0x72, 0xC7, 0xEE, 0x15, 0x21, 0xF3, 0xC0, 0xB5, 0x6B, 0x61, 0x6D, 0xE7}, /* Master key 0D encrypted with Master key 0E. */
-};
+}; //!TODO: Update on mkey changes.
 
-//!TODO: Update on mkey changes.
 static const u8 master_key_vectors_dev[KB_FIRMWARE_VERSION_MAX + 1][0x10] __attribute__((aligned(4))) = {
     {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. */
@@ -77,7 +65,7 @@ static const u8 master_key_vectors_dev[KB_FIRMWARE_VERSION_MAX + 1][0x10] __attr
     {0x8A, 0xCE, 0xC4, 0x7F, 0xBE, 0x08, 0x61, 0x88, 0xD3, 0x73, 0x64, 0x51, 0xE2, 0xB6, 0x53, 0x15}, /* Master key 0B encrypted with Master key 0C. */
     {0x08, 0xE0, 0xF4, 0xBE, 0xAA, 0x6E, 0x5A, 0xC3, 0xA6, 0xBC, 0xFE, 0xB9, 0xE2, 0xA3, 0x24, 0x12}, /* Master key 0C encrypted with Master key 0D. */
     {0xD6, 0x80, 0x98, 0xC0, 0xFA, 0xC7, 0x13, 0xCB, 0x93, 0xD2, 0x0B, 0x82, 0x4C, 0xA1, 0x7B, 0x8D}, /* Master key 0D encrypted with Master key 0E. */
-};
+}; //!TODO: Update on mkey changes.
 
 static const u8 mariko_key_vectors[][0x10] __attribute__((aligned(4))) = {
     {0x20, 0x9E, 0x97, 0xAE, 0xAF, 0x7E, 0x6A, 0xF6, 0x9E, 0xF5, 0xA7, 0x17, 0x2F, 0xF4, 0x49, 0xA6}, /* Zeroes encrypted with AES Class Key 00. */
@@ -96,16 +84,22 @@ static const u8 mariko_key_vectors[][0x10] __attribute__((aligned(4))) = {
     {0x95, 0x48, 0xC1, 0x59, 0x0F, 0x84, 0x19, 0xC4, 0xAB, 0x69, 0x05, 0x88, 0x01, 0x31, 0x52, 0x59}, /* Zeroes encrypted with Mariko BEK. */
 };
 
-//======================================Keys======================================//
-// from Package1 -> Secure_Monitor
 static const u8 package2_key_source[0x10] __attribute__((aligned(4))) = {
     0xFB, 0x8B, 0x6A, 0x9C, 0x79, 0x00, 0xC8, 0x49, 0xEF, 0xD2, 0x4D, 0x85, 0x4D, 0x30, 0xA0, 0xC7};
 static const u8 titlekek_source[0x10] __attribute__((aligned(4))) = {
     0x1E, 0xDC, 0x7B, 0x3B, 0x60, 0xE6, 0xB4, 0xD8, 0x78, 0xB8, 0x17, 0x15, 0x98, 0x5E, 0x62, 0x9B};
 
-// from Package1ldr (or Secure_Monitor on 6.2.0+)
+static const u8 keyblob_key_sources[][0x10] __attribute__((aligned(4))) = {
+    {0xDF, 0x20, 0x6F, 0x59, 0x44, 0x54, 0xEF, 0xDC, 0x70, 0x74, 0x48, 0x3B, 0x0D, 0xED, 0x9F, 0xD3}, //1.0.0
+    {0x0C, 0x25, 0x61, 0x5D, 0x68, 0x4C, 0xEB, 0x42, 0x1C, 0x23, 0x79, 0xEA, 0x82, 0x25, 0x12, 0xAC}, //3.0.0
+    {0x33, 0x76, 0x85, 0xEE, 0x88, 0x4A, 0xAE, 0x0A, 0xC2, 0x8A, 0xFD, 0x7D, 0x63, 0xC0, 0x43, 0x3B}, //3.0.1
+    {0x2D, 0x1F, 0x48, 0x80, 0xED, 0xEC, 0xED, 0x3E, 0x3C, 0xF2, 0x48, 0xB5, 0x65, 0x7D, 0xF7, 0xBE}, //4.0.0
+    {0xBB, 0x5A, 0x01, 0xF9, 0x88, 0xAF, 0xF5, 0xFC, 0x6C, 0xFF, 0x07, 0x9E, 0x13, 0x3C, 0x39, 0x80}, //5.0.0
+    {0xD8, 0xCC, 0xE1, 0x26, 0x6A, 0x35, 0x3F, 0xCC, 0x20, 0xF3, 0x2D, 0x3B, 0x51, 0x7D, 0xE9, 0xC0}  //6.0.0
+};
 static const u8 keyblob_mac_key_source[0x10] __attribute__((aligned(4))) = {
     0x59, 0xC7, 0xFB, 0x6F, 0xBE, 0x9B, 0xBE, 0x87, 0x65, 0x6B, 0x15, 0xC0, 0x53, 0x73, 0x36, 0xA5};
+
 static const u8 master_key_source[0x10] __attribute__((aligned(4))) = {
     0xD8, 0xA2, 0x41, 0x0A, 0xC6, 0xC5, 0x90, 0x01, 0xC6, 0x1D, 0x6A, 0x26, 0x7C, 0x51, 0x3F, 0x3C};
 static const u8 per_console_key_source[0x10] __attribute__((aligned(4))) = {
@@ -136,96 +130,3 @@ static const u8 mariko_master_kek_sources_dev[KB_FIRMWARE_VERSION_MAX - KB_FIRMW
     {0xEC, 0x5E, 0xB5, 0x11, 0xD5, 0x43, 0x1E, 0x6A, 0x4E, 0x54, 0x6F, 0xD4, 0xD3, 0x22, 0xCE, 0x87}, // 14.0.0.
     {0x18, 0xA5, 0x6F, 0xEF, 0x72, 0x11, 0x62, 0xC5, 0x1A, 0x14, 0xF1, 0x8C, 0x21, 0x83, 0x27, 0xB7}, // 15.0.0.
 }; //!TODO: Update on mkey changes.
-
-// from ES
-static const u8 eticket_rsa_kek_source[0x10] __attribute__((aligned(4))) = {
-    0XDB, 0XA4, 0X51, 0X12, 0X4C, 0XA0, 0XA9, 0X83, 0X68, 0X14, 0XF5, 0XED, 0X95, 0XE3, 0X12, 0X5B};
-static const u8 eticket_rsa_kek_source_dev[0x10] __attribute__((aligned(4))) = {
-    0xBE, 0xC0, 0xBC, 0x8E, 0x75, 0xA0, 0xF6, 0x0C, 0x4A, 0x56, 0x64, 0x02, 0x3E, 0xD4, 0x9C, 0xD5};
-static const u8 eticket_rsa_kek_source_legacy[0x10] __attribute__((aligned(4))) = {
-    0x88, 0x87, 0x50, 0x90, 0xA6, 0x2F, 0x75, 0x70, 0xA2, 0xD7, 0x71, 0x51, 0xAE, 0x6D, 0x39, 0x87};
-static const u8 eticket_rsa_kekek_source[0x10] __attribute__((aligned(4))) = {
-    0X46, 0X6E, 0X57, 0XB7, 0X4A, 0X44, 0X7F, 0X02, 0XF3, 0X21, 0XCD, 0XE5, 0X8F, 0X2F, 0X55, 0X35};
-
-// from SSL
-static const u8 ssl_rsa_kekek_source[0x10] __attribute__((aligned(4))) = {
-    0X7F, 0X5B, 0XB0, 0X84, 0X7B, 0X25, 0XAA, 0X67, 0XFA, 0XC8, 0X4B, 0XE2, 0X3D, 0X7B, 0X69, 0X03};
-static const u8 ssl_rsa_kek_source[0x10] __attribute__((aligned(4))) = {
-    0X9A, 0X38, 0X3B, 0XF4, 0X31, 0XD0, 0XBD, 0X81, 0X32, 0X53, 0X4B, 0XA9, 0X64, 0X39, 0X7D, 0XE3};
-static const u8 ssl_rsa_kek_source_dev[0x10] __attribute__((aligned(4))) = {
-    0xD5, 0xD2, 0xFC, 0x00, 0xFD, 0x49, 0xDD, 0xF8, 0xEE, 0x7B, 0xC4, 0x4B, 0xE1, 0x4C, 0xAA, 0x99};
-static const u8 ssl_rsa_kek_source_legacy[0x10] __attribute__((aligned(4))) = {
-    0xED, 0x36, 0xB1, 0x32, 0x27, 0x17, 0xD2, 0xB0, 0xBA, 0x1F, 0xC1, 0xBD, 0x4D, 0x38, 0x0F, 0x5E};
-static const u8 ssl_client_cert_kek_source[0x10] __attribute__((aligned(4))) = {
-    0x64, 0xB8, 0x30, 0xDD, 0x0F, 0x3C, 0xB7, 0xFB, 0x4C, 0x16, 0x01, 0x97, 0xEA, 0x9D, 0x12, 0x10};
-static const u8 ssl_client_cert_key_source[0x10] __attribute__((aligned(4))) = {
-    0x4D, 0x92, 0x5A, 0x69, 0x42, 0x23, 0xBB, 0x92, 0x59, 0x16, 0x3E, 0x51, 0x8C, 0x78, 0x14, 0x0F};
-
-// from FS
-static const u8 bis_kek_source[0x10] __attribute__((aligned(4))) = {
-    0x34, 0xC1, 0xA0, 0xC4, 0x82, 0x58, 0xF8, 0xB4, 0xFA, 0x9E, 0x5E, 0x6A, 0xDA, 0xFC, 0x7E, 0x4F};
-static const u8 bis_key_sources[3][0x20] __attribute__((aligned(4))) = {
-    {0xF8, 0x3F, 0x38, 0x6E, 0x2C, 0xD2, 0xCA, 0x32, 0xA8, 0x9A, 0xB9, 0xAA, 0x29, 0xBF, 0xC7, 0x48,
-     0x7D, 0x92, 0xB0, 0x3A, 0xA8, 0xBF, 0xDE, 0xE1, 0xA7, 0x4C, 0x3B, 0x6E, 0x35, 0xCB, 0x71, 0x06},
-    {0x41, 0x00, 0x30, 0x49, 0xDD, 0xCC, 0xC0, 0x65, 0x64, 0x7A, 0x7E, 0xB4, 0x1E, 0xED, 0x9C, 0x5F,
-     0x44, 0x42, 0x4E, 0xDA, 0xB4, 0x9D, 0xFC, 0xD9, 0x87, 0x77, 0x24, 0x9A, 0xDC, 0x9F, 0x7C, 0xA4},
-    {0x52, 0xC2, 0xE9, 0xEB, 0x09, 0xE3, 0xEE, 0x29, 0x32, 0xA1, 0x0C, 0x1F, 0xB6, 0xA0, 0x92, 0x6C,
-     0x4D, 0x12, 0xE1, 0x4B, 0x2A, 0x47, 0x4C, 0x1C, 0x09, 0xCB, 0x03, 0x59, 0xF0, 0x15, 0xF4, 0xE4}
-};
-static const u8 header_kek_source[0x10] __attribute__((aligned(4))) = {
-    0x1F, 0x12, 0x91, 0x3A, 0x4A, 0xCB, 0xF0, 0x0D, 0x4C, 0xDE, 0x3A, 0xF6, 0xD5, 0x23, 0x88, 0x2A};
-static const u8 header_key_source[0x20] __attribute__((aligned(4))) = {
-    0x5A, 0x3E, 0xD8, 0x4F, 0xDE, 0xC0, 0xD8, 0x26, 0x31, 0xF7, 0xE2, 0x5D, 0x19, 0x7B, 0xF5, 0xD0,
-    0x1C, 0x9B, 0x7B, 0xFA, 0xF6, 0x28, 0x18, 0x3D, 0x71, 0xF6, 0x4D, 0x73, 0xF1, 0x50, 0xB9, 0xD2};
-static const u8 key_area_key_sources[3][0x10] __attribute__((aligned(4))) = {
-    {0x7F, 0x59, 0x97, 0x1E, 0x62, 0x9F, 0x36, 0xA1, 0x30, 0x98, 0x06, 0x6F, 0x21, 0x44, 0xC3, 0x0D}, // application
-    {0x32, 0x7D, 0x36, 0x08, 0x5A, 0xD1, 0x75, 0x8D, 0xAB, 0x4E, 0x6F, 0xBA, 0xA5, 0x55, 0xD8, 0x82}, // ocean
-    {0x87, 0x45, 0xF1, 0xBB, 0xA6, 0xBE, 0x79, 0x64, 0x7D, 0x04, 0x8B, 0xA6, 0x7B, 0x5F, 0xDA, 0x4A}, // system
-};
-static const u8 save_mac_kek_source[0x10] __attribute__((aligned(4))) = {
-    0XD8, 0X9C, 0X23, 0X6E, 0XC9, 0X12, 0X4E, 0X43, 0XC8, 0X2B, 0X03, 0X87, 0X43, 0XF9, 0XCF, 0X1B};
-static const u8 save_mac_key_source[0x10] __attribute__((aligned(4))) = {
-    0XE4, 0XCD, 0X3D, 0X4A, 0XD5, 0X0F, 0X74, 0X28, 0X45, 0XA4, 0X87, 0XE5, 0XA0, 0X63, 0XEA, 0X1F};
-static const u8 save_mac_sd_card_kek_source[0x10] __attribute__((aligned(4))) = {
-    0X04, 0X89, 0XEF, 0X5D, 0X32, 0X6E, 0X1A, 0X59, 0XC4, 0XB7, 0XAB, 0X8C, 0X36, 0X7A, 0XAB, 0X17};
-static const u8 save_mac_sd_card_key_source[0x10] __attribute__((aligned(4))) = {
-    0X6F, 0X64, 0X59, 0X47, 0XC5, 0X61, 0X46, 0XF9, 0XFF, 0XA0, 0X45, 0XD5, 0X95, 0X33, 0X29, 0X18};
-static const u8 sd_card_custom_storage_key_source[0x20] __attribute__((aligned(4))) = {
-    0X37, 0X0C, 0X34, 0X5E, 0X12, 0XE4, 0XCE, 0XFE, 0X21, 0XB5, 0X8E, 0X64, 0XDB, 0X52, 0XAF, 0X35,
-    0X4F, 0X2C, 0XA5, 0XA3, 0XFC, 0X99, 0X9A, 0X47, 0XC0, 0X3E, 0XE0, 0X04, 0X48, 0X5B, 0X2F, 0XD0};
-static const u8 sd_card_kek_source[0x10] __attribute__((aligned(4))) = {
-    0X88, 0X35, 0X8D, 0X9C, 0X62, 0X9B, 0XA1, 0XA0, 0X01, 0X47, 0XDB, 0XE0, 0X62, 0X1B, 0X54, 0X32};
-static const u8 sd_card_nca_key_source[0x20] __attribute__((aligned(4))) = {
-    0X58, 0X41, 0XA2, 0X84, 0X93, 0X5B, 0X56, 0X27, 0X8B, 0X8E, 0X1F, 0XC5, 0X18, 0XE9, 0X9F, 0X2B,
-    0X67, 0XC7, 0X93, 0XF0, 0XF2, 0X4F, 0XDE, 0XD0, 0X75, 0X49, 0X5D, 0XCA, 0X00, 0X6D, 0X99, 0XC2};
-static const u8 sd_card_save_key_source[0x20] __attribute__((aligned(4))) = {
-    0X24, 0X49, 0XB7, 0X22, 0X72, 0X67, 0X03, 0XA8, 0X19, 0X65, 0XE6, 0XE3, 0XEA, 0X58, 0X2F, 0XDD,
-    0X9A, 0X95, 0X15, 0X17, 0XB1, 0X6E, 0X8F, 0X7F, 0X1F, 0X68, 0X26, 0X31, 0X52, 0XEA, 0X29, 0X6A};
-
-// from NFC
-static const u8 nfc_key_source[0x10] __attribute__((aligned(4))) = {
-    0x83, 0xF6, 0xEF, 0xD8, 0x13, 0x26, 0x49, 0xAB, 0x97, 0x5F, 0xEA, 0xBA, 0x65, 0x71, 0xCA, 0xCA};
-static const u8 encrypted_nfc_keys[0x80] __attribute__((aligned(4))) = {
-    0x76, 0x50, 0x87, 0x02, 0x40, 0xA6, 0x5A, 0x98, 0xCE, 0x39, 0x2F, 0xC8, 0x83, 0xAF, 0x54, 0x76,
-    0x28, 0xFF, 0x50, 0xFC, 0xC1, 0xFB, 0x26, 0x14, 0xA2, 0x4A, 0xA6, 0x74, 0x90, 0xA4, 0x37, 0x06,
-    0x03, 0x63, 0xC2, 0xB1, 0xAF, 0x9F, 0xF7, 0x07, 0xFC, 0x8A, 0xB9, 0xCA, 0x28, 0x68, 0x6E, 0xF7,
-    0x42, 0xCD, 0x68, 0x13, 0xCD, 0x7B, 0x3A, 0x60, 0x3E, 0x8B, 0xAB, 0x3A, 0xCC, 0xED, 0xE0, 0xDD,
-    0x71, 0x1F, 0xA5, 0xDE, 0xB8, 0xB1, 0xF5, 0x1D, 0x14, 0x73, 0xBE, 0x27, 0xCC, 0xA1, 0x9B, 0x23,
-    0x06, 0x91, 0x89, 0x05, 0xED, 0xD6, 0x92, 0x76, 0x3F, 0x42, 0xFB, 0xD1, 0x8F, 0x2D, 0x6D, 0x72,
-    0xC8, 0x9E, 0x48, 0xE8, 0x03, 0x64, 0xF0, 0x3C, 0x0E, 0x2A, 0xF1, 0x26, 0x83, 0x02, 0x4F, 0xE2,
-    0x41, 0xAA, 0xC8, 0x33, 0x68, 0x84, 0x3A, 0xFB, 0x87, 0x18, 0xEA, 0xF7, 0x36, 0xA2, 0x4E, 0xA9};
-static const u8 encrypted_nfc_keys_dev[0x80] __attribute__((aligned(4))) = {
-    0x13, 0xB0, 0xFB, 0xC2, 0x91, 0x6D, 0x6E, 0x5A, 0x10, 0x31, 0x40, 0xB7, 0xDF, 0xCF, 0x69, 0x69,
-    0xB0, 0xFA, 0xAE, 0x7F, 0xB2, 0x4D, 0x27, 0xC9, 0xE9, 0x3F, 0x5B, 0x38, 0x39, 0x24, 0x98, 0xCE,
-    0xED, 0xD2, 0xA9, 0x6C, 0x6F, 0xA7, 0x72, 0xD7, 0x11, 0x31, 0x17, 0x93, 0x12, 0x49, 0x32, 0x85,
-    0x21, 0xE5, 0xE1, 0x88, 0x0F, 0x08, 0xF2, 0x30, 0x5C, 0xC3, 0xAA, 0xFF, 0xC0, 0xAB, 0x21, 0x96,
-    0x74, 0x39, 0xED, 0xE0, 0x5A, 0xB6, 0x75, 0xC2, 0x3B, 0x08, 0x61, 0xE4, 0xA7, 0xD6, 0xED, 0x8C,
-    0xA9, 0x02, 0x12, 0xA6, 0xCC, 0x27, 0x4C, 0x1C, 0x41, 0x9C, 0xD8, 0x4C, 0x00, 0xC7, 0x5B, 0x5D,
-    0xED, 0xC2, 0x3D, 0x5E, 0x00, 0xF5, 0x49, 0xFA, 0x6C, 0x75, 0x67, 0xCF, 0x1F, 0x73, 0x1A, 0xE8,
-    0x47, 0xD4, 0x3D, 0x9B, 0x83, 0x5B, 0x18, 0x2F, 0x95, 0xA9, 0x04, 0xBC, 0x2E, 0xBB, 0x64, 0x4A};
-static const u8 nfc_blob_hash[0x20] __attribute__((aligned(4))) = {
-    0x7F, 0x92, 0x83, 0x65, 0x4E, 0xC1, 0x09, 0x7F, 0xBD, 0xFF, 0x31, 0xDE, 0x94, 0x66, 0x51, 0xAE,
-    0x60, 0xC2, 0x85, 0x4A, 0xFB, 0x54, 0x4A, 0xBE, 0x89, 0x63, 0xD3, 0x89, 0x63, 0x9C, 0x71, 0x0E};
-static const u8 nfc_blob_hash_dev[0x20] __attribute__((aligned(4))) = {
-    0x4E, 0x36, 0x59, 0x1C, 0x75, 0x80, 0x23, 0x03, 0x98, 0x2D, 0x45, 0xD9, 0x85, 0xB8, 0x60, 0x18,
-    0x7C, 0x85, 0x37, 0x9B, 0xCB, 0xBA, 0xF3, 0xDC, 0x25, 0x38, 0x73, 0xDB, 0x2F, 0xFA, 0xAE, 0x26};

source/keys/keys.c

@@ -17,9 +17,11 @@
 #include "keys.h"
 
 #include "cal0_read.h"
+#include "es_crypto.h"
+#include "fs_crypto.h"
 #include "gmac.h"
-
+#include "nfc_crypto.h"
-#include "../../keygen/tsec_keygen.h"
+#include "ssl_crypto.h"
 
 #include "../config.h"
 #include <display/di.h>
@@ -35,9 +37,7 @@
 #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"
@@ -59,49 +59,49 @@ static u32 _key_count = 0, _titlekey_count = 0;
 static u32 start_time, end_time;
 u32 color_idx = 0;
 
-// key functions
+static void _save_key(const char *name, const void *data, u32 len, char *outbuf) {
-static int  _key_exists(const void *data) { return memcmp(data, "\x00\x00\x00\x00\x00\x00\x00\x00", 8) != 0; };
+    if (!key_exists(data))
-static void _save_key(const char *name, const void *data, u32 len, char *outbuf);
+        return;
-static void _save_key_family(const char *name, const void *data, u32 start_key, u32 num_keys, u32 len, char *outbuf);
+    u32 pos = strlen(outbuf);
+    pos += s_printf(&outbuf[pos], "%s = ", name);
+    for (u32 i = 0; i < len; i++)
+        pos += s_printf(&outbuf[pos], "%02x", *(u8*)(data + i));
+    s_printf(&outbuf[pos], "\n");
+    _key_count++;
+}
 
-static void _derive_master_key_mariko(key_storage_t *keys, bool is_dev) {
+static void _save_key_family(const char *name, const void *data, u32 start_key, u32 num_keys, u32 len, char *outbuf) {
+    char *temp_name = calloc(1, 0x40);
+    for (u32 i = 0; i < num_keys; i++) {
+        s_printf(temp_name, "%s_%02x", name, i + start_key);
+        _save_key(temp_name, data + i * len, len, outbuf);
+    }
+    free(temp_name);
+}
+
+static void _derive_master_keys_mariko(key_storage_t *keys, bool is_dev) {
     minerva_periodic_training();
     // Relies on the SBK being properly set in slot 14
     se_aes_crypt_block_ecb(KS_SECURE_BOOT, DECRYPT, keys->device_key_4x, device_master_key_source_kek_source);
     // Derive all master keys based on Mariko KEK
     for (u32 i = KB_FIRMWARE_VERSION_600; i < ARRAY_SIZE(mariko_master_kek_sources) + KB_FIRMWARE_VERSION_600; i++) {
         // Relies on the Mariko KEK being properly set in slot 12
-        se_aes_crypt_block_ecb(KS_MARIKO_KEK, DECRYPT, keys->master_kek[i], is_dev ? &mariko_master_kek_sources_dev[i - KB_FIRMWARE_VERSION_600] : &mariko_master_kek_sources[i - KB_FIRMWARE_VERSION_600]);
+        u32 kek_source_index = i - KB_FIRMWARE_VERSION_600;
+        const void *kek_source = is_dev ? &mariko_master_kek_sources_dev[kek_source_index] : &mariko_master_kek_sources[kek_source_index];
+        se_aes_crypt_block_ecb(KS_MARIKO_KEK, DECRYPT, keys->master_kek[i], kek_source);
         load_aes_key(KS_AES_ECB, keys->master_key[i], keys->master_kek[i], master_key_source);
     }
 }
 
-static int _run_ams_keygen(key_storage_t *keys) {
-    tsec_ctxt_t tsec_ctxt;
-    tsec_ctxt.fw = tsec_keygen;
-    tsec_ctxt.size = sizeof(tsec_keygen);
-    tsec_ctxt.type = TSEC_FW_TYPE_NEW;
-
-    u32 retries = 0;
-    while (tsec_query(keys->temp_key, &tsec_ctxt) < 0) {
-        retries++;
-        if (retries > 15) {
-            EPRINTF("Failed to run keygen.");
-            return -1;
-        }
-    }
-
-    return 0;
-}
-
 static void _derive_master_keys_from_latest_key(key_storage_t *keys, bool is_dev) {
     minerva_periodic_training();
     if (!h_cfg.t210b01) {
-        u32 tsec_root_key_slot = is_dev ? 11 : 13;
+        u32 tsec_root_key_slot = is_dev ? KS_TSEC_ROOT_DEV : KS_TSEC_ROOT;
         // Derive all master keys based on current root key
         for (u32 i = KB_FIRMWARE_VERSION_810 - KB_FIRMWARE_VERSION_620; i < ARRAY_SIZE(master_kek_sources); i++) {
-            se_aes_crypt_block_ecb(tsec_root_key_slot, DECRYPT, keys->master_kek[i + KB_FIRMWARE_VERSION_620], master_kek_sources[i]);
+            u32 key_index = i + KB_FIRMWARE_VERSION_620;
-            load_aes_key(KS_AES_ECB, keys->master_key[i + KB_FIRMWARE_VERSION_620], keys->master_kek[i + KB_FIRMWARE_VERSION_620], master_key_source);
+            se_aes_crypt_block_ecb(tsec_root_key_slot, DECRYPT, keys->master_kek[key_index], master_kek_sources[i]);
+            load_aes_key(KS_AES_ECB, keys->master_key[key_index], keys->master_kek[key_index], master_key_source);
         }
     }
 
@@ -113,7 +113,7 @@ static void _derive_master_keys_from_latest_key(key_storage_t *keys, bool is_dev
     }
     load_aes_key(KS_AES_ECB, keys->temp_key, keys->master_key[0], is_dev ? master_key_vectors_dev[0] : master_key_vectors[0]);
 
-    if (_key_exists(keys->temp_key)) {
+    if (key_exists(keys->temp_key)) {
         EPRINTFARGS("Unable to derive master keys for %s.", is_dev ? "dev" : "prod");
         memset(keys->master_key, 0, sizeof(keys->master_key));
     }
@@ -176,7 +176,7 @@ static void _derive_keyblob_keys(key_storage_t *keys) {
 
         memcpy(keys->package1_key[i], keys->keyblob[i].package1_key, sizeof(keys->package1_key[i]));
         memcpy(keys->master_kek[i], keys->keyblob[i].master_kek, sizeof(keys->master_kek[i]));
-        if (!_key_exists(keys->master_key[i])) {
+        if (!key_exists(keys->master_key[i])) {
             load_aes_key(KS_AES_ECB, keys->master_key[i], keys->master_kek[i], master_key_source);
         }
     }
@@ -186,67 +186,26 @@ static void _derive_keyblob_keys(key_storage_t *keys) {
 static void _derive_bis_keys(key_storage_t *keys) {
     minerva_periodic_training();
     u32 generation = fuse_read_odm_keygen_rev();
-
+    fs_derive_bis_keys(keys, keys->bis_key, generation);
-    if (!(_key_exists(keys->device_key) || (generation && _key_exists(keys->master_key[0]) && _key_exists(keys->device_key_4x)))) {
-        return;
-    }
-    generate_specific_aes_key(KS_AES_ECB, keys, &keys->bis_key[0], bis_key_sources[0], generation);
-    u32 access_key[SE_KEY_128_SIZE / 4] = {0};
-    const u32 option = IS_DEVICE_UNIQUE;
-    generate_aes_kek(KS_AES_ECB, keys, access_key, bis_kek_source, generation, option);
-    generate_aes_key(KS_AES_ECB, keys, keys->bis_key[1], sizeof(keys->bis_key[1]), access_key, bis_key_sources[1]);
-    generate_aes_key(KS_AES_ECB, keys, keys->bis_key[2], sizeof(keys->bis_key[2]), access_key, bis_key_sources[2]);
-    memcpy(keys->bis_key[3], keys->bis_key[2], sizeof(keys->bis_key[3]));
-}
-
-static void _derive_non_unique_keys(key_storage_t *keys, bool is_dev) {
-    minerva_periodic_training();
-    if (_key_exists(keys->master_key[0])) {
-        const u32 generation = 0;
-        const u32 option = GET_IS_DEVICE_UNIQUE(NOT_DEVICE_UNIQUE);
-        generate_aes_kek(KS_AES_ECB, keys, keys->temp_key, header_kek_source, generation, option);
-        generate_aes_key(KS_AES_ECB, keys, keys->header_key, sizeof(keys->header_key), keys->temp_key, header_key_source);
-    }
-}
-
-static void _derive_rsa_kek(u32 ks, key_storage_t *keys, void *out_rsa_kek, const void *kekek_source, const void *kek_source, u32 generation, u32 option) {
-    void *access_key = keys->temp_key;
-    generate_aes_kek(ks, keys, access_key, kekek_source, generation, option);
-    get_device_unique_data_key(ks, out_rsa_kek, access_key, kek_source);
 }
 
 static void _derive_misc_keys(key_storage_t *keys, bool is_dev) {
     minerva_periodic_training();
-    if (_key_exists(keys->device_key) || (_key_exists(keys->master_key[0]) && _key_exists(keys->device_key_4x))) {
+    fs_derive_save_mac_key(keys, keys->save_mac_key);
-        void *access_key = keys->temp_key;
+    es_derive_rsa_kek_original(keys, keys->eticket_rsa_kek, is_dev);
-        const u32 generation = 0;
+    ssl_derive_rsa_kek_original(keys, keys->ssl_rsa_kek, is_dev);
-        const u32 option = IS_DEVICE_UNIQUE;
-        generate_aes_kek(KS_AES_ECB, keys, access_key, save_mac_kek_source, generation, option);
-        load_aes_key(KS_AES_ECB, keys->save_mac_key, access_key, save_mac_key_source);
 }
 
-    if (_key_exists(keys->master_key[0])) {
+static void _derive_non_unique_keys(key_storage_t *keys) {
-        const void *eticket_kek_source = is_dev ? eticket_rsa_kek_source_dev : eticket_rsa_kek_source;
+    minerva_periodic_training();
-        const u32 generation = 0;
+    fs_derive_header_key(keys, keys->header_key);
-        u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_ES_DEVICE_KEY) | NOT_DEVICE_UNIQUE;
-        _derive_rsa_kek(KS_AES_ECB, keys, keys->eticket_rsa_kek, eticket_rsa_kekek_source, eticket_kek_source, generation, option);
 
-        const void *ssl_kek_source = is_dev ? ssl_rsa_kek_source_dev : ssl_rsa_kek_source;
-        option = SET_SEAL_KEY_INDEX(SEAL_KEY_DECRYPT_DEVICE_UNIQUE_DATA) | NOT_DEVICE_UNIQUE;
-        _derive_rsa_kek(KS_AES_ECB, keys, keys->ssl_rsa_kek, ssl_rsa_kekek_source, ssl_kek_source, generation, option);
-    }
-}
-
-static void _derive_per_generation_keys(key_storage_t *keys) {
     for (u32 generation = 0; generation < ARRAY_SIZE(keys->master_key); generation++) {
         minerva_periodic_training();
-        if (!_key_exists(keys->master_key[generation]))
+        if (!key_exists(keys->master_key[generation]))
             continue;
         for (u32 source_type = 0; source_type < ARRAY_SIZE(key_area_key_sources); source_type++) {
-            void *access_key = keys->temp_key;
+            fs_derive_key_area_key(keys, keys->key_area_key[source_type][generation], source_type, generation);
-            const u32 option = GET_IS_DEVICE_UNIQUE(NOT_DEVICE_UNIQUE);
-            generate_aes_kek(KS_AES_ECB, keys, access_key, key_area_key_sources[source_type], generation + 1, option);
-            load_aes_key(KS_AES_ECB, keys->key_area_key[source_type][generation], access_key, aes_key_generation_source);
         }
         load_aes_key(KS_AES_ECB, keys->package2_key[generation], keys->master_key[generation], package2_key_source);
         load_aes_key(KS_AES_ECB, keys->titlekek[generation], keys->master_key[generation], titlekek_source);
@@ -292,7 +251,7 @@ static void _decode_tickets(u32 buf_size, titlekey_buffer_t *titlekey_buffer, u3
     }
 }
 
-static bool _get_titlekeys_from_save(u32 buf_size, const u8 *save_mac_key, titlekey_buffer_t *titlekey_buffer, rsa_keypair_t *rsa_keypair) {
+static bool _get_titlekeys_from_save(u32 buf_size, const u8 *save_mac_key, titlekey_buffer_t *titlekey_buffer, eticket_rsa_keypair_t *rsa_keypair) {
     FIL fp;
     u64 br = buf_size;
     u64 offset = 0;
@@ -471,14 +430,12 @@ static bool _decrypt_ssl_rsa_key(key_storage_t *keys, titlekey_buffer_t *titleke
             return true;
         }
 
-        const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_DECRYPT_DEVICE_UNIQUE_DATA) | NOT_DEVICE_UNIQUE;
+        ssl_derive_rsa_kek_legacy(keys, keys->ssl_rsa_kek_legacy);
         ctr_key = keys->ssl_rsa_kek_legacy;
-        _derive_rsa_kek(KS_AES_ECB, keys, ctr_key, ssl_rsa_kekek_source, ssl_rsa_kek_source_legacy, generation, option);
         enforce_unique = false;
     } else if (generation) {
-        const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_SSL_KEY) | IS_DEVICE_UNIQUE;
+        ssl_derive_rsa_kek_device_unique(keys, keys->ssl_rsa_kek_personalized, generation);
         ctr_key = keys->ssl_rsa_kek_personalized;
-        _derive_rsa_kek(KS_AES_ECB, keys, ctr_key, ssl_client_cert_kek_source, ssl_client_cert_key_source, generation, option);
     } else {
         ctr_key = keys->ssl_rsa_kek;
     }
@@ -520,9 +477,9 @@ static bool _decrypt_eticket_rsa_key(key_storage_t *keys, titlekey_buffer_t *tit
 
     // Handle legacy case
     if (key_size == ETICKET_RSA_KEYPAIR_SIZE) {
-        const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_ES_DEVICE_KEY) | NOT_DEVICE_UNIQUE;
+        u32 temp_key[SE_KEY_128_SIZE / 4] = {0};
-        ctr_key = keys->temp_key;
+        es_derive_rsa_kek_legacy(keys, temp_key);
-        _derive_rsa_kek(KS_AES_ECB, keys, ctr_key, eticket_rsa_kekek_source, eticket_rsa_kek_source_legacy, generation, option);
+        ctr_key = temp_key;
 
         se_aes_key_set(KS_AES_CTR, ctr_key, SE_KEY_128_SIZE);
         se_aes_crypt_ctr(KS_AES_CTR, &keys->eticket_rsa_keypair, sizeof(keys->eticket_rsa_keypair), encrypted_key, sizeof(keys->eticket_rsa_keypair), iv);
@@ -535,10 +492,8 @@ static bool _decrypt_eticket_rsa_key(key_storage_t *keys, titlekey_buffer_t *tit
     }
 
     if (generation) {
-        const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_ES_DEVICE_KEY) | IS_DEVICE_UNIQUE;
+        es_derive_rsa_kek_device_unique(keys, keys->eticket_rsa_kek_personalized, generation, is_dev);
         ctr_key = keys->eticket_rsa_kek_personalized;
-        const void *kek_source = is_dev ? eticket_rsa_kek_source_dev : eticket_rsa_kek_source;
-        _derive_rsa_kek(KS_AES_ECB, keys, ctr_key, eticket_rsa_kekek_source, kek_source, generation, option);
     } else {
         ctr_key = keys->eticket_rsa_kek;
     }
@@ -556,16 +511,12 @@ static bool _decrypt_eticket_rsa_key(key_storage_t *keys, titlekey_buffer_t *tit
 }
 
 static bool _derive_titlekeys(key_storage_t *keys, titlekey_buffer_t *titlekey_buffer, bool is_dev) {
-    if (!_key_exists(keys->eticket_rsa_kek)) {
+    if (!key_exists(keys->eticket_rsa_kek)) {
         return false;
     }
 
     gfx_printf("%kTitlekeys...     \n", colors[(color_idx++) % 6]);
 
-    if (!_decrypt_eticket_rsa_key(keys, titlekey_buffer, is_dev)) {
-        return false;
-    }
-
     const u32 buf_size = SAVE_BLOCK_SIZE_DEFAULT;
     _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, &keys->eticket_rsa_keypair);
@@ -591,6 +542,17 @@ static bool _derive_emmc_keys(key_storage_t *keys, titlekey_buffer_t *titlekey_b
         EPRINTF("Unable to set partition.");
         return false;
     }
+
+    bool res = _decrypt_ssl_rsa_key(keys, titlekey_buffer);
+    if (!res) {
+        EPRINTF("Unable to derive SSL key.");
+    }
+
+    res =_decrypt_eticket_rsa_key(keys, titlekey_buffer, is_dev);
+    if (!res) {
+        EPRINTF("Unable to derive ETicket key.");
+    }
+
     // Parse eMMC GPT
     LIST_INIT(gpt);
     nx_emmc_gpt_parse(&gpt, &emmc_storage);
@@ -616,11 +578,6 @@ static bool _derive_emmc_keys(key_storage_t *keys, titlekey_buffer_t *titlekey_b
         EPRINTF("Unable to get SD seed.");
     }
 
-    bool res = _decrypt_ssl_rsa_key(keys, titlekey_buffer);
-    if (!res) {
-        EPRINTF("Unable to derive SSL key.");
-    }
-
     res = _derive_titlekeys(keys, titlekey_buffer, is_dev);
     if (!res) {
         EPRINTF("Unable to derive titlekeys.");
@@ -660,7 +617,7 @@ int save_mariko_partial_keys(u32 start, u32 count, bool append) {
         // Check if key is as expected
         if (ks < ARRAY_SIZE(mariko_key_vectors)) {
             se_aes_crypt_block_ecb(ks, DECRYPT, &data[0], mariko_key_vectors[ks]);
-            if (_key_exists(data)) {
+            if (key_exists(data)) {
                 EPRINTFARGS("Failed to validate keyslot %d.", ks);
                 continue;
             }
@@ -858,11 +815,11 @@ static void _derive_master_keys(key_storage_t *prod_keys, key_storage_t *dev_key
     key_storage_t *keys = is_dev ? dev_keys : prod_keys;
 
     if (h_cfg.t210b01) {
-        _derive_master_key_mariko(keys, is_dev);
+        _derive_master_keys_mariko(keys, is_dev);
         _derive_master_keys_from_latest_key(keys, is_dev);
     } else {
-        int res = _run_ams_keygen(keys);
+        if (run_ams_keygen(keys)) {
-        if (res) {
+            EPRINTF("Failed to run keygen.");
             return;
         }
 
@@ -916,17 +873,15 @@ static void _derive_keys() {
     TPRINTFARGS("%kBIS keys...     ", colors[(color_idx++) % 6]);
 
     _derive_misc_keys(keys, is_dev);
-    _derive_non_unique_keys(&prod_keys, is_dev);
+    _derive_non_unique_keys(&prod_keys);
-    _derive_non_unique_keys(&dev_keys, is_dev);
+    _derive_non_unique_keys(&dev_keys);
-    _derive_per_generation_keys(&prod_keys);
-    _derive_per_generation_keys(&dev_keys);
 
     titlekey_buffer_t *titlekey_buffer = (titlekey_buffer_t *)TITLEKEY_BUF_ADR;
 
     // Requires BIS key for SYSTEM partition
     if (!emmc_storage.initialized) {
         EPRINTF("eMMC not initialized.\nSkipping SD seed and titlekeys.");
-    } else if (_key_exists(keys->bis_key[2])) {
+    } else if (key_exists(keys->bis_key[2])) {
         _derive_emmc_keys(keys, titlekey_buffer, is_dev);
     } else {
         EPRINTF("Missing needed BIS keys.\nSkipping SD seed and titlekeys.");
@@ -946,37 +901,6 @@ static void _derive_keys() {
     }
 }
 
- static void _decrypt_amiibo_keys(key_storage_t *keys, const u8 *encrypted_keys, nfc_save_key_t nfc_save_keys[2]) {
-    u32 kek[SE_KEY_128_SIZE / 4] = {0};
-    decrypt_aes_key(KS_AES_ECB, keys, kek, nfc_key_source, 0, 0);
-
-    nfc_keyblob_t __attribute__((aligned(4))) nfc_keyblob;
-    static const u8 nfc_iv[SE_KEY_128_SIZE] = {
-        0xB9, 0x1D, 0xC1, 0xCF, 0x33, 0x5F, 0xA6, 0x13, 0x2A, 0xEF, 0x90, 0x99, 0xAA, 0xCA, 0x93, 0xC8};
-    se_aes_key_set(KS_AES_CTR, kek, SE_KEY_128_SIZE);
-    se_aes_crypt_ctr(KS_AES_CTR, &nfc_keyblob, sizeof(nfc_keyblob), encrypted_keys, sizeof(nfc_keyblob), &nfc_iv);
-
-    minerva_periodic_training();
-
-    u32 xor_pad[0x20 / 4] = {0};
-    se_aes_key_set(KS_AES_CTR, nfc_keyblob.ctr_key, SE_KEY_128_SIZE);
-    se_aes_crypt_ctr(KS_AES_CTR, xor_pad, sizeof(xor_pad), xor_pad, sizeof(xor_pad), nfc_keyblob.ctr_iv);
-
-    minerva_periodic_training();
-
-    memcpy(nfc_save_keys[0].hmac_key, nfc_keyblob.hmac_key, sizeof(nfc_keyblob.hmac_key));
-    memcpy(nfc_save_keys[0].phrase, nfc_keyblob.phrase, sizeof(nfc_keyblob.phrase));
-    nfc_save_keys[0].seed_size = sizeof(nfc_keyblob.seed);
-    memcpy(nfc_save_keys[0].seed, nfc_keyblob.seed, sizeof(nfc_keyblob.seed));
-    memcpy(nfc_save_keys[0].xor_pad, xor_pad, sizeof(xor_pad));
-
-    memcpy(nfc_save_keys[1].hmac_key, nfc_keyblob.hmac_key_for_verif, sizeof(nfc_keyblob.hmac_key_for_verif));
-    memcpy(nfc_save_keys[1].phrase, nfc_keyblob.phrase_for_verif, sizeof(nfc_keyblob.phrase_for_verif));
-    nfc_save_keys[1].seed_size = sizeof(nfc_keyblob.seed_for_verif);
-    memcpy(nfc_save_keys[1].seed, nfc_keyblob.seed_for_verif, sizeof(nfc_keyblob.seed_for_verif));
-    memcpy(nfc_save_keys[1].xor_pad, xor_pad, sizeof(xor_pad));
- }
-
 void derive_amiibo_keys() {
     minerva_change_freq(FREQ_1600);
 
@@ -984,7 +908,6 @@ void derive_amiibo_keys() {
 
     key_storage_t __attribute__((aligned(4))) prod_keys = {0}, dev_keys = {0};
     key_storage_t *keys = is_dev ? &dev_keys : &prod_keys;
-    const u8 *encrypted_keys = is_dev ? encrypted_nfc_keys_dev : encrypted_nfc_keys;
 
     _derive_master_keys(&prod_keys, &dev_keys, is_dev);
 
@@ -998,7 +921,7 @@ void derive_amiibo_keys() {
 
     minerva_periodic_training();
 
-    if (!_key_exists(keys->master_key[0])) {
+    if (!key_exists(keys->master_key[0])) {
         EPRINTF("Unable to derive master keys for NFC.");
         minerva_change_freq(FREQ_800);
         btn_wait();
@@ -1007,7 +930,7 @@ void derive_amiibo_keys() {
 
     nfc_save_key_t __attribute__((aligned(4))) nfc_save_keys[2] = {0};
 
-    _decrypt_amiibo_keys(keys, encrypted_keys, nfc_save_keys);
+    nfc_decrypt_amiibo_keys(keys, nfc_save_keys, is_dev);
 
     minerva_periodic_training();
 
@@ -1073,23 +996,3 @@ void dump_keys() {
     }
     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 += s_printf(&outbuf[pos], "%s = ", name);
-    for (u32 i = 0; i < len; i++)
-        pos += s_printf(&outbuf[pos], "%02x", *(u8*)(data + i));
-    s_printf(&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 = calloc(1, 0x40);
-    for (u32 i = 0; i < num_keys; i++) {
-        s_printf(temp_name, "%s_%02x", name, i + start_key);
-        _save_key(temp_name, data + i * len, len, outbuf);
-    }
-    free(temp_name);
-}

source/keys/keys.h

@@ -62,27 +62,6 @@ typedef struct {
     u8 titlekeys[SZ_256K / 0x10][0x10];
 } titlekey_buffer_t;
 
-typedef struct {
-    char phrase[0xE];
-    u8 seed[0xE];
-    u8 hmac_key[0x10];
-    char phrase_for_verif[0xE];
-    u8 seed_for_verif[0x10];
-    u8 hmac_key_for_verif[0x10];
-    u8 ctr_key[0x10];
-    u8 ctr_iv[0x10];
-    u8 pad[6];
-} nfc_keyblob_t;
-
-typedef struct {
-    u8 hmac_key[0x10];
-    char phrase[0xE];
-    u8 rsvd;
-    u8 seed_size;
-    u8 seed[0x10];
-    u8 xor_pad[0x20];
-} nfc_save_key_t;
-
 typedef struct {
     char rights_id[0x20];
     char equals[3];

source/keys/nfc_crypto.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2022 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 "nfc_crypto.h"
+
+#include <mem/minerva.h>
+#include <sec/se.h>
+
+#include <string.h>
+
+void nfc_decrypt_amiibo_keys(key_storage_t *keys, nfc_save_key_t out_nfc_save_keys[2], bool is_dev) {
+    const u8 *encrypted_keys = is_dev ? encrypted_nfc_keys_dev : encrypted_nfc_keys;
+    u32 kek[SE_KEY_128_SIZE / 4] = {0};
+    decrypt_aes_key(KS_AES_ECB, keys, kek, nfc_key_source, 0, 0);
+
+    nfc_keyblob_t __attribute__((aligned(4))) nfc_keyblob;
+    static const u8 nfc_iv[SE_KEY_128_SIZE] = {
+        0xB9, 0x1D, 0xC1, 0xCF, 0x33, 0x5F, 0xA6, 0x13, 0x2A, 0xEF, 0x90, 0x99, 0xAA, 0xCA, 0x93, 0xC8};
+    se_aes_key_set(KS_AES_CTR, kek, SE_KEY_128_SIZE);
+    se_aes_crypt_ctr(KS_AES_CTR, &nfc_keyblob, sizeof(nfc_keyblob), encrypted_keys, sizeof(nfc_keyblob), &nfc_iv);
+
+    minerva_periodic_training();
+
+    u32 xor_pad[0x20 / 4] = {0};
+    se_aes_key_set(KS_AES_CTR, nfc_keyblob.ctr_key, SE_KEY_128_SIZE);
+    se_aes_crypt_ctr(KS_AES_CTR, xor_pad, sizeof(xor_pad), xor_pad, sizeof(xor_pad), nfc_keyblob.ctr_iv);
+
+    minerva_periodic_training();
+
+    memcpy(out_nfc_save_keys[0].hmac_key, nfc_keyblob.hmac_key, sizeof(nfc_keyblob.hmac_key));
+    memcpy(out_nfc_save_keys[0].phrase, nfc_keyblob.phrase, sizeof(nfc_keyblob.phrase));
+    out_nfc_save_keys[0].seed_size = sizeof(nfc_keyblob.seed);
+    memcpy(out_nfc_save_keys[0].seed, nfc_keyblob.seed, sizeof(nfc_keyblob.seed));
+    memcpy(out_nfc_save_keys[0].xor_pad, xor_pad, sizeof(xor_pad));
+
+    memcpy(out_nfc_save_keys[1].hmac_key, nfc_keyblob.hmac_key_for_verif, sizeof(nfc_keyblob.hmac_key_for_verif));
+    memcpy(out_nfc_save_keys[1].phrase, nfc_keyblob.phrase_for_verif, sizeof(nfc_keyblob.phrase_for_verif));
+    out_nfc_save_keys[1].seed_size = sizeof(nfc_keyblob.seed_for_verif);
+    memcpy(out_nfc_save_keys[1].seed, nfc_keyblob.seed_for_verif, sizeof(nfc_keyblob.seed_for_verif));
+    memcpy(out_nfc_save_keys[1].xor_pad, xor_pad, sizeof(xor_pad));
+}

source/keys/nfc_crypto.h

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2022 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/>.
+ */
+
+#ifndef _NFC_CRYPTO_H_
+#define _NFC_CRYPTO_H_
+
+#include "crypto.h"
+
+#include <sec/se_t210.h>
+#include <utils/types.h>
+
+static const u8 nfc_key_source[0x10] __attribute__((aligned(4))) = {
+    0x83, 0xF6, 0xEF, 0xD8, 0x13, 0x26, 0x49, 0xAB, 0x97, 0x5F, 0xEA, 0xBA, 0x65, 0x71, 0xCA, 0xCA};
+static const u8 encrypted_nfc_keys[0x80] __attribute__((aligned(4))) = {
+    0x76, 0x50, 0x87, 0x02, 0x40, 0xA6, 0x5A, 0x98, 0xCE, 0x39, 0x2F, 0xC8, 0x83, 0xAF, 0x54, 0x76,
+    0x28, 0xFF, 0x50, 0xFC, 0xC1, 0xFB, 0x26, 0x14, 0xA2, 0x4A, 0xA6, 0x74, 0x90, 0xA4, 0x37, 0x06,
+    0x03, 0x63, 0xC2, 0xB1, 0xAF, 0x9F, 0xF7, 0x07, 0xFC, 0x8A, 0xB9, 0xCA, 0x28, 0x68, 0x6E, 0xF7,
+    0x42, 0xCD, 0x68, 0x13, 0xCD, 0x7B, 0x3A, 0x60, 0x3E, 0x8B, 0xAB, 0x3A, 0xCC, 0xED, 0xE0, 0xDD,
+    0x71, 0x1F, 0xA5, 0xDE, 0xB8, 0xB1, 0xF5, 0x1D, 0x14, 0x73, 0xBE, 0x27, 0xCC, 0xA1, 0x9B, 0x23,
+    0x06, 0x91, 0x89, 0x05, 0xED, 0xD6, 0x92, 0x76, 0x3F, 0x42, 0xFB, 0xD1, 0x8F, 0x2D, 0x6D, 0x72,
+    0xC8, 0x9E, 0x48, 0xE8, 0x03, 0x64, 0xF0, 0x3C, 0x0E, 0x2A, 0xF1, 0x26, 0x83, 0x02, 0x4F, 0xE2,
+    0x41, 0xAA, 0xC8, 0x33, 0x68, 0x84, 0x3A, 0xFB, 0x87, 0x18, 0xEA, 0xF7, 0x36, 0xA2, 0x4E, 0xA9};
+static const u8 encrypted_nfc_keys_dev[0x80] __attribute__((aligned(4))) = {
+    0x13, 0xB0, 0xFB, 0xC2, 0x91, 0x6D, 0x6E, 0x5A, 0x10, 0x31, 0x40, 0xB7, 0xDF, 0xCF, 0x69, 0x69,
+    0xB0, 0xFA, 0xAE, 0x7F, 0xB2, 0x4D, 0x27, 0xC9, 0xE9, 0x3F, 0x5B, 0x38, 0x39, 0x24, 0x98, 0xCE,
+    0xED, 0xD2, 0xA9, 0x6C, 0x6F, 0xA7, 0x72, 0xD7, 0x11, 0x31, 0x17, 0x93, 0x12, 0x49, 0x32, 0x85,
+    0x21, 0xE5, 0xE1, 0x88, 0x0F, 0x08, 0xF2, 0x30, 0x5C, 0xC3, 0xAA, 0xFF, 0xC0, 0xAB, 0x21, 0x96,
+    0x74, 0x39, 0xED, 0xE0, 0x5A, 0xB6, 0x75, 0xC2, 0x3B, 0x08, 0x61, 0xE4, 0xA7, 0xD6, 0xED, 0x8C,
+    0xA9, 0x02, 0x12, 0xA6, 0xCC, 0x27, 0x4C, 0x1C, 0x41, 0x9C, 0xD8, 0x4C, 0x00, 0xC7, 0x5B, 0x5D,
+    0xED, 0xC2, 0x3D, 0x5E, 0x00, 0xF5, 0x49, 0xFA, 0x6C, 0x75, 0x67, 0xCF, 0x1F, 0x73, 0x1A, 0xE8,
+    0x47, 0xD4, 0x3D, 0x9B, 0x83, 0x5B, 0x18, 0x2F, 0x95, 0xA9, 0x04, 0xBC, 0x2E, 0xBB, 0x64, 0x4A};
+static const u8 nfc_blob_hash[SE_SHA_256_SIZE] __attribute__((aligned(4))) = {
+    0x7F, 0x92, 0x83, 0x65, 0x4E, 0xC1, 0x09, 0x7F, 0xBD, 0xFF, 0x31, 0xDE, 0x94, 0x66, 0x51, 0xAE,
+    0x60, 0xC2, 0x85, 0x4A, 0xFB, 0x54, 0x4A, 0xBE, 0x89, 0x63, 0xD3, 0x89, 0x63, 0x9C, 0x71, 0x0E};
+static const u8 nfc_blob_hash_dev[SE_SHA_256_SIZE] __attribute__((aligned(4))) = {
+    0x4E, 0x36, 0x59, 0x1C, 0x75, 0x80, 0x23, 0x03, 0x98, 0x2D, 0x45, 0xD9, 0x85, 0xB8, 0x60, 0x18,
+    0x7C, 0x85, 0x37, 0x9B, 0xCB, 0xBA, 0xF3, 0xDC, 0x25, 0x38, 0x73, 0xDB, 0x2F, 0xFA, 0xAE, 0x26};
+
+typedef struct {
+    char phrase[0xE];
+    u8 seed[0xE];
+    u8 hmac_key[0x10];
+    char phrase_for_verif[0xE];
+    u8 seed_for_verif[0x10];
+    u8 hmac_key_for_verif[0x10];
+    u8 ctr_key[0x10];
+    u8 ctr_iv[0x10];
+    u8 pad[6];
+} nfc_keyblob_t;
+
+typedef struct {
+    u8 hmac_key[0x10];
+    char phrase[0xE];
+    u8 rsvd;
+    u8 seed_size;
+    u8 seed[0x10];
+    u8 xor_pad[0x20];
+} nfc_save_key_t;
+
+void nfc_decrypt_amiibo_keys(key_storage_t *keys, nfc_save_key_t out_nfc_save_keys[2], bool is_dev);
+
+#endif

source/keys/ssl_crypto.c

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2022 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 "ssl_crypto.h"
+
+#include "../config.h"
+
+extern hekate_config h_cfg;
+
+void ssl_derive_rsa_kek_device_unique(key_storage_t *keys, void *out_rsa_kek, u32 generation) {
+    if ((!h_cfg.t210b01 && !key_exists(keys->device_key)) || (h_cfg.t210b01 && (!key_exists(keys->master_key[0]) || !key_exists(keys->device_key_4x)))) {
+        return;
+    }
+
+    const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_IMPORT_SSL_KEY) | IS_DEVICE_UNIQUE;
+    derive_rsa_kek(KS_AES_ECB, keys, out_rsa_kek, ssl_client_cert_kek_source, ssl_client_cert_key_source, generation, option);
+}
+
+void ssl_derive_rsa_kek_legacy(key_storage_t *keys, void *out_rsa_kek) {
+    if (!key_exists(keys->master_key[0])) {
+        return;
+    }
+
+    const u32 generation = 0;
+    const u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_DECRYPT_DEVICE_UNIQUE_DATA) | NOT_DEVICE_UNIQUE;
+    derive_rsa_kek(KS_AES_ECB, keys, out_rsa_kek, ssl_rsa_kekek_source, ssl_rsa_kek_source_legacy, generation, option);
+}
+
+void ssl_derive_rsa_kek_original(key_storage_t *keys, void *out_rsa_kek, bool is_dev) {
+    if (!key_exists(keys->master_key[0])) {
+        return;
+    }
+
+    const void *ssl_kek_source = is_dev ? ssl_rsa_kek_source_dev : ssl_rsa_kek_source;
+    const u32 generation = 0;
+    u32 option = SET_SEAL_KEY_INDEX(SEAL_KEY_DECRYPT_DEVICE_UNIQUE_DATA) | NOT_DEVICE_UNIQUE;
+    derive_rsa_kek(KS_AES_ECB, keys, out_rsa_kek, ssl_rsa_kekek_source, ssl_kek_source, generation, option);
+}

source/keys/ssl_crypto.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2022 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/>.
+ */
+
+#ifndef _SSL_CRYPTO_H_
+#define _SSL_CRYPTO_H_
+
+#include "crypto.h"
+
+#include <utils/types.h>
+
+static const u8 ssl_rsa_kekek_source[0x10] __attribute__((aligned(4))) = {
+    0X7F, 0X5B, 0XB0, 0X84, 0X7B, 0X25, 0XAA, 0X67, 0XFA, 0XC8, 0X4B, 0XE2, 0X3D, 0X7B, 0X69, 0X03};
+static const u8 ssl_rsa_kek_source[0x10] __attribute__((aligned(4))) = {
+    0X9A, 0X38, 0X3B, 0XF4, 0X31, 0XD0, 0XBD, 0X81, 0X32, 0X53, 0X4B, 0XA9, 0X64, 0X39, 0X7D, 0XE3};
+static const u8 ssl_rsa_kek_source_dev[0x10] __attribute__((aligned(4))) = {
+    0xD5, 0xD2, 0xFC, 0x00, 0xFD, 0x49, 0xDD, 0xF8, 0xEE, 0x7B, 0xC4, 0x4B, 0xE1, 0x4C, 0xAA, 0x99};
+static const u8 ssl_rsa_kek_source_legacy[0x10] __attribute__((aligned(4))) = {
+    0xED, 0x36, 0xB1, 0x32, 0x27, 0x17, 0xD2, 0xB0, 0xBA, 0x1F, 0xC1, 0xBD, 0x4D, 0x38, 0x0F, 0x5E};
+static const u8 ssl_client_cert_kek_source[0x10] __attribute__((aligned(4))) = {
+    0x64, 0xB8, 0x30, 0xDD, 0x0F, 0x3C, 0xB7, 0xFB, 0x4C, 0x16, 0x01, 0x97, 0xEA, 0x9D, 0x12, 0x10};
+static const u8 ssl_client_cert_key_source[0x10] __attribute__((aligned(4))) = {
+    0x4D, 0x92, 0x5A, 0x69, 0x42, 0x23, 0xBB, 0x92, 0x59, 0x16, 0x3E, 0x51, 0x8C, 0x78, 0x14, 0x0F};
+
+void ssl_derive_rsa_kek_device_unique(key_storage_t *keys, void *out_rsa_kek, u32 generation);
+void ssl_derive_rsa_kek_legacy(key_storage_t *keys, void *out_rsa_kek);
+void ssl_derive_rsa_kek_original(key_storage_t *keys, void *out_rsa_kek, bool is_dev);
+
+#endif