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fusee_cpp: implement all required key derivation

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Michael Scire 2021-08-28 01:15:15 -07:00 committed by SciresM
parent 51cf28339b
commit 6c5f2804ab
5 changed files with 374 additions and 1 deletions
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8
fusee_cpp/program/program.ld
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@ -19,6 +19,7 @@ SECTIONS
.text :
{
FILL(0x00000000)
KEEP(*(.text._ZN3ams4util15GetMicroSecondsEv))
KEEP(*(.text._ZN3ams4util16WaitMicroSecondsEi))
KEEP(*(.text._ZN3ams6nxboot14ShowFatalErrorEPKcz))
@ -28,6 +29,9 @@ SECTIONS
*(.text.startup .text.startup.*)
*(.text.hot .text.hot.*)
*(.text .stub .text.* .gnu.linkonce.t.*)
. = ALIGN(16);
. = . + 15;
BYTE(0x00);
} >main AT>glob
.init :
@ -52,7 +56,11 @@ SECTIONS
.rodata :
{
FILL(0x00000000)
*(.rodata .rodata.* .gnu.linkonce.r.*)
. = ALIGN(16);
. = . + 15;
BYTE(0x00);
} >main AT>glob
.eh_frame_hdr : { __eh_frame_hdr_start = .; *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) __eh_frame_hdr_end = .; } >main AT>glob

302
fusee_cpp/program/source/fusee_key_derivation.cpp Normal file
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@ -0,0 +1,302 @@
/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* 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 <exosphere.hpp>
#include "fusee_key_derivation.hpp"
#include "fusee_fatal.hpp"
namespace ams::nxboot {
namespace {
alignas(se::AesBlockSize) constexpr inline const u8 MarikoMasterKekSource[se::AesBlockSize] = {
/* TODO: Update on next change of keys. */
0xE5, 0x41, 0xAC, 0xEC, 0xD1, 0xA7, 0xD1, 0xAB, 0xED, 0x03, 0x77, 0xF1, 0x27, 0xCA, 0xF8, 0xF1
};
alignas(se::AesBlockSize) constexpr inline const u8 MarikoMasterKekSourceDev[se::AesBlockSize] = {
/* TODO: Update on next change of keys. */
0x75, 0x2D, 0x2E, 0xF3, 0x2F, 0x3F, 0xFE, 0x65, 0xF4, 0xA9, 0x83, 0xB4, 0xED, 0x42, 0x63, 0xBA
};
alignas(se::AesBlockSize) constexpr inline const u8 EristaMasterKekSource[se::AesBlockSize] = {
/* TODO: Update on next change of keys. */
0x84, 0x67, 0xB6, 0x7F, 0x13, 0x11, 0xAE, 0xE6, 0x58, 0x9B, 0x19, 0xAF, 0x13, 0x6C, 0x80, 0x7A
};
alignas(se::AesBlockSize) constexpr inline const u8 KeyblobKeySource[se::AesBlockSize] = {
0xDF, 0x20, 0x6F, 0x59, 0x44, 0x54, 0xEF, 0xDC, 0x70, 0x74, 0x48, 0x3B, 0x0D, 0xED, 0x9F, 0xD3
};
alignas(se::AesBlockSize) constexpr inline const u8 MasterKeySource[se::AesBlockSize] = {
0xD8, 0xA2, 0x41, 0x0A, 0xC6, 0xC5, 0x90, 0x01, 0xC6, 0x1D, 0x6A, 0x26, 0x7C, 0x51, 0x3F, 0x3C
};
alignas(se::AesBlockSize) constexpr inline const u8 DeviceKeySource[se::AesBlockSize] = {
0x4F, 0x02, 0x5F, 0x0E, 0xB6, 0x6D, 0x11, 0x0E, 0xDC, 0x32, 0x7D, 0x41, 0x86, 0xC2, 0xF4, 0x78
};
alignas(se::AesBlockSize) constexpr inline const u8 DeviceMasterKeySourceKekSource[se::AesBlockSize] = {
0x0C, 0x91, 0x09, 0xDB, 0x93, 0x93, 0x07, 0x81, 0x07, 0x3C, 0xC4, 0x16, 0x22, 0x7C, 0x6C, 0x28
};
alignas(se::AesBlockSize) constexpr inline const u8 DeviceMasterKekSource[se::AesBlockSize] = {
0x2D, 0xC1, 0xF4, 0x8D, 0xF3, 0x5B, 0x69, 0x33, 0x42, 0x10, 0xAC, 0x65, 0xDA, 0x90, 0x46, 0x66
};
alignas(se::AesBlockSize) constexpr inline const u8 DeviceMasterKeySourceSources[pkg1::OldDeviceMasterKeyCount][se::AesBlockSize] = {
{ 0x8B, 0x4E, 0x1C, 0x22, 0x42, 0x07, 0xC8, 0x73, 0x56, 0x94, 0x08, 0x8B, 0xCC, 0x47, 0x0F, 0x5D }, /* 4.x Device Master Key Source Source. */
{ 0x6C, 0xEF, 0xC6, 0x27, 0x8B, 0xEC, 0x8A, 0x91, 0x99, 0xAB, 0x24, 0xAC, 0x4F, 0x1C, 0x8F, 0x1C }, /* 5.x Device Master Key Source Source. */
{ 0x70, 0x08, 0x1B, 0x97, 0x44, 0x64, 0xF8, 0x91, 0x54, 0x9D, 0xC6, 0x84, 0x8F, 0x1A, 0xB2, 0xE4 }, /* 6.x Device Master Key Source Source. */
{ 0x8E, 0x09, 0x1F, 0x7A, 0xBB, 0xCA, 0x6A, 0xFB, 0xB8, 0x9B, 0xD5, 0xC1, 0x25, 0x9C, 0xA9, 0x17 }, /* 6.2.0 Device Master Key Source Source. */
{ 0x8F, 0x77, 0x5A, 0x96, 0xB0, 0x94, 0xFD, 0x8D, 0x28, 0xE4, 0x19, 0xC8, 0x16, 0x1C, 0xDB, 0x3D }, /* 7.0.0 Device Master Key Source Source. */
{ 0x67, 0x62, 0xD4, 0x8E, 0x55, 0xCF, 0xFF, 0x41, 0x31, 0x15, 0x3B, 0x24, 0x0C, 0x7C, 0x07, 0xAE }, /* 8.1.0 Device Master Key Source Source. */
{ 0x4A, 0xC3, 0x4E, 0x14, 0x8B, 0x96, 0x4A, 0xD5, 0xD4, 0x99, 0x73, 0xC4, 0x45, 0xAB, 0x8B, 0x49 }, /* 9.0.0 Device Master Key Source Source. */
{ 0x14, 0xB8, 0x74, 0x12, 0xCB, 0xBD, 0x0B, 0x8F, 0x20, 0xFB, 0x30, 0xDA, 0x27, 0xE4, 0x58, 0x94 }, /* 9.1.0 Device Master Key Source Source. */
{ 0xAA, 0xFD, 0xBC, 0xBB, 0x25, 0xC3, 0xA4, 0xEF, 0xE3, 0xEE, 0x58, 0x53, 0xB7, 0xF8, 0xDD, 0xD6 }, /* 12.1.0 Device Master Key Source Source. */
};
alignas(se::AesBlockSize) constexpr inline const u8 DeviceMasterKekSources[pkg1::OldDeviceMasterKeyCount][se::AesBlockSize] = {
{ 0x88, 0x62, 0x34, 0x6E, 0xFA, 0xF7, 0xD8, 0x3F, 0xE1, 0x30, 0x39, 0x50, 0xF0, 0xB7, 0x5D, 0x5D }, /* 4.x Device Master Kek Source. */
{ 0x06, 0x1E, 0x7B, 0xE9, 0x6D, 0x47, 0x8C, 0x77, 0xC5, 0xC8, 0xE7, 0x94, 0x9A, 0xA8, 0x5F, 0x2E }, /* 5.x Device Master Kek Source. */
{ 0x99, 0xFA, 0x98, 0xBD, 0x15, 0x1C, 0x72, 0xFD, 0x7D, 0x9A, 0xD5, 0x41, 0x00, 0xFD, 0xB2, 0xEF }, /* 6.x Device Master Kek Source. */
{ 0x81, 0x3C, 0x6C, 0xBF, 0x5D, 0x21, 0xDE, 0x77, 0x20, 0xD9, 0x6C, 0xE3, 0x22, 0x06, 0xAE, 0xBB }, /* 6.2.0 Device Master Kek Source. */
{ 0x86, 0x61, 0xB0, 0x16, 0xFA, 0x7A, 0x9A, 0xEA, 0xF6, 0xF5, 0xBE, 0x1A, 0x13, 0x5B, 0x6D, 0x9E }, /* 7.0.0 Device Master Kek Source. */
{ 0xA6, 0x81, 0x71, 0xE7, 0xB5, 0x23, 0x74, 0xB0, 0x39, 0x8C, 0xB7, 0xFF, 0xA0, 0x62, 0x9F, 0x8D }, /* 8.1.0 Device Master Kek Source. */
{ 0x03, 0xE7, 0xEB, 0x43, 0x1B, 0xCF, 0x5F, 0xB5, 0xED, 0xDC, 0x97, 0xAE, 0x21, 0x8D, 0x19, 0xED }, /* 9.0.0 Device Master Kek Source. */
{ 0xCE, 0xFE, 0x41, 0x0F, 0x46, 0x9A, 0x30, 0xD6, 0xF2, 0xE9, 0x0C, 0x6B, 0xB7, 0x15, 0x91, 0x36 }, /* 9.1.0 Device Master Kek Source. */
{ 0xC2, 0x65, 0x34, 0x6E, 0xC7, 0xC6, 0x5D, 0x97, 0x3E, 0x34, 0x5C, 0x6B, 0xB3, 0x7E, 0xC6, 0xE3 }, /* 12.1.0 Device Master Kek Source. */
};
alignas(se::AesBlockSize) constexpr inline const u8 DeviceMasterKekSourcesDev[pkg1::OldDeviceMasterKeyCount][se::AesBlockSize] = {
{ 0xD6, 0xBD, 0x9F, 0xC6, 0x18, 0x09, 0xE1, 0x96, 0x20, 0x39, 0x60, 0xD2, 0x89, 0x83, 0x31, 0x34 }, /* 4.x Device Master Kek Source. */
{ 0x59, 0x2D, 0x20, 0x69, 0x33, 0xB5, 0x17, 0xBA, 0xCF, 0xB1, 0x4E, 0xFD, 0xE4, 0xC2, 0x7B, 0xA8 }, /* 5.x Device Master Kek Source. */
{ 0xF6, 0xD8, 0x59, 0x63, 0x8F, 0x47, 0xCB, 0x4A, 0xD8, 0x74, 0x05, 0x7F, 0x88, 0x92, 0x33, 0xA5 }, /* 6.x Device Master Kek Source. */
{ 0x20, 0xAB, 0xF2, 0x0F, 0x05, 0xE3, 0xDE, 0x2E, 0xA1, 0xFB, 0x37, 0x5E, 0x8B, 0x22, 0x1A, 0x38 }, /* 6.2.0 Device Master Kek Source. */
{ 0x60, 0xAE, 0x56, 0x68, 0x11, 0xE2, 0x0C, 0x99, 0xDE, 0x05, 0xAE, 0x68, 0x78, 0x85, 0x04, 0xAE }, /* 7.0.0 Device Master Kek Source. */
{ 0x94, 0xD6, 0xA8, 0xC0, 0x95, 0xAF, 0xD0, 0xA6, 0x27, 0x53, 0x5E, 0xE5, 0x8E, 0x70, 0x1F, 0x87 }, /* 8.1.0 Device Master Kek Source. */
{ 0x61, 0x6A, 0x88, 0x21, 0xA3, 0x52, 0xB0, 0x19, 0x16, 0x25, 0xA4, 0xE3, 0x4C, 0x54, 0x02, 0x0F }, /* 9.0.0 Device Master Kek Source. */
{ 0x9D, 0xB1, 0xAE, 0xCB, 0xF6, 0xF6, 0xE3, 0xFE, 0xAB, 0x6F, 0xCB, 0xAF, 0x38, 0x03, 0xFC, 0x7B }, /* 9.1.0 Device Master Kek Source. */
{ 0xC4, 0xBB, 0xF3, 0x9F, 0xA3, 0xAA, 0x00, 0x99, 0x7C, 0x97, 0xAD, 0x91, 0x8F, 0xE8, 0x45, 0xCB }, /* 12.1.0 Device Master Kek Source. */
};
alignas(se::AesBlockSize) constexpr inline const u8 MasterKeySources[pkg1::KeyGeneration_Count][se::AesBlockSize] = {
{ 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. */
{ 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. */
{ 0x1E, 0x1E, 0x22, 0xC0, 0x5A, 0x33, 0x3C, 0xB9, 0x0B, 0xA9, 0x03, 0x04, 0xBA, 0xDB, 0x07, 0x57 }, /* Master key 05 encrypted with Master key 06. */
{ 0xA4, 0xD4, 0x52, 0x6F, 0xD1, 0xE4, 0x36, 0xAA, 0x9F, 0xCB, 0x61, 0x27, 0x1C, 0x67, 0x65, 0x1F }, /* Master key 06 encrypted with Master key 07. */
{ 0xEA, 0x60, 0xB3, 0xEA, 0xCE, 0x8F, 0x24, 0x46, 0x7D, 0x33, 0x9C, 0xD1, 0xBC, 0x24, 0x98, 0x29 }, /* Master key 07 encrypted with Master key 08. */
{ 0x4D, 0xD9, 0x98, 0x42, 0x45, 0x0D, 0xB1, 0x3C, 0x52, 0x0C, 0x9A, 0x44, 0xBB, 0xAD, 0xAF, 0x80 }, /* Master key 08 encrypted with Master key 09. */
{ 0xB8, 0x96, 0x9E, 0x4A, 0x00, 0x0D, 0xD6, 0x28, 0xB3, 0xD1, 0xDB, 0x68, 0x5F, 0xFB, 0xE1, 0x2A }, /* Master key 09 encrypted with Master key 0A. */
{ 0xC1, 0x8D, 0x16, 0xBB, 0x2A, 0xE4, 0x1D, 0xD4, 0xC2, 0xC1, 0xB6, 0x40, 0x94, 0x35, 0x63, 0x98 }, /* Master key 0A encrypted with Master key 0B. */
};
alignas(se::AesBlockSize) constexpr inline const u8 MasterKeySourcesDev[pkg1::KeyGeneration_Count][se::AesBlockSize] = {
{ 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. */
{ 0x6F, 0xD2, 0x84, 0x1D, 0x05, 0xEC, 0x40, 0x94, 0x5F, 0x18, 0xB3, 0x81, 0x09, 0x98, 0x8D, 0x4E }, /* Master key 05 encrypted with Master key 06. */
{ 0x37, 0xAF, 0xAB, 0x35, 0x79, 0x09, 0xD9, 0x48, 0x29, 0xD2, 0xDB, 0xA5, 0xA5, 0xF5, 0x30, 0x19 }, /* Master key 06 encrypted with Master key 07. */
{ 0xEC, 0xE1, 0x46, 0x89, 0x37, 0xFD, 0xD2, 0x15, 0x8C, 0x3F, 0x24, 0x82, 0xEF, 0x49, 0x68, 0x04 }, /* Master key 07 encrypted with Master key 08. */
{ 0x43, 0x3D, 0xC5, 0x3B, 0xEF, 0x91, 0x02, 0x21, 0x61, 0x54, 0x63, 0x8A, 0x35, 0xE7, 0xCA, 0xEE }, /* Master key 08 encrypted with Master key 09. */
{ 0x6C, 0x2E, 0xCD, 0xB3, 0x34, 0x61, 0x77, 0xF5, 0xF9, 0xB1, 0xDD, 0x61, 0x98, 0x19, 0x3E, 0xD4 }, /* Master key 09 encrypted with Master key 0A. */
{ 0x21, 0x88, 0x6B, 0x10, 0x9E, 0x83, 0xD6, 0x52, 0xAB, 0x08, 0xDB, 0x6D, 0x39, 0xFF, 0x1C, 0x9C }, /* Master key 0A encrypted with Master key 0B. */
};
alignas(se::AesBlockSize) constinit u8 MasterKeys[pkg1::OldMasterKeyCount][se::AesBlockSize] = {};
alignas(se::AesBlockSize) constinit u8 DeviceMasterKeys[pkg1::OldDeviceMasterKeyCount][se::AesBlockSize] = {};
void DeriveMasterKeys(bool is_prod) {
/* Decrypt the vector chain from current generation to start. */
int slot = pkg1::AesKeySlot_BootloaderMaster;
for (int i = pkg1::KeyGeneration_Current; i > pkg1::KeyGeneration_1_0_0; --i) {
/* Decrypt the old master key. */
se::DecryptAes128(MasterKeys[i - 1], se::AesBlockSize, slot, is_prod ? MasterKeySources[i] : MasterKeySourcesDev[i], se::AesBlockSize);
/* Set the old master key into a temporary keyslot. */
se::SetAesKey(pkg1::AesKeySlot_BootloaderTemporary, MasterKeys[i - 1], se::AesBlockSize);
/* Perform the next decryption with the older master key. */
slot = pkg1::AesKeySlot_BootloaderTemporary;
}
/* Decrypt the final vector. */
alignas(se::AesBlockSize) u8 test_vector[se::AesBlockSize];
se::DecryptAes128(test_vector, se::AesBlockSize, pkg1::AesKeySlot_BootloaderTemporary, is_prod ? MasterKeySources[pkg1::KeyGeneration_1_0_0] : MasterKeySourcesDev[pkg1::KeyGeneration_1_0_0], se::AesBlockSize);
/* Verify the vector chain. */
alignas(se::AesBlockSize) constexpr u8 ZeroBlock[se::AesBlockSize] = {};
if (!crypto::IsSameBytes(ZeroBlock, test_vector, se::AesBlockSize)) {
ShowFatalError("Failed to derive master keys!\n");
}
}
void DeriveDeviceMasterKeys(fuse::SocType soc_type, bool is_prod) {
alignas(se::AesBlockSize) u8 work_block[se::AesBlockSize];
/* Iterate for all generations. */
for (int i = 0; i < pkg1::OldDeviceMasterKeyCount; ++i) {
const int generation = pkg1::KeyGeneration_4_0_0 + i;
/* Load the first master key into the temporary keyslot keyslot. */
se::SetAesKey(pkg1::AesKeySlot_BootloaderTemporary, MasterKeys[pkg1::KeyGeneration_1_0_0], se::AesBlockSize);
/* Decrypt the device master kek for the generation. */
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderTemporary, pkg1::AesKeySlot_BootloaderTemporary, is_prod ? DeviceMasterKekSources[i] : DeviceMasterKekSourcesDev[i], se::AesBlockSize);
/* Decrypt the device master key source into the work block. */
se::DecryptAes128(work_block, se::AesBlockSize, pkg1::AesKeySlot_DeviceMasterKeySourceKekErista, DeviceMasterKeySourceSources[i], se::AesBlockSize);
if (generation == pkg1::KeyGeneration_Current) {
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderDeviceMaster, pkg1::AesKeySlot_BootloaderTemporary, work_block, se::AesBlockSize);
/* If on erista, derive the current device master key into the DeviceMaster key slot. */
if (soc_type == fuse::SocType_Erista) {
se::SetEncryptedAesKey128(pkg1::AesKeySlot_DeviceMaster, pkg1::AesKeySlot_BootloaderTemporary, work_block, se::AesBlockSize);
}
} else {
/* Decrypt the device master key. */
se::DecryptAes128(DeviceMasterKeys[i], se::AesBlockSize, pkg1::AesKeySlot_BootloaderTemporary, work_block, se::AesBlockSize);
/* If on mariko, ensure that we derive device key 0 here. */
if (soc_type == fuse::SocType_Mariko && i == 0) {
se::SetAesKey(pkg1::AesKeySlot_Device, DeviceMasterKeys[i], se::AesBlockSize);
}
}
}
}
alignas(se::AesBlockSize) constexpr inline const u8 GeneratePersonalizedAesKeyKekKekSource[se::AesBlockSize] = {
0x4D, 0x87, 0x09, 0x86, 0xC4, 0x5D, 0x20, 0x72, 0x2F, 0xBA, 0x10, 0x53, 0xDA, 0x92, 0xE8, 0xA9
};
alignas(se::AesBlockSize) constexpr inline const u8 GeneratePersonalizedAesKeyKeyKekSource[se::AesBlockSize] = {
0x89, 0x61, 0x5E, 0xE0, 0x5C, 0x31, 0xB6, 0x80, 0x5F, 0xE5, 0x8F, 0x3D, 0xA2, 0x4F, 0x7A, 0xA8
};
void GeneratePersonalizedAesKeyForBis(int slot, const void *kek_source, const void *key_source, int generation) {
/* Derive kek. */
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderTemporary, PrepareDeviceMasterKey(generation), GeneratePersonalizedAesKeyKekKekSource, se::AesBlockSize);
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderTemporary, pkg1::AesKeySlot_BootloaderTemporary, kek_source, se::AesBlockSize);
/* Derive key. */
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderTemporary, pkg1::AesKeySlot_BootloaderTemporary, GeneratePersonalizedAesKeyKeyKekSource, se::AesBlockSize);
se::SetEncryptedAesKey128(slot, pkg1::AesKeySlot_BootloaderTemporary, key_source, se::AesBlockSize);
}
alignas(se::AesBlockSize) constexpr inline const u8 BisKekSource[se::AesBlockSize] = {
0x34, 0xC1, 0xA0, 0xC4, 0x82, 0x58, 0xF8, 0xB4, 0xFA, 0x9E, 0x5E, 0x6A, 0xDA, 0xFC, 0x7E, 0x4F
};
alignas(se::AesBlockSize) constexpr inline const u8 BisPartitionSystemKeySources[2][se::AesBlockSize] = {
{ 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 },
};
void DeriveBisPartitionSystemKeys() {
/* Determine key generation. */
const int key_generation = std::max<int>(0, static_cast<int>(fuse::GetDeviceUniqueKeyGeneration()) - 1);
/* Generate desired keys. */
GeneratePersonalizedAesKeyForBis(pkg1::AesKeySlot_BootloaderSystem0, BisKekSource, BisPartitionSystemKeySources[0], key_generation);
GeneratePersonalizedAesKeyForBis(pkg1::AesKeySlot_BootloaderSystem1, BisKekSource, BisPartitionSystemKeySources[1], key_generation);
}
}
void DeriveKeysErista() {
/* Get work buffer. */
alignas(se::AesBlockSize) u8 work_buffer[se::AesBlockSize];
/* Get whether we're using dev keys. */
const bool is_prod = fuse::GetHardwareState() == fuse::HardwareState_Production;
/* Derive Keyblob Key. */
se::DecryptAes128(work_buffer, se::AesBlockSize, pkg1::AesKeySlot_Tsec, KeyblobKeySource, se::AesBlockSize);
se::SetEncryptedAesKey128(pkg1::AesKeySlot_Device, pkg1::AesKeySlot_SecureBoot, work_buffer, se::AesBlockSize);
/* Derive Master Kek. */
se::SetEncryptedAesKey128(pkg1::AesKeySlot_MasterKek, is_prod ? pkg1::AesKeySlot_TsecRoot : pkg1::AesKeySlot_TsecRootDev, EristaMasterKekSource, se::AesBlockSize);
/* Derive Master Key. */
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderMaster, pkg1::AesKeySlot_MasterKek, MasterKeySource, se::AesBlockSize);
se::SetEncryptedAesKey128(pkg1::AesKeySlot_Master, pkg1::AesKeySlot_MasterKek, MasterKeySource, se::AesBlockSize);
/* Derive Device Master Key Source Kek, Device Key. */
se::SetEncryptedAesKey128(pkg1::AesKeySlot_DeviceMasterKeySourceKekErista, pkg1::AesKeySlot_Device, DeviceMasterKeySourceKekSource, se::AesBlockSize);
se::SetEncryptedAesKey128(pkg1::AesKeySlot_Device, pkg1::AesKeySlot_Device, DeviceKeySource, se::AesBlockSize);
/* Derive all master keys. */
DeriveMasterKeys(is_prod);
/* Derive all device master keys. */
DeriveDeviceMasterKeys(fuse::SocType_Erista, is_prod);
/* Derive system partition keys. */
DeriveBisPartitionSystemKeys();
}
void DeriveKeysMariko() {
/* Get whether we're using dev keys. */
const bool is_prod = fuse::GetHardwareState() == fuse::HardwareState_Production;
/* Derive Device Master Key Source Kek, Master Key. */
se::SetEncryptedAesKey128(pkg1::AesKeySlot_DeviceMasterKeySourceKekErista, pkg1::AesKeySlot_SecureBoot, DeviceMasterKeySourceKekSource, se::AesBlockSize);
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderMaster, pkg1::AesKeySlot_MarikoKek, is_prod ? MarikoMasterKekSource : MarikoMasterKekSourceDev, se::AesBlockSize);
se::SetEncryptedAesKey128(pkg1::AesKeySlot_BootloaderMaster, pkg1::AesKeySlot_BootloaderMaster, MasterKeySource, se::AesBlockSize);
/* Derive all master keys. */
DeriveMasterKeys(is_prod);
/* Derive all device master keys. */
DeriveDeviceMasterKeys(fuse::SocType_Mariko, is_prod);
/* Derive system partition keys. */
DeriveBisPartitionSystemKeys();
}
int PrepareMasterKey(int generation) {
if (generation == pkg1::KeyGeneration_Current) {
return pkg1::AesKeySlot_BootloaderMaster;
}
se::SetAesKey(pkg1::AesKeySlot_BootloaderTemporary, MasterKeys[generation], se::AesBlockSize);
return pkg1::AesKeySlot_BootloaderTemporary;
}
int PrepareDeviceMasterKey(int generation) {
if (generation == pkg1::KeyGeneration_1_0_0) {
return pkg1::AesKeySlot_Device;
}
if (generation == pkg1::KeyGeneration_Current) {
return pkg1::AesKeySlot_BootloaderDeviceMaster;
}
const int index = std::max(0, generation - pkg1::KeyGeneration_4_0_0);
se::SetAesKey(pkg1::AesKeySlot_BootloaderTemporary, DeviceMasterKeys[index], se::AesBlockSize);
return pkg1::AesKeySlot_BootloaderTemporary;
}
}

27
fusee_cpp/program/source/fusee_key_derivation.hpp Normal file
View file

@ -0,0 +1,27 @@
/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* 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 <vapours.hpp>
#pragma once
namespace ams::nxboot {
void DeriveKeysErista();
void DeriveKeysMariko();
int PrepareMasterKey(int generation);
int PrepareDeviceMasterKey(int generation);
}

30
fusee_cpp/program/source/fusee_setup_horizon.cpp
View file

@ -14,6 +14,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "fusee_key_derivation.hpp"
#include "fusee_secondary_archive.hpp"
#include "fusee_setup_horizon.hpp"
#include "fusee_fatal.hpp"
@ -22,6 +23,24 @@ namespace ams::nxboot {
namespace {
constexpr inline const uintptr_t CLKRST = secmon::MemoryRegionPhysicalDeviceClkRst.GetAddress();
constexpr inline const uintptr_t MC = secmon::MemoryRegionPhysicalDeviceMemoryController.GetAddress();
void DisableArc() {
/* Enable ARC_CLK_OVR_ON. */
reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_LVL2_CLK_GATE_OVRD, CLK_RST_REG_BITS_ENUM(LVL2_CLK_GATE_OVRD_ARC_CLK_OVR_ON, OFF));
/* Enable the ARC. */
reg::ReadWrite(MC + MC_IRAM_REG_CTRL, MC_REG_BITS_ENUM(IRAM_REG_CTRL_IRAM_CFG_WRITE_ACCESS, DISABLED));
/* Set IRAM BOM/TOP to open up access to all mmio. */
reg::Write(MC + MC_IRAM_BOM, 0xFFFFF000);
reg::Write(MC + MC_IRAM_TOM, 0x00000000);
/* Read to ensure our configuration takes. */
reg::Read(MC + MC_IRAM_REG_CTRL);
}
void DeriveAllKeys(const fuse::SocType soc_type) {
/* If on erista, run the TSEC keygen firmware. */
if (soc_type == fuse::SocType_Erista) {
@ -34,7 +53,12 @@ namespace ams::nxboot {
clkrst::SetBpmpClockRate(clkrst::BpmpClockRate_576MHz);
}
ShowFatalError("DeriveAllKeys not fully implemented\n");
/* Derive master/device keys. */
if (soc_type == fuse::SocType_Erista) {
DeriveKeysErista();
} else /* if (soc_type == fuse::SocType_Mariko) */ {
DeriveKeysMariko();
}
}
}
@ -47,6 +71,10 @@ namespace ams::nxboot {
/* Derive all keys. */
DeriveAllKeys(soc_type);
/* Disable the ARC redirect. */
/* NOTE: Devices can no longer access IRAM from this point onwards. */
DisableArc();
AMS_UNUSED(hw_type);
ShowFatalError("SetupAndStartHorizon not fully implemented\n");
}

8
libraries/libexosphere/include/exosphere/pkg1/pkg1_se_key_slots.hpp
View file

@ -41,6 +41,7 @@ namespace ams::pkg1 {
AesKeySlot_SecmonEnd = AesKeySlot_Count,
/* Used only during boot. */
AesKeySlot_TsecRootDev = 11,
AesKeySlot_Tsec = 12,
AesKeySlot_TsecRoot = 13,
AesKeySlot_SecureBoot = 14,
@ -53,6 +54,13 @@ namespace ams::pkg1 {
/* Mariko only keyslots, used during boot. */
AesKeySlot_MarikoKek = 12,
AesKeySlot_MarikoBek = 13,
/* Bootloader keyslots, for fusee only. */
AesKeySlot_BootloaderSystem0 = 2,
AesKeySlot_BootloaderSystem1 = 3,
AesKeySlot_BootloaderDeviceMaster = 6,
AesKeySlot_BootloaderMaster = 7,
AesKeySlot_BootloaderTemporary = 8,
};
enum RsaKeySlot {