mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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109 lines
No EOL
4.2 KiB
C++
109 lines
No EOL
4.2 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <exosphere.hpp>
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#include "secmon_key_storage.hpp"
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namespace ams::secmon {
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namespace {
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constexpr const u8 RsaPublicKey[] = { 0x00, 0x01, 0x00, 0x01 };
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constinit u8 g_rsa_moduli[ImportRsaKey_Count][se::RsaSize] = {};
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constinit bool g_rsa_modulus_committed[ImportRsaKey_Count] = {};
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ALWAYS_INLINE u8 *GetRsaKeyModulus(ImportRsaKey which) {
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return g_rsa_moduli[which];
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}
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ALWAYS_INLINE u8 *GetRsaKeyPrivateExponent(ImportRsaKey which) {
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return ::ams::secmon::impl::GetRsaPrivateExponentStorage(static_cast<int>(which));
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}
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ALWAYS_INLINE bool IsRsaKeyProvisional(ImportRsaKey which) {
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return g_rsa_modulus_committed[which] == false;
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}
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void ClearRsaKeyModulus(ImportRsaKey which) {
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g_rsa_modulus_committed[which] = false;
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std::memset(g_rsa_moduli[which], 0, se::RsaSize);
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}
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ALWAYS_INLINE u8 *GetMasterKeyStorage(int index) {
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return ::ams::secmon::impl::GetMasterKeyStorage(index);
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}
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ALWAYS_INLINE u8 *GetDeviceMasterKeyStorage(int index) {
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return ::ams::secmon::impl::GetDeviceMasterKeyStorage(index);
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}
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}
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void ImportRsaKeyExponent(ImportRsaKey which, const void *src, size_t size) {
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/* If we import an exponent, the modulus is not committed. */
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ClearRsaKeyModulus(which);
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/* Copy the exponent. */
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std::memcpy(GetRsaKeyPrivateExponent(which), src, size);
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}
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void ImportRsaKeyModulusProvisionally(ImportRsaKey which, const void *src, size_t size) {
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std::memcpy(GetRsaKeyModulus(which), src, std::min(static_cast<int>(size), se::RsaSize));
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}
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void CommitRsaKeyModulus(ImportRsaKey which) {
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g_rsa_modulus_committed[which] = true;
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}
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bool LoadRsaKey(int slot, ImportRsaKey which) {
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/* If the key is still provisional, we can't load it. */
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if (IsRsaKeyProvisional(which)) {
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return false;
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}
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se::SetRsaKey(slot, GetRsaKeyModulus(which), se::RsaSize, GetRsaKeyPrivateExponent(which), se::RsaSize);
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return true;
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}
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void LoadProvisionalRsaKey(int slot, ImportRsaKey which) {
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se::SetRsaKey(slot, GetRsaKeyModulus(which), se::RsaSize, GetRsaKeyPrivateExponent(which), se::RsaSize);
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}
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void LoadProvisionalRsaPublicKey(int slot, ImportRsaKey which) {
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se::SetRsaKey(slot, GetRsaKeyModulus(which), se::RsaSize, RsaPublicKey, sizeof(RsaPublicKey));
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}
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void SetMasterKey(int generation, const void *src, size_t size) {
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const int index = generation - pkg1::KeyGeneration_Min;
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se::EncryptAes128(GetMasterKeyStorage(index), se::AesBlockSize, pkg1::AesKeySlot_RandomForKeyStorageWrap, src, size);
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}
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void LoadMasterKey(int slot, int generation) {
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const int index = std::max(0, generation - pkg1::KeyGeneration_Min);
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se::SetEncryptedAesKey128(slot, pkg1::AesKeySlot_RandomForKeyStorageWrap, GetMasterKeyStorage(index), se::AesBlockSize);
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}
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void SetDeviceMasterKey(int generation, const void *src, size_t size) {
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const int index = generation - pkg1::KeyGeneration_4_0_0;
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se::EncryptAes128(GetDeviceMasterKeyStorage(index), se::AesBlockSize, pkg1::AesKeySlot_RandomForKeyStorageWrap, src, size);
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}
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void LoadDeviceMasterKey(int slot, int generation) {
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const int index = std::max(0, generation - pkg1::KeyGeneration_4_0_0);
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se::SetEncryptedAesKey128(slot, pkg1::AesKeySlot_RandomForKeyStorageWrap, GetDeviceMasterKeyStorage(index), se::AesBlockSize);
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}
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} |