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libs: begin adding capacity for doing crypto on generic os (using externally-preset keys)

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This commit is contained in:
Michael Scire 2022-03-07 09:21:13 -08:00 committed by SciresM
parent 6368d8063a
commit 706b8492fd
28 changed files with 1305 additions and 33 deletions
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2
libraries/libstratosphere/include/stratosphere/fssystem/buffers/fssystem_file_system_buddy_heap.hpp
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@ -125,7 +125,7 @@ namespace ams::fssystem {
size_t GetBytesFromOrder(s32 order) const {
AMS_ASSERT(m_free_lists != nullptr);
AMS_ASSERT(0 <= order);
AMS_ASSERT(order < this->GetOrderMax());
AMS_ASSERT(order <= this->GetOrderMax());
return (this->GetBlockSize() << order);
}

19
libraries/libstratosphere/include/stratosphere/fssystem/fssystem_nca_file_system_driver.hpp
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@ -192,7 +192,11 @@ namespace ams::fssystem {
class NcaFileSystemDriver : public ::ams::fs::impl::Newable {
NON_COPYABLE(NcaFileSystemDriver);
NON_MOVEABLE(NcaFileSystemDriver);
#if defined(ATMOSPHERE_BOARD_NINTENDO_NX)
private:
#else
public:
#endif
struct StorageContext {
bool open_raw_storage;
std::shared_ptr<fs::IStorage> body_substorage;
@ -209,8 +213,11 @@ namespace ams::fssystem {
std::shared_ptr<fs::IStorage> fs_data_storage;
std::shared_ptr<fs::IStorage> compressed_storage_meta_storage;
std::shared_ptr<fssystem::CompressedStorage> compressed_storage;
};
/* For tools. */
std::shared_ptr<fs::IStorage> external_original_storage;
};
private:
enum AlignmentStorageRequirement {
/* TODO */
AlignmentStorageRequirement_CacheBlockSize = 0,
@ -235,7 +242,15 @@ namespace ams::fssystem {
AMS_ASSERT(m_hash_generator_factory_selector != nullptr);
}
Result OpenStorage(std::shared_ptr<fs::IStorage> *out, std::shared_ptr<IAsynchronousAccessSplitter> *out_splitter, NcaFsHeaderReader *out_header_reader, s32 fs_index);
Result OpenStorageWithContext(std::shared_ptr<fs::IStorage> *out, std::shared_ptr<IAsynchronousAccessSplitter> *out_splitter, NcaFsHeaderReader *out_header_reader, s32 fs_index, StorageContext *ctx);
Result OpenStorage(std::shared_ptr<fs::IStorage> *out, std::shared_ptr<IAsynchronousAccessSplitter> *out_splitter, NcaFsHeaderReader *out_header_reader, s32 fs_index) {
/* Create a storage context. */
StorageContext ctx{};
/* Open the storage. */
R_RETURN(OpenStorageWithContext(out, out_splitter, out_header_reader, fs_index, std::addressof(ctx)));
}
private:
Result OpenStorageImpl(std::shared_ptr<fs::IStorage> *out, NcaFsHeaderReader *out_header_reader, s32 fs_index, StorageContext *ctx);

6
libraries/libstratosphere/include/stratosphere/spl/smc/spl_secure_monitor_api.hpp
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@ -37,7 +37,7 @@ namespace ams::spl::smc {
Result GenerateRandomBytes(void *out, size_t size);
Result GenerateAesKek(AccessKey *out, const KeySource &source, u32 generation, u32 option);
Result LoadAesKey(u32 keyslot, const AccessKey &access_key, const KeySource &source);
Result ComputeAes(AsyncOperationKey *out_op, u32 dst_addr, u32 mode, const IvCtr &iv_ctr, u32 src_addr, size_t size);
Result ComputeAes(AsyncOperationKey *out_op, u64 dst_addr, u32 mode, const IvCtr &iv_ctr, u64 src_addr, size_t size);
Result GenerateSpecificAesKey(AesKey *out_key, const KeySource &source, u32 generation, u32 which);
Result ComputeCmac(Cmac *out_mac, u32 keyslot, const void *data, size_t size);
Result ReencryptDeviceUniqueData(void *data, size_t size, const AccessKey &access_key_dec, const KeySource &source_dec, const AccessKey &access_key_enc, const KeySource &source_enc, u32 option);
@ -68,4 +68,8 @@ namespace ams::spl::smc {
return SetConfig(key, std::addressof(value), 1);
}
#if !defined(ATMOSPHERE_OS_HORIZON)
void PresetInternalKey(const AesKey *key, u32 generation, bool device);
#endif
}

3
libraries/libstratosphere/libstratosphere.mk
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@ -146,8 +146,11 @@ hos_stratosphere_api.o: CXXFLAGS += -fno-lto
init_operator_new.o: CXXFLAGS += -fno-lto
init_libnx_shim.os.horizon.o: CXXFLAGS += -fno-lto
spl_secure_monitor_api.os.generic.o: CXXFLAGS += -I$(ATMOSPHERE_LIBRARIES_DIR)/libexosphere/include
ifeq ($(ATMOSPHERE_OS_NAME),windows)
os_%.o: CXXFLAGS += -fno-lto
fssystem_%.o: CXXFLAGS += -fno-lto
endif
#---------------------------------------------------------------------------------

2
libraries/libstratosphere/source/fssystem/fssystem_aes_xts_storage.cpp
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@ -31,7 +31,7 @@ namespace ams::fssystem {
template<typename BasePointer>
AesXtsStorage<BasePointer>::AesXtsStorage(BasePointer base, const void *key1, const void *key2, size_t key_size, const void *iv, size_t iv_size, size_t block_size) : m_base_storage(std::move(base)), m_block_size(block_size), m_mutex() {
AMS_ASSERT(base != nullptr);
AMS_ASSERT(m_base_storage != nullptr);
AMS_ASSERT(key1 != nullptr);
AMS_ASSERT(key2 != nullptr);
AMS_ASSERT(iv != nullptr);

14
libraries/libstratosphere/source/fssystem/fssystem_nca_file_system_driver.cpp
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@ -302,16 +302,13 @@ namespace ams::fssystem {
}
Result NcaFileSystemDriver::OpenStorage(std::shared_ptr<fs::IStorage> *out, std::shared_ptr<IAsynchronousAccessSplitter> *out_splitter, NcaFsHeaderReader *out_header_reader, s32 fs_index) {
/* Create a storage context. */
StorageContext ctx{};
Result NcaFileSystemDriver::OpenStorageWithContext(std::shared_ptr<fs::IStorage> *out, std::shared_ptr<IAsynchronousAccessSplitter> *out_splitter, NcaFsHeaderReader *out_header_reader, s32 fs_index, StorageContext *ctx) {
/* Open storage. */
R_TRY(this->OpenStorageImpl(out, out_header_reader, fs_index, std::addressof(ctx)));
R_TRY(this->OpenStorageImpl(out, out_header_reader, fs_index, ctx));
/* If we have a compressed storage, use it as splitter. */
if (ctx.compressed_storage != nullptr) {
*out_splitter = std::move(ctx.compressed_storage);
if (ctx->compressed_storage != nullptr) {
*out_splitter = std::move(ctx->compressed_storage);
} else {
/* Otherwise, allocate a default splitter. */
*out_splitter = fssystem::AllocateShared<DefaultAsynchronousAccessSplitter>();
@ -427,6 +424,9 @@ namespace ams::fssystem {
/* Open original indirectable storage. */
R_TRY(original_driver.OpenIndirectableStorageAsOriginal(std::addressof(original_indirectable_storage), std::addressof(original_header_reader), ctx));
} else if (ctx != nullptr && ctx->external_original_storage != nullptr) {
/* Use the external original storage. */
original_indirectable_storage = ctx->external_original_storage;
} else {
/* Allocate a dummy memory storage as original storage. */
original_indirectable_storage = fssystem::AllocateShared<fs::MemoryStorage>(nullptr, 0);

53
libraries/libstratosphere/source/spl/impl/spl_api_impl.cpp
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@ -229,8 +229,7 @@ namespace ams::spl::impl {
os::InitializeInterruptEvent(std::addressof(g_interrupt), g_interrupt_name, os::EventClearMode_AutoClear);
#else
AMS_UNUSED(g_interrupt_name);
AMS_ABORT("TODO: How should this work?");
AMS_UNUSED(g_interrupt_name, g_interrupt);
#endif
}
@ -277,7 +276,9 @@ namespace ams::spl::impl {
}
void WaitOperation() {
#if defined(ATMOSPHERE_OS_HORIZON)
os::WaitInterruptEvent(std::addressof(g_interrupt));
#endif
}
smc::Result WaitAndGetResult(smc::AsyncOperationKey op_key) {
@ -310,6 +311,7 @@ namespace ams::spl::impl {
u8 out_buffer[crypto::AesEncryptor128::BlockSize];
};
#if defined(ATMOSPHERE_OS_HORIZON)
auto &layout = *reinterpret_cast<DecryptAesLayout *>(g_work_buffer);
layout.crypt_ctx.in.num_entries = 0;
@ -342,8 +344,33 @@ namespace ams::spl::impl {
}
}
os::FlushDataCache(std::addressof(layout.out_buffer), sizeof(layout.out_buffer));
std::memcpy(dst, layout.out_buffer, sizeof(layout.out_buffer));
#else
{
/* Set up buffers. */
u8 in_buffer[crypto::AesEncryptor128::BlockSize];
u8 out_buffer[crypto::AesEncryptor128::BlockSize];
std::memcpy(in_buffer, src, sizeof(in_buffer));
std::scoped_lock lk(g_operation_lock);
/* On generic os, we don't worry about the security engine. */
smc::AsyncOperationKey op_key;
const IvCtr iv_ctr = {};
const u32 mode = smc::GetComputeAesMode(smc::CipherMode::CbcDecrypt, GetPhysicalAesKeySlot(keyslot, true));
smc::Result res = smc::ComputeAes(std::addressof(op_key), reinterpret_cast<uintptr_t>(out_buffer), mode, iv_ctr, reinterpret_cast<uintptr_t>(in_buffer), sizeof(in_buffer));
if (res != smc::Result::Success) {
return res;
}
res = WaitAndGetResult(op_key);
if (res != smc::Result::Success) {
return res;
}
std::memcpy(dst, out_buffer, sizeof(out_buffer));
}
#endif
return smc::Result::Success;
}
@ -642,6 +669,7 @@ namespace ams::spl::impl {
R_UNLESS(src_size <= dst_size, spl::ResultInvalidBufferSize());
R_UNLESS(util::IsAligned(src_size, AesBlockSize), spl::ResultInvalidBufferSize());
#if defined(ATMOSPHERE_OS_HORIZON)
/* We can only map 4_MB aligned buffers for the SE, so determine where to map our buffers. */
const uintptr_t src_addr = reinterpret_cast<uintptr_t>(src);
const uintptr_t dst_addr = reinterpret_cast<uintptr_t>(dst);
@ -697,6 +725,25 @@ namespace ams::spl::impl {
}
}
os::FlushDataCache(dst, dst_size);
#else
{
std::scoped_lock lk(g_operation_lock);
const u32 mode = smc::GetComputeAesMode(smc::CipherMode::Ctr, GetPhysicalAesKeySlot(keyslot, true));
/* On generic os, we don't worry about the security engine. */
smc::AsyncOperationKey op_key;
smc::Result res = smc::ComputeAes(std::addressof(op_key), reinterpret_cast<uintptr_t>(dst), mode, iv_ctr, reinterpret_cast<uintptr_t>(src), src_size);
if (res != smc::Result::Success) {
return smc::ConvertResult(res);
}
res = WaitAndGetResult(op_key);
if (res != smc::Result::Success) {
return smc::ConvertResult(res);
}
}
#endif
return ResultSuccess();
}

499
libraries/libstratosphere/source/spl/smc/spl_secure_monitor_api.os.generic.cpp Normal file
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@ -0,0 +1,499 @@
/*
* Copyright (c) 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 <stratosphere.hpp>
#include <exosphere/pkg1.hpp>
namespace ams::spl::smc {
#define SMC_R_SUCCEEEDED(res) (res == smc::Result::Success)
#define SMC_R_FAILED(res) (res != smc::Result::Success)
#define SMC_R_TRY(res_expr) ({ const auto _tmp_r_try_rc = (res_expr); if (SMC_R_FAILED(_tmp_r_try_rc)) { return _tmp_r_try_rc; } })
#define SMC_R_UNLESS(cond, RES) ({ if (!(cond)) { return smc::Result::RES; }})
namespace {
enum SealKey {
SealKey_LoadAesKey = 0,
SealKey_DecryptDeviceUniqueData = 1,
SealKey_ImportLotusKey = 2,
SealKey_ImportEsDeviceKey = 3,
SealKey_ReencryptDeviceUniqueData = 4,
SealKey_ImportSslKey = 5,
SealKey_ImportEsClientCertKey = 6,
SealKey_Count,
};
enum KeyType {
KeyType_Default = 0,
KeyType_NormalOnly = 1,
KeyType_RecoveryOnly = 2,
KeyType_NormalAndRecovery = 3,
KeyType_Count,
};
struct GenerateAesKekOption {
using IsDeviceUnique = util::BitPack32::Field<0, 1, bool>;
using KeyTypeIndex = util::BitPack32::Field<1, 4, KeyType>;
using SealKeyIndex = util::BitPack32::Field<5, 3, SealKey>;
using Reserved = util::BitPack32::Field<8, 24, u32>;
};
struct ComputeAesOption {
using KeySlot = util::BitPack32::Field<0, 3, int>;
using CipherModeIndex = util::BitPack32::Field<4, 2, CipherMode>;
};
constexpr const u8 KeyTypeSources[KeyType_Count][crypto::AesEncryptor128::KeySize] = {
[KeyType_Default] = { 0x4D, 0x87, 0x09, 0x86, 0xC4, 0x5D, 0x20, 0x72, 0x2F, 0xBA, 0x10, 0x53, 0xDA, 0x92, 0xE8, 0xA9 },
[KeyType_NormalOnly] = { 0x25, 0x03, 0x31, 0xFB, 0x25, 0x26, 0x0B, 0x79, 0x8C, 0x80, 0xD2, 0x69, 0x98, 0xE2, 0x22, 0x77 },
[KeyType_RecoveryOnly] = { 0x76, 0x14, 0x1D, 0x34, 0x93, 0x2D, 0xE1, 0x84, 0x24, 0x7B, 0x66, 0x65, 0x55, 0x04, 0x65, 0x81 },
[KeyType_NormalAndRecovery] = { 0xAF, 0x3D, 0xB7, 0xF3, 0x08, 0xA2, 0xD8, 0xA2, 0x08, 0xCA, 0x18, 0xA8, 0x69, 0x46, 0xC9, 0x0B },
};
constexpr const u8 SealKeyMasks[SealKey_Count][crypto::AesEncryptor128::KeySize] = {
[SealKey_LoadAesKey] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
[SealKey_DecryptDeviceUniqueData] = { 0xA2, 0xAB, 0xBF, 0x9C, 0x92, 0x2F, 0xBB, 0xE3, 0x78, 0x79, 0x9B, 0xC0, 0xCC, 0xEA, 0xA5, 0x74 },
[SealKey_ImportLotusKey] = { 0x57, 0xE2, 0xD9, 0x45, 0xE4, 0x92, 0xF4, 0xFD, 0xC3, 0xF9, 0x86, 0x38, 0x89, 0x78, 0x9F, 0x3C },
[SealKey_ImportEsDeviceKey] = { 0xE5, 0x4D, 0x9A, 0x02, 0xF0, 0x4F, 0x5F, 0xA8, 0xAD, 0x76, 0x0A, 0xF6, 0x32, 0x95, 0x59, 0xBB },
[SealKey_ReencryptDeviceUniqueData] = { 0x59, 0xD9, 0x31, 0xF4, 0xA7, 0x97, 0xB8, 0x14, 0x40, 0xD6, 0xA2, 0x60, 0x2B, 0xED, 0x15, 0x31 },
[SealKey_ImportSslKey] = { 0xFD, 0x6A, 0x25, 0xE5, 0xD8, 0x38, 0x7F, 0x91, 0x49, 0xDA, 0xF8, 0x59, 0xA8, 0x28, 0xE6, 0x75 },
[SealKey_ImportEsClientCertKey] = { 0x89, 0x96, 0x43, 0x9A, 0x7C, 0xD5, 0x59, 0x55, 0x24, 0xD5, 0x24, 0x18, 0xAB, 0x6C, 0x04, 0x61 },
};
constexpr u64 InvalidAsyncKey = 0;
constinit os::SdkMutex g_crypto_lock;
constinit u64 g_async_key = InvalidAsyncKey;
constinit u8 g_async_result_buffer[1_KB];
u64 GenerateRandomU64() {
/* TODO: Can/should we make this cryptographically secure? */
u64 v = -1;
os::GenerateRandomBytes(std::addressof(v), sizeof(v));
return v;
}
constinit u8 g_master_keys[pkg1::KeyGeneration_Max][crypto::AesEncryptor128::KeySize]{};
constinit u8 g_device_keys[pkg1::KeyGeneration_Max][crypto::AesEncryptor128::KeySize]{};
class KeySlotManager {
private:
u8 m_key_slot_contents[pkg1::AesKeySlot_Count][crypto::AesEncryptor256::KeySize];
public:
constexpr KeySlotManager() : m_key_slot_contents{} { /* ... */ }
public:
const u8 *GetKey(s32 slot) const {
return m_key_slot_contents[slot];
}
void LoadAesKey(s32 slot, const AccessKey &access_key, const KeySource &key_source) {
crypto::AesDecryptor128 aes;
aes.Initialize(std::addressof(access_key), sizeof(access_key));
aes.DecryptBlock(m_key_slot_contents[slot], crypto::AesEncryptor128::KeySize, std::addressof(key_source), sizeof(key_source));
}
void LoadPreparedAesKey(s32 slot, const AccessKey &access_key) {
this->SetAesKey128(slot, std::addressof(access_key), sizeof(access_key));
}
s32 PrepareDeviceMasterKey(s32 generation) {
constexpr s32 Slot = pkg1::AesKeySlot_Smc;
this->SetAesKey128(Slot, g_device_keys[generation], crypto::AesEncryptor128::KeySize);
return Slot;
}
s32 PrepareMasterKey(s32 generation) {
constexpr s32 Slot = pkg1::AesKeySlot_Smc;
this->SetAesKey128(Slot, g_master_keys[generation], crypto::AesEncryptor128::KeySize);
return Slot;
}
void SetAesKey128(s32 slot, const void *key, size_t key_size) {
std::memcpy(m_key_slot_contents[slot], key, key_size);
}
void SetEncryptedAesKey128(s32 dst, s32 src, const void *key_source, size_t key_source_size) {
crypto::AesDecryptor128 aes;
aes.Initialize(this->GetKey(src), crypto::AesDecryptor128::KeySize);
aes.DecryptBlock(m_key_slot_contents[dst], crypto::AesEncryptor128::KeySize, key_source, key_source_size);
}
void DecryptAes128(void *dst, size_t dst_size, s32 slot, const void *src, size_t src_size) {
crypto::AesDecryptor128 aes;
aes.Initialize(this->GetKey(slot), crypto::AesDecryptor128::KeySize);
aes.DecryptBlock(dst, dst_size, src, src_size);
}
};
constexpr bool IsUserAesKeySlot(s32 slot) {
return pkg1::IsUserAesKeySlot(slot);
}
constinit KeySlotManager g_key_slot_manager;
}
void PresetInternalKey(const AesKey *key, u32 generation, bool device) {
if (device) {
std::memcpy(g_device_keys[generation], key, sizeof(*key));
} else {
std::memcpy(g_master_keys[generation], key, sizeof(*key));
}
}
//Result SetConfig(AsyncOperationKey *out_op, spl::ConfigItem key, const u64 *value, size_t num_qwords, const void *sign) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::SetConfig);
// args.r[1] = static_cast<u64>(key);
// args.r[2] = reinterpret_cast<u64>(sign);
//
// for (size_t i = 0; i < std::min(static_cast<size_t>(4), num_qwords); i++) {
// args.r[3 + i] = value[i];
// }
// svc::CallSecureMonitor(std::addressof(args));
//
// out_op->value = args.r[1];
// return static_cast<Result>(args.r[0]);
//}
//Result GetConfig(u64 *out, size_t num_qwords, spl::ConfigItem key) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::GetConfig);
// args.r[1] = static_cast<u64>(key);
// svc::CallSecureMonitor(std::addressof(args));
//
// for (size_t i = 0; i < std::min(static_cast<size_t>(4), num_qwords); i++) {
// out[i] = args.r[1 + i];
// }
// return static_cast<Result>(args.r[0]);
//}
Result GetResult(Result *out, AsyncOperationKey op) {
SMC_R_UNLESS(g_async_key != InvalidAsyncKey, NoAsyncOperation);
SMC_R_UNLESS(g_async_key == op.value, InvalidAsyncOperation);
g_async_key = InvalidAsyncKey;
*out = smc::Result::Success;
return smc::Result::Success;
}
Result GetResultData(Result *out, void *out_buf, size_t out_buf_size, AsyncOperationKey op) {
SMC_R_UNLESS(g_async_key != InvalidAsyncKey, NoAsyncOperation);
SMC_R_UNLESS(g_async_key == op.value, InvalidAsyncOperation);
SMC_R_UNLESS(out_buf_size <= sizeof(g_async_result_buffer), InvalidArgument);
g_async_key = InvalidAsyncKey;
std::memcpy(out_buf, g_async_result_buffer, out_buf_size);
*out = smc::Result::Success;
return smc::Result::Success;
}
//Result ModularExponentiate(AsyncOperationKey *out_op, const void *base, const void *exp, size_t exp_size, const void *mod) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::ModularExponentiate);
// args.r[1] = reinterpret_cast<u64>(base);
// args.r[2] = reinterpret_cast<u64>(exp);
// args.r[3] = reinterpret_cast<u64>(mod);
// args.r[4] = exp_size;
// svc::CallSecureMonitor(std::addressof(args));
//
// out_op->value = args.r[1];
// return static_cast<Result>(args.r[0]);
//}
Result GenerateRandomBytes(void *out, size_t size) {
/* TODO: Cryptographically secure? */
os::GenerateRandomBytes(out, size);
return smc::Result::Success;
}
Result GenerateAesKek(AccessKey *out, const KeySource &source, u32 user_generation, u32 option_value) {
std::scoped_lock lk(g_crypto_lock);
const int pkg1_generation = std::max<int>(static_cast<int>(user_generation) - 1, pkg1::KeyGeneration_1_0_0);
const util::BitPack32 option = { option_value };
const bool is_device_unique = option.Get<GenerateAesKekOption::IsDeviceUnique>();
const auto key_type = option.Get<GenerateAesKekOption::KeyTypeIndex>();
const auto seal_key = option.Get<GenerateAesKekOption::SealKeyIndex>();
const u32 reserved = option.Get<GenerateAesKekOption::Reserved>();
/* Validate arguments. */
SMC_R_UNLESS(reserved == 0, InvalidArgument);
if (is_device_unique) {
SMC_R_UNLESS(pkg1::IsValidDeviceUniqueKeyGeneration(pkg1_generation), InvalidArgument);
} else {
SMC_R_UNLESS(pkg1_generation <= pkg1::KeyGeneration_Max, InvalidArgument);
}
SMC_R_UNLESS(0 <= key_type && key_type < KeyType_Count, InvalidArgument);
SMC_R_UNLESS(0 <= seal_key && seal_key < SealKey_Count, InvalidArgument);
/* Here N might check if key type is normal or recovery only, but we're not going to enforce that. */
u8 static_source[crypto::AesEncryptor128::KeySize];
/* Derive the static source. */
for (size_t i = 0; i < sizeof(static_source); ++i) {
static_source[i] = KeyTypeSources[key_type][i] ^ SealKeyMasks[seal_key][i];
}
/* Get the slot. */
const int slot = is_device_unique ? g_key_slot_manager.PrepareDeviceMasterKey(pkg1_generation) : g_key_slot_manager.PrepareMasterKey(pkg1_generation);
/* Derive a static generation kek. */
g_key_slot_manager.SetEncryptedAesKey128(pkg1::AesKeySlot_Smc, slot, static_source, sizeof(static_source));
/* Decrypt the input using the static-derived key. */
g_key_slot_manager.DecryptAes128(out, sizeof(*out), pkg1::AesKeySlot_Smc, std::addressof(source), sizeof(source));
return smc::Result::Success;
}
Result LoadAesKey(u32 keyslot, const AccessKey &access_key, const KeySource &source) {
std::scoped_lock lk(g_crypto_lock);
/* Check args. */
SMC_R_UNLESS(IsUserAesKeySlot(keyslot), InvalidArgument);
/* Unseal the access key. */
g_key_slot_manager.SetAesKey128(pkg1::AesKeySlot_Smc, std::addressof(access_key), sizeof(access_key));
/* Derive the key. */
g_key_slot_manager.SetEncryptedAesKey128(keyslot, pkg1::AesKeySlot_Smc, std::addressof(source), sizeof(source));
return smc::Result::Success;
}
Result ComputeAes(AsyncOperationKey *out_op, u64 dst_addr, u32 mode, const IvCtr &iv_ctr, u64 src_addr, size_t size) {
std::scoped_lock lk(g_crypto_lock);
/* Check size. */
SMC_R_UNLESS(util::IsAligned(size, crypto::AesEncryptor128::BlockSize), InvalidArgument);
const util::BitPack32 option = { mode };
const int slot = option.Get<ComputeAesOption::KeySlot>();
const auto cipher_mode = option.Get<ComputeAesOption::CipherModeIndex>();
SMC_R_UNLESS(IsUserAesKeySlot(slot), InvalidArgument);
/* Set a random async key. */
g_async_key = GenerateRandomU64();
switch (cipher_mode) {
case CipherMode::CbcEncrypt: crypto::EncryptAes128Cbc(reinterpret_cast<void *>(dst_addr), size, g_key_slot_manager.GetKey(slot), crypto::AesEncryptor128::KeySize, iv_ctr.data, sizeof(iv_ctr.data), reinterpret_cast<const void *>(src_addr), size); break;
case CipherMode::CbcDecrypt: crypto::DecryptAes128Cbc(reinterpret_cast<void *>(dst_addr), size, g_key_slot_manager.GetKey(slot), crypto::AesEncryptor128::KeySize, iv_ctr.data, sizeof(iv_ctr.data), reinterpret_cast<const void *>(src_addr), size); break;
case CipherMode::Ctr: crypto::EncryptAes128Ctr(reinterpret_cast<void *>(dst_addr), size, g_key_slot_manager.GetKey(slot), crypto::AesEncryptor128::KeySize, iv_ctr.data, sizeof(iv_ctr.data), reinterpret_cast<const void *>(src_addr), size); break;
default:
return smc::Result::InvalidArgument;
}
*out_op = AsyncOperationKey{g_async_key};
return smc::Result::Success;
}
//Result GenerateSpecificAesKey(AesKey *out_key, const KeySource &source, u32 generation, u32 which) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::GenerateSpecificAesKey);
// args.r[1] = source.data64[0];
// args.r[2] = source.data64[1];
// args.r[3] = generation;
// args.r[4] = which;
// svc::CallSecureMonitor(std::addressof(args));
//
// out_key->data64[0] = args.r[1];
// out_key->data64[1] = args.r[2];
// return static_cast<Result>(args.r[0]);
//}
//Result ComputeCmac(Cmac *out_mac, u32 keyslot, const void *data, size_t size) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::ComputeCmac);
// args.r[1] = keyslot;
// args.r[2] = reinterpret_cast<u64>(data);
// args.r[3] = size;
// svc::CallSecureMonitor(std::addressof(args));
//
// out_mac->data64[0] = args.r[1];
// out_mac->data64[1] = args.r[2];
// return static_cast<Result>(args.r[0]);
//}
//Result ReencryptDeviceUniqueData(void *data, size_t size, const AccessKey &access_key_dec, const KeySource &source_dec, const AccessKey &access_key_enc, const KeySource &source_enc, u32 option) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::ReencryptDeviceUniqueData);
// args.r[1] = reinterpret_cast<u64>(std::addressof(access_key_dec));
// args.r[2] = reinterpret_cast<u64>(std::addressof(access_key_enc));
// args.r[3] = option;
// args.r[4] = reinterpret_cast<u64>(data);
// args.r[5] = size;
// args.r[6] = reinterpret_cast<u64>(std::addressof(source_dec));
// args.r[7] = reinterpret_cast<u64>(std::addressof(source_enc));
// svc::CallSecureMonitor(std::addressof(args));
//
// return static_cast<Result>(args.r[0]);
//}
//Result DecryptDeviceUniqueData(void *data, size_t size, const AccessKey &access_key, const KeySource &source, DeviceUniqueDataMode mode) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::DecryptDeviceUniqueData);
// args.r[1] = access_key.data64[0];
// args.r[2] = access_key.data64[1];
// args.r[3] = static_cast<u32>(mode);
// args.r[4] = reinterpret_cast<u64>(data);
// args.r[5] = size;
// args.r[6] = source.data64[0];
// args.r[7] = source.data64[1];
// svc::CallSecureMonitor(std::addressof(args));
//
// return static_cast<Result>(args.r[0]);
//}
//Result ModularExponentiateWithStorageKey(AsyncOperationKey *out_op, const void *base, const void *mod, ModularExponentiateWithStorageKeyMode mode) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::ModularExponentiateWithStorageKey);
// args.r[1] = reinterpret_cast<u64>(base);
// args.r[2] = reinterpret_cast<u64>(mod);
// args.r[3] = static_cast<u32>(mode);
// svc::CallSecureMonitor(std::addressof(args));
//
// out_op->value = args.r[1];
// return static_cast<Result>(args.r[0]);
//}
//Result PrepareEsDeviceUniqueKey(AsyncOperationKey *out_op, const void *base, const void *mod, const void *label_digest, size_t label_digest_size, u32 option) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::PrepareEsDeviceUniqueKey);
// args.r[1] = reinterpret_cast<u64>(base);
// args.r[2] = reinterpret_cast<u64>(mod);
// std::memset(std::addressof(args.r[3]), 0, 4 * sizeof(args.r[3]));
// std::memcpy(std::addressof(args.r[3]), label_digest, std::min(static_cast<size_t>(4 * sizeof(args.r[3])), label_digest_size));
// args.r[7] = option;
// svc::CallSecureMonitor(std::addressof(args));
//
// out_op->value = args.r[1];
// return static_cast<Result>(args.r[0]);
//}
Result LoadPreparedAesKey(u32 keyslot, const AccessKey &access_key) {
std::scoped_lock lk(g_crypto_lock);
/* Check args. */
SMC_R_UNLESS(IsUserAesKeySlot(keyslot), InvalidArgument);
/* Unseal the key. */
g_key_slot_manager.SetAesKey128(keyslot, std::addressof(access_key), sizeof(access_key));
return smc::Result::Success;
}
//Result PrepareCommonEsTitleKey(AccessKey *out, const KeySource &source, u32 generation) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::PrepareCommonEsTitleKey);
// args.r[1] = source.data64[0];
// args.r[2] = source.data64[1];
// args.r[3] = generation;
// svc::CallSecureMonitor(std::addressof(args));
//
// out->data64[0] = args.r[1];
// out->data64[1] = args.r[2];
// return static_cast<Result>(args.r[0]);
//}
//
///* Deprecated functions. */
//Result LoadEsDeviceKey(const void *data, size_t size, const AccessKey &access_key, const KeySource &source, u32 option) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::LoadEsDeviceKey);
// args.r[1] = access_key.data64[0];
// args.r[2] = access_key.data64[1];
// args.r[3] = option;
// args.r[4] = reinterpret_cast<u64>(data);
// args.r[5] = size;
// args.r[6] = source.data64[0];
// args.r[7] = source.data64[1];
// svc::CallSecureMonitor(std::addressof(args));
//
// return static_cast<Result>(args.r[0]);
//}
//Result DecryptDeviceUniqueData(size_t *out_size, void *data, size_t size, const AccessKey &access_key, const KeySource &source, u32 option) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::DecryptDeviceUniqueData);
// args.r[1] = access_key.data64[0];
// args.r[2] = access_key.data64[1];
// args.r[3] = option;
// args.r[4] = reinterpret_cast<u64>(data);
// args.r[5] = size;
// args.r[6] = source.data64[0];
// args.r[7] = source.data64[1];
// svc::CallSecureMonitor(std::addressof(args));
//
// *out_size = static_cast<size_t>(args.r[1]);
// return static_cast<Result>(args.r[0]);
//}
//Result DecryptAndStoreGcKey(const void *data, size_t size, const AccessKey &access_key, const KeySource &source, u32 option) {
// svc::SecureMonitorArguments args;
//
// args.r[0] = static_cast<u64>(FunctionId::DecryptAndStoreGcKey);
// args.r[1] = access_key.data64[0];
// args.r[2] = access_key.data64[1];
// args.r[3] = option;
// args.r[4] = reinterpret_cast<u64>(data);
// args.r[5] = size;
// args.r[6] = source.data64[0];
// args.r[7] = source.data64[1];
// svc::CallSecureMonitor(std::addressof(args));
//
// return static_cast<Result>(args.r[0]);
//}
Result AtmosphereCopyToIram(uintptr_t, const void *, size_t ) {
AMS_ABORT("AtmosphereCopyToIram not supported on generic SecureMonitor api.");
}
Result AtmosphereCopyFromIram(void *, uintptr_t, size_t) {
AMS_ABORT("AtmosphereCopyToIram not supported on generic SecureMonitor api.");
}
Result AtmosphereReadWriteRegister(uint64_t, uint32_t, uint32_t, uint32_t *) {
AMS_ABORT("AtmosphereReadWriteRegister not supported on generic SecureMonitor api.");
}
Result AtmosphereGetEmummcConfig(void *out_config, void *out_paths, u32 storage_id) {
/* TODO: We actually probably should support this one on generic? */
AMS_UNUSED(out_config, out_paths, storage_id);
AMS_ABORT("AtmosphereGetEmummcConfig not supported on generic SecureMonitor api.");
}
}

6
libraries/libstratosphere/source/spl/smc/spl_secure_monitor_api.os.horizon.cpp
View File

@ -126,15 +126,15 @@ namespace ams::spl::smc {
return static_cast<Result>(args.r[0]);
}
Result ComputeAes(AsyncOperationKey *out_op, u32 dst_addr, u32 mode, const IvCtr &iv_ctr, u32 src_addr, size_t size) {
Result ComputeAes(AsyncOperationKey *out_op, u64 dst_addr, u32 mode, const IvCtr &iv_ctr, u64 src_addr, size_t size) {
svc::SecureMonitorArguments args;
args.r[0] = static_cast<u64>(FunctionId::ComputeAes);
args.r[1] = mode;
args.r[2] = iv_ctr.data64[0];
args.r[3] = iv_ctr.data64[1];
args.r[4] = src_addr;
args.r[5] = dst_addr;
args.r[4] = static_cast<u32>(src_addr);
args.r[5] = static_cast<u32>(dst_addr);
args.r[6] = size;
svc::CallSecureMonitor(std::addressof(args));

106
libraries/libstratosphere/source/spl/spl_api.os.generic.cpp Normal file
View File

@ -0,0 +1,106 @@
/*
* Copyright (c) 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 <stratosphere.hpp>
namespace ams::spl {
namespace {
bool InitializeImpl() {
/* Initialize implementation api. */
impl::Initialize();
return true;
}
void EnsureInitialized() {
AMS_FUNCTION_LOCAL_STATIC(bool, s_initialized, InitializeImpl());
AMS_ABORT_UNLESS(s_initialized);
}
Result WaitAvailableKeySlotAndExecute(auto f) {
os::SystemEvent *event = nullptr;
while (true) {
R_TRY_CATCH(static_cast<::ams::Result>(f())) {
R_CATCH(spl::ResultNoAvailableKeySlot) {
if (event == nullptr) {
event = impl::GetAesKeySlotAvailableEvent();
}
event->Wait();
continue;
}
} R_END_TRY_CATCH;
R_SUCCEED();
}
}
}
Result AllocateAesKeySlot(s32 *out_slot) {
EnsureInitialized();
R_RETURN(WaitAvailableKeySlotAndExecute([&]() -> Result {
R_RETURN(impl::AllocateAesKeySlot(out_slot));
}));
}
Result DeallocateAesKeySlot(s32 slot) {
EnsureInitialized();
R_RETURN(impl::DeallocateAesKeySlot(slot));
}
Result GenerateAesKek(AccessKey *out_access_key, const void *key_source, size_t key_source_size, s32 generation, u32 option) {
EnsureInitialized();
/* Check key size (assumed valid). */
AMS_ASSERT(key_source_size == sizeof(KeySource));
AMS_UNUSED(key_source_size);
/* AccessKey *out_access_key, const KeySource &key_source, u32 generation, u32 option */
R_RETURN(impl::GenerateAesKek(out_access_key, *static_cast<const KeySource *>(key_source), generation, option));
}
Result LoadAesKey(s32 slot, const AccessKey &access_key, const void *key_source, size_t key_source_size) {
AMS_ASSERT(key_source_size == sizeof(KeySource));
AMS_UNUSED(key_source_size);
R_RETURN(impl::LoadAesKey(slot, access_key, *static_cast<const KeySource *>(key_source)));
}
Result GenerateAesKey(void *dst, size_t dst_size, const AccessKey &access_key, const void *key_source, size_t key_source_size) {
AMS_ASSERT(dst_size >= sizeof(AesKey));
AMS_ASSERT(key_source_size == sizeof(KeySource));
AMS_UNUSED(dst_size, key_source_size);
R_RETURN(WaitAvailableKeySlotAndExecute([&]() -> Result {
R_RETURN(impl::GenerateAesKey(static_cast<AesKey *>(dst), access_key, *static_cast<const KeySource *>(key_source)));
}));
}
Result ComputeCtr(void *dst, size_t dst_size, s32 slot, const void *src, size_t src_size, const void *iv, size_t iv_size) {
AMS_ASSERT(iv_size >= sizeof(IvCtr));
AMS_UNUSED(iv_size);
AMS_ASSERT(dst_size >= src_size);
R_RETURN(impl::ComputeCtr(dst, dst_size, slot, src, src_size, *static_cast<const IvCtr *>(iv)));
}
Result LoadPreparedAesKey(s32 slot, const AccessKey &access_key) {
R_RETURN(impl::LoadPreparedAesKey(slot, access_key));
}
}

5
libraries/libstratosphere/source/spl/spl_api.cpp → libraries/libstratosphere/source/spl/spl_api.os.horizon.cpp
View File

@ -17,9 +17,6 @@
namespace ams::spl {
/* BIG TODO: How to deal with this? */
#if defined(ATMOSPHERE_OS_HORIZON)
namespace {
enum class InitializeMode {
@ -298,6 +295,4 @@ namespace ams::spl {
}
}
#endif
}

1
libraries/libvapours/include/vapours/crypto.hpp
View File

@ -25,6 +25,7 @@
#include <vapours/crypto/crypto_sha3_generator.hpp>
#include <vapours/crypto/crypto_aes_encryptor.hpp>
#include <vapours/crypto/crypto_aes_decryptor.hpp>
#include <vapours/crypto/crypto_aes_cbc_encryptor_decryptor.hpp>
#include <vapours/crypto/crypto_aes_ctr_encryptor_decryptor.hpp>
#include <vapours/crypto/crypto_aes_xts_encryptor_decryptor.hpp>
#include <vapours/crypto/crypto_aes_gcm_encryptor.hpp>

81
libraries/libvapours/include/vapours/crypto/crypto_aes_cbc_encryptor_decryptor.hpp Normal file
View File

@ -0,0 +1,81 @@
/*
* Copyright (c) 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/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util.hpp>
#include <vapours/crypto/crypto_aes_encryptor.hpp>
#include <vapours/crypto/crypto_cbc_encryptor.hpp>
#include <vapours/crypto/crypto_cbc_decryptor.hpp>
namespace ams::crypto {
namespace impl {
template<template<typename> typename _CbcImpl, typename _AesImpl>
class AesCbcCryptor {
NON_COPYABLE(AesCbcCryptor);
NON_MOVEABLE(AesCbcCryptor);
private:
using AesImpl = _AesImpl;
using CbcImpl = _CbcImpl<AesImpl>;
public:
static constexpr size_t KeySize = AesImpl::KeySize;
static constexpr size_t BlockSize = CbcImpl::BlockSize;
static constexpr size_t IvSize = CbcImpl::BlockSize;
private:
AesImpl m_aes_impl;
CbcImpl m_cbc_impl;
public:
AesCbcCryptor() { /* ... */ }
void Initialize(const void *key, size_t key_size, const void *iv, size_t iv_size) {
AMS_ASSERT(key_size == KeySize);
AMS_ASSERT(iv_size == IvSize);
m_aes_impl.Initialize(key, key_size);
m_cbc_impl.Initialize(std::addressof(m_aes_impl), iv, iv_size);
}
size_t Update(void *dst, size_t dst_size, const void *src, size_t src_size) {
return m_cbc_impl.Update(dst, dst_size, src, src_size);
}
size_t GetBufferedDataSize() const {
return m_cbc_impl.GetBufferedDataSize();
}
};
}
using Aes128CbcEncryptor = impl::AesCbcCryptor<CbcEncryptor, AesEncryptor128>;
using Aes192CbcEncryptor = impl::AesCbcCryptor<CbcEncryptor, AesEncryptor192>;
using Aes256CbcEncryptor = impl::AesCbcCryptor<CbcEncryptor, AesEncryptor256>;
using Aes128CbcDecryptor = impl::AesCbcCryptor<CbcDecryptor, AesDecryptor128>;
using Aes192CbcDecryptor = impl::AesCbcCryptor<CbcDecryptor, AesDecryptor192>;
using Aes256CbcDecryptor = impl::AesCbcCryptor<CbcDecryptor, AesDecryptor256>;
size_t EncryptAes128Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size);
size_t EncryptAes192Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size);
size_t EncryptAes256Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size);
size_t DecryptAes128Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size);
size_t DecryptAes192Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size);
size_t DecryptAes256Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size);
}

55
libraries/libvapours/include/vapours/crypto/crypto_cbc_decryptor.hpp Normal file
View File

@ -0,0 +1,55 @@
/*
* Copyright (c) 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/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util.hpp>
#include <vapours/crypto/impl/crypto_cbc_mode_impl.hpp>
namespace ams::crypto {
/* TODO: C++20 BlockCipher concept */
template<typename BlockCipher>
class CbcDecryptor {
NON_COPYABLE(CbcDecryptor);
NON_MOVEABLE(CbcDecryptor);
private:
using Impl = impl::CbcModeImpl<BlockCipher>;
public:
static constexpr size_t KeySize = Impl::KeySize;
static constexpr size_t BlockSize = Impl::BlockSize;
static constexpr size_t IvSize = Impl::IvSize;
private:
Impl m_impl;
public:
CbcDecryptor() { /* ... */ }
void Initialize(const BlockCipher *cipher, const void *iv, size_t iv_size) {
m_impl.Initialize(cipher, iv, iv_size);
}
size_t Update(void *dst, size_t dst_size, const void *src, size_t src_size) {
return m_impl.UpdateDecryption(dst, dst_size, src, src_size);
}
size_t GetBufferedDataSize() const {
return m_impl.GetBufferedDataSize();
}
};
}

55
libraries/libvapours/include/vapours/crypto/crypto_cbc_encryptor.hpp Normal file
View File

@ -0,0 +1,55 @@
/*
* Copyright (c) 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/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util.hpp>
#include <vapours/crypto/impl/crypto_cbc_mode_impl.hpp>
namespace ams::crypto {
/* TODO: C++20 BlockCipher concept */
template<typename BlockCipher>
class CbcEncryptor {
NON_COPYABLE(CbcEncryptor);
NON_MOVEABLE(CbcEncryptor);
private:
using Impl = impl::CbcModeImpl<BlockCipher>;
public:
static constexpr size_t KeySize = Impl::KeySize;
static constexpr size_t BlockSize = Impl::BlockSize;
static constexpr size_t IvSize = Impl::IvSize;
private:
Impl m_impl;
public:
CbcEncryptor() { /* ... */ }
void Initialize(const BlockCipher *cipher, const void *iv, size_t iv_size) {
m_impl.Initialize(cipher, iv, iv_size);
}
size_t Update(void *dst, size_t dst_size, const void *src, size_t src_size) {
return m_impl.UpdateEncryption(dst, dst_size, src, src_size);
}
size_t GetBufferedDataSize() const {
return m_impl.GetBufferedDataSize();
}
};
}

6
libraries/libvapours/include/vapours/crypto/impl/crypto_aes_impl.hpp
View File

@ -13,11 +13,11 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util.hpp>
#include <vapours/crypto/impl/crypto_block_cipher.hpp>
namespace ams::crypto::impl {
@ -50,6 +50,8 @@ namespace ams::crypto::impl {
#endif
};
/* static_assert(HashFunction<Sha1Impl>); */
static_assert(BlockCipher<AesImpl<16>>);
static_assert(BlockCipher<AesImpl<24>>);
static_assert(BlockCipher<AesImpl<32>>);
}

33
libraries/libvapours/include/vapours/crypto/impl/crypto_block_cipher.hpp Normal file
View File

@ -0,0 +1,33 @@
/*
* Copyright (c) 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/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util.hpp>
#include <vapours/crypto/crypto_memory_compare.hpp>
#include <vapours/crypto/crypto_memory_clear.hpp>
namespace ams::crypto::impl {
template<typename T>
concept BlockCipher = requires(T &t, const void *cv, void *v, size_t sz, bool b) {
{ T::BlockSize } -> std::convertible_to<size_t>;
{ t.EncryptBlock(v, sz, cv, sz) } -> std::same_as<void>;
{ t.DecryptBlock(v, sz, cv, sz) } -> std::same_as<void>;
};
}

200
libraries/libvapours/include/vapours/crypto/impl/crypto_cbc_mode_impl.hpp Normal file
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@ -0,0 +1,200 @@
/*
* Copyright (c) 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/>.
*/
#pragma once
#include <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util.hpp>
#include <vapours/crypto/crypto_memory_clear.hpp>
#include <vapours/crypto/crypto_aes_encryptor.hpp>
namespace ams::crypto::impl {
template<typename BlockCipher>
class CbcModeImpl {
NON_COPYABLE(CbcModeImpl);
NON_MOVEABLE(CbcModeImpl);
public:
static constexpr size_t KeySize = BlockCipher::KeySize;
static constexpr size_t BlockSize = BlockCipher::BlockSize;
static constexpr size_t IvSize = BlockCipher::BlockSize;
private:
enum State {
State_None,
State_Initialized,
};
private:
const BlockCipher *m_block_cipher;
u8 m_iv[IvSize];
u8 m_buffer[BlockSize];
size_t m_buffered_bytes;
State m_state;
public:
CbcModeImpl() : m_state(State_None) { /* ... */ }
~CbcModeImpl() {
ClearMemory(this, sizeof(*this));
}
void Initialize(const BlockCipher *block_cipher, const void *iv, size_t iv_size) {
AMS_ASSERT(iv_size == IvSize);
AMS_UNUSED(iv_size);
m_block_cipher = block_cipher;
std::memcpy(m_iv, iv, IvSize);
m_buffered_bytes = 0;
m_state = State_Initialized;
}
size_t GetBufferedDataSize() const {
return m_buffered_bytes;
}
size_t UpdateEncryption(void *dst, size_t dst_size, const void *src, size_t src_size) {
AMS_ASSERT(dst_size >= ((src_size + this->GetBufferedDataSize()) / BlockSize) * BlockSize);
AMS_ASSERT(m_state == State_Initialized);
return this->Update(dst, dst_size, src, src_size, [&] (u8 *d, u8 *i, const u8 *s, size_t n) ALWAYS_INLINE_LAMBDA {
this->EncryptBlocks(d, i, s, n);
});
}
size_t UpdateDecryption(void *dst, size_t dst_size, const void *src, size_t src_size) {
AMS_ASSERT(dst_size >= ((src_size + this->GetBufferedDataSize()) / BlockSize) * BlockSize);
AMS_ASSERT(m_state == State_Initialized);
return this->Update(dst, dst_size, src, src_size, [&] (u8 *d, u8 *i, const u8 *s, size_t n) ALWAYS_INLINE_LAMBDA {
this->DecryptBlocks(d, i, s, n);
});
}
private:
size_t Update(void *_dst, size_t dst_size, const void *_src, size_t src_size, auto ProcessBlocks) {
AMS_UNUSED(dst_size);
u8 *dst = static_cast<u8 *>(_dst);
const u8 *src = static_cast<const u8 *>(_src);
size_t remaining = src_size;
size_t processed = 0;
if (m_buffered_bytes > 0) {
const size_t copy_size = std::min(BlockSize - m_buffered_bytes, remaining);
std::memcpy(m_buffer + m_buffered_bytes, src, copy_size);
src += copy_size;
remaining -= copy_size;
m_buffered_bytes += copy_size;
if (m_buffered_bytes == BlockSize) {
ProcessBlocks(dst, m_iv, m_buffer, 1);
processed += BlockSize;
dst += BlockSize;
m_buffered_bytes = 0;
}
}
if (remaining >= BlockSize) {
const size_t num_blocks = remaining / BlockSize;
ProcessBlocks(dst, m_iv, src, num_blocks);
const size_t processed_size = num_blocks * BlockSize;
dst += processed_size;
src += processed_size;
remaining -= processed_size;
processed += processed_size;
}
if (remaining > 0) {
std::memcpy(m_buffer, src, remaining);
m_buffered_bytes = remaining;
}
return processed;
}
void EncryptBlocks(u8 *dst, u8 *iv, const u8 *src, size_t num_blocks) {
const u8 *cur_iv = iv;
u8 block[BlockSize];
while (num_blocks--) {
for (size_t i = 0; i < BlockSize; ++i) {
block[i] = src[i] ^ cur_iv[i];
}
m_block_cipher->EncryptBlock(dst, BlockSize, block, BlockSize);
cur_iv = dst;
src += BlockSize;
dst += BlockSize;
}
if (iv != cur_iv) {
std::memcpy(iv, cur_iv, BlockSize);
}
}
void DecryptBlocks(u8 *dst, u8 *iv, const u8 *src, size_t num_blocks) {
u8 next_iv[BlockSize];
std::memcpy(next_iv, src + ((num_blocks - 1) * BlockSize), BlockSize);
if (src == dst) {
src = src + ((num_blocks - 1) * BlockSize);
dst = dst + ((num_blocks - 1) * BlockSize);
const u8 *cur_iv = (num_blocks == 1) ? iv : src - BlockSize;
while (num_blocks-- > 1) {
m_block_cipher->DecryptBlock(dst, BlockSize, src, BlockSize);
for (size_t i = 0; i < BlockSize; ++i) {
dst[i] ^= cur_iv[i];
}
cur_iv -= BlockSize;
src -= BlockSize;
dst -= BlockSize;
}
m_block_cipher->DecryptBlock(dst, BlockSize, src, BlockSize);
for (size_t i = 0; i < BlockSize; ++i) {
dst[i] ^= iv[i];
}
} else {
const u8 *cur_iv = iv;
while (num_blocks-- > 0) {
m_block_cipher->DecryptBlock(dst, BlockSize, src, BlockSize);
for (size_t i = 0; i < BlockSize; ++i) {
dst[i] ^= cur_iv[i];
}
cur_iv = src;
src += BlockSize;
dst += BlockSize;
}
}
std::memcpy(iv, next_iv, BlockSize);
}
};
/* TODO: Optimized AES cbc impl specializations. */
}

8
libraries/libvapours/include/vapours/crypto/impl/crypto_hmac_impl.hpp
View File

@ -23,7 +23,7 @@
namespace ams::crypto::impl {
template<typename Hash> /* requires HashFunction<Hash> */
template<HashFunction Hash>
class HmacImpl {
NON_COPYABLE(HmacImpl);
NON_MOVEABLE(HmacImpl);
@ -61,7 +61,7 @@ namespace ams::crypto::impl {
void GetMac(void *dst, size_t dst_size);
};
template<typename Hash>
template<HashFunction Hash>
inline void HmacImpl<Hash>::Initialize(const void *key, size_t key_size) {
/* Clear the key storage. */
std::memset(m_key, 0, sizeof(m_key));
@ -88,14 +88,14 @@ namespace ams::crypto::impl {
m_state = State_Initialized;
}
template<typename Hash>
template<HashFunction Hash>
inline void HmacImpl<Hash>::Update(const void *data, size_t data_size) {
AMS_ASSERT(m_state == State_Initialized);
m_hash_function.Update(data, data_size);
}
template<typename Hash>
template<HashFunction Hash>
inline void HmacImpl<Hash>::GetMac(void *dst, size_t dst_size) {
AMS_ASSERT(m_state == State_Initialized || m_state == State_Done);
AMS_ASSERT(dst_size >= MacSize);

2
libraries/libvapours/include/vapours/crypto/impl/crypto_md5_impl.hpp
View File

@ -56,6 +56,6 @@ namespace ams::crypto::impl {
void ProcessLastBlock();
};
/* static_assert(HashFunction<Md5Impl>); */
static_assert(HashFunction<Md5Impl>);
}

2
libraries/libvapours/include/vapours/crypto/impl/crypto_rsa_oaep_impl.hpp
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@ -22,7 +22,7 @@
namespace ams::crypto::impl {
template<typename Hash> requires HashFunction<Hash>
template<HashFunction Hash>
class RsaOaepImpl {
NON_COPYABLE(RsaOaepImpl);
NON_MOVEABLE(RsaOaepImpl);

2
libraries/libvapours/include/vapours/crypto/impl/crypto_rsa_pss_impl.hpp
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@ -22,7 +22,7 @@
namespace ams::crypto::impl {
template<typename Hash> requires HashFunction<Hash>
template<HashFunction Hash>
class RsaPssImpl {
NON_COPYABLE(RsaPssImpl);
NON_MOVEABLE(RsaPssImpl);

2
libraries/libvapours/include/vapours/crypto/impl/crypto_sha1_impl.hpp
View File

@ -55,6 +55,6 @@ namespace ams::crypto::impl {
void ProcessLastBlock();
};
/* static_assert(HashFunction<Sha1Impl>); */
static_assert(HashFunction<Sha1Impl>);
}

56
libraries/libvapours/source/crypto/crypto_aes_cbc_encryptor_decryptor.cpp Normal file
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@ -0,0 +1,56 @@
/*
* Copyright (c) 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>
namespace ams::crypto {
size_t EncryptAes128Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
Aes128CbcEncryptor aes;
aes.Initialize(key, key_size, iv, iv_size);
return aes.Update(dst, dst_size, src, src_size);
}
size_t EncryptAes192Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
Aes192CbcEncryptor aes;
aes.Initialize(key, key_size, iv, iv_size);
return aes.Update(dst, dst_size, src, src_size);
}
size_t EncryptAes256Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
Aes256CbcEncryptor aes;
aes.Initialize(key, key_size, iv, iv_size);
return aes.Update(dst, dst_size, src, src_size);
}
size_t DecryptAes128Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
Aes128CbcDecryptor aes;
aes.Initialize(key, key_size, iv, iv_size);
return aes.Update(dst, dst_size, src, src_size);
}
size_t DecryptAes192Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
Aes192CbcDecryptor aes;
aes.Initialize(key, key_size, iv, iv_size);
return aes.Update(dst, dst_size, src, src_size);
}
size_t DecryptAes256Cbc(void *dst, size_t dst_size, const void *key, size_t key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
Aes256CbcDecryptor aes;
aes.Initialize(key, key_size, iv, iv_size);
return aes.Update(dst, dst_size, src, src_size);
}
}

33
libraries/libvapours/source/crypto/crypto_memory_compare.arch.generic.cpp Normal file
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@ -0,0 +1,33 @@
/*
* Copyright (c) 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>
namespace ams::crypto {
bool IsSameBytes(const void *lhs, const void *rhs, size_t size) {
/* TODO: Should the generic impl be constant time? */
volatile u8 diff = 0;
const volatile u8 *lhs8 = static_cast<const volatile u8 *>(lhs);
const volatile u8 *rhs8 = static_cast<const volatile u8 *>(rhs);
for (size_t i = 0; i < size; ++i) {
diff = diff | (lhs8[i] ^ rhs8[i]);
}
return diff == 0;
}
}

57
libraries/libvapours/source/crypto/impl/crypto_xts_mode_impl.arch.generic.cpp Normal file
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@ -0,0 +1,57 @@
/*
* Copyright (c) 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>
#include "crypto_update_impl.hpp"
namespace ams::crypto::impl {
size_t XtsModeImpl::UpdateGeneric(void *dst, size_t dst_size, const void *src, size_t src_size) {
AMS_ASSERT(m_state == State_Initialized || m_state == State_Processing);
return UpdateImpl<void>(this, dst, dst_size, src, src_size);
}
size_t XtsModeImpl::ProcessBlocksGeneric(u8 *dst, const u8 *src, size_t num_blocks) {
size_t processed = BlockSize * (num_blocks - 1);
if (m_state == State_Processing) {
this->ProcessBlock(dst, m_last_block);
dst += BlockSize;
processed += BlockSize;
}
while ((--num_blocks) > 0) {
this->ProcessBlock(dst, src);
dst += BlockSize;
src += BlockSize;
}
std::memcpy(m_last_block, src, BlockSize);
m_state = State_Processing;
return processed;
}
template<> size_t XtsModeImpl::Update<AesEncryptor128>(void *dst, size_t dst_size, const void *src, size_t src_size) { return this->UpdateGeneric(dst, dst_size, src, src_size); }
template<> size_t XtsModeImpl::Update<AesEncryptor192>(void *dst, size_t dst_size, const void *src, size_t src_size) { return this->UpdateGeneric(dst, dst_size, src, src_size); }
template<> size_t XtsModeImpl::Update<AesEncryptor256>(void *dst, size_t dst_size, const void *src, size_t src_size) { return this->UpdateGeneric(dst, dst_size, src, src_size); }
template<> size_t XtsModeImpl::Update<AesDecryptor128>(void *dst, size_t dst_size, const void *src, size_t src_size) { return this->UpdateGeneric(dst, dst_size, src, src_size); }
template<> size_t XtsModeImpl::Update<AesDecryptor192>(void *dst, size_t dst_size, const void *src, size_t src_size) { return this->UpdateGeneric(dst, dst_size, src, src_size); }
template<> size_t XtsModeImpl::Update<AesDecryptor256>(void *dst, size_t dst_size, const void *src, size_t src_size) { return this->UpdateGeneric(dst, dst_size, src, src_size); }
}

15
tests/TestFs/source/test.cpp
View File

@ -1,3 +1,18 @@
/*
* Copyright (c) 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 <stratosphere.hpp>
namespace ams {

15
tests/TestOsEvents/source/test.cpp
View File

@ -1,3 +1,18 @@
/*
* Copyright (c) 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 <stratosphere.hpp>
namespace ams {