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key_manager: Make data arrays constexpr 

We can convert these maps into constexpr arrays to eliminate some
runtime static constructors.
This commit is contained in:
Lioncash 2020-08-22 22:04:15 -04:00
parent 3ea3de4ecd
commit b62a8ca43e
2 changed files with 82 additions and 75 deletions
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153
src/core/crypto/key_manager.cpp
View File

@ -36,6 +36,7 @@
#include "core/settings.h" #include "core/settings.h"
namespace Core::Crypto { namespace Core::Crypto {
namespace {
constexpr u64 CURRENT_CRYPTO_REVISION = 0x5; constexpr u64 CURRENT_CRYPTO_REVISION = 0x5;
constexpr u64 FULL_TICKET_SIZE = 0x400; constexpr u64 FULL_TICKET_SIZE = 0x400;
@ -49,7 +50,72 @@ constexpr std::array eticket_source_hashes{
}; };
// clang-format on // clang-format on
const std::map<std::pair<S128KeyType, u64>, std::string> KEYS_VARIABLE_LENGTH{ constexpr std::array<std::pair<std::string_view, KeyIndex<S128KeyType>>, 30> s128_file_id{{
{"eticket_rsa_kek", {S128KeyType::ETicketRSAKek, 0, 0}},
{"eticket_rsa_kek_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::ETicketKek), 0}},
{"eticket_rsa_kekek_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::ETicketKekek), 0}},
{"rsa_kek_mask_0", {S128KeyType::RSAKek, static_cast<u64>(RSAKekType::Mask0), 0}},
{"rsa_kek_seed_3", {S128KeyType::RSAKek, static_cast<u64>(RSAKekType::Seed3), 0}},
{"rsa_oaep_kek_generation_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::RSAOaepKekGeneration), 0}},
{"sd_card_kek_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::SDKek), 0}},
{"aes_kek_generation_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::AESKekGeneration), 0}},
{"aes_key_generation_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::AESKeyGeneration), 0}},
{"package2_key_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::Package2), 0}},
{"master_key_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::Master), 0}},
{"header_kek_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::HeaderKek), 0}},
{"key_area_key_application_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyAreaKey),
static_cast<u64>(KeyAreaKeyType::Application)}},
{"key_area_key_ocean_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyAreaKey),
static_cast<u64>(KeyAreaKeyType::Ocean)}},
{"key_area_key_system_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyAreaKey),
static_cast<u64>(KeyAreaKeyType::System)}},
{"titlekek_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::Titlekek), 0}},
{"keyblob_mac_key_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyblobMAC), 0}},
{"tsec_key", {S128KeyType::TSEC, 0, 0}},
{"secure_boot_key", {S128KeyType::SecureBoot, 0, 0}},
{"sd_seed", {S128KeyType::SDSeed, 0, 0}},
{"bis_key_0_crypt", {S128KeyType::BIS, 0, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_0_tweak", {S128KeyType::BIS, 0, static_cast<u64>(BISKeyType::Tweak)}},
{"bis_key_1_crypt", {S128KeyType::BIS, 1, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_1_tweak", {S128KeyType::BIS, 1, static_cast<u64>(BISKeyType::Tweak)}},
{"bis_key_2_crypt", {S128KeyType::BIS, 2, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_2_tweak", {S128KeyType::BIS, 2, static_cast<u64>(BISKeyType::Tweak)}},
{"bis_key_3_crypt", {S128KeyType::BIS, 3, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_3_tweak", {S128KeyType::BIS, 3, static_cast<u64>(BISKeyType::Tweak)}},
{"header_kek", {S128KeyType::HeaderKek, 0, 0}},
{"sd_card_kek", {S128KeyType::SDKek, 0, 0}},
}};
auto Find128ByName(std::string_view name) {
return std::find_if(s128_file_id.begin(), s128_file_id.end(),
[&name](const auto& pair) { return pair.first == name; });
}
constexpr std::array<std::pair<std::string_view, KeyIndex<S256KeyType>>, 6> s256_file_id{{
{"header_key", {S256KeyType::Header, 0, 0}},
{"sd_card_save_key_source", {S256KeyType::SDKeySource, static_cast<u64>(SDKeyType::Save), 0}},
{"sd_card_nca_key_source", {S256KeyType::SDKeySource, static_cast<u64>(SDKeyType::NCA), 0}},
{"header_key_source", {S256KeyType::HeaderSource, 0, 0}},
{"sd_card_save_key", {S256KeyType::SDKey, static_cast<u64>(SDKeyType::Save), 0}},
{"sd_card_nca_key", {S256KeyType::SDKey, static_cast<u64>(SDKeyType::NCA), 0}},
}};
auto Find256ByName(std::string_view name) {
return std::find_if(s256_file_id.begin(), s256_file_id.end(),
[&name](const auto& pair) { return pair.first == name; });
}
using KeyArray = std::array<std::pair<std::pair<S128KeyType, u64>, std::string_view>, 7>;
constexpr KeyArray KEYS_VARIABLE_LENGTH{{
{{S128KeyType::Master, 0}, "master_key_"}, {{S128KeyType::Master, 0}, "master_key_"},
{{S128KeyType::Package1, 0}, "package1_key_"}, {{S128KeyType::Package1, 0}, "package1_key_"},
{{S128KeyType::Package2, 0}, "package2_key_"}, {{S128KeyType::Package2, 0}, "package2_key_"},
@ -57,14 +123,13 @@ const std::map<std::pair<S128KeyType, u64>, std::string> KEYS_VARIABLE_LENGTH{
{{S128KeyType::Source, static_cast<u64>(SourceKeyType::Keyblob)}, "keyblob_key_source_"}, {{S128KeyType::Source, static_cast<u64>(SourceKeyType::Keyblob)}, "keyblob_key_source_"},
{{S128KeyType::Keyblob, 0}, "keyblob_key_"}, {{S128KeyType::Keyblob, 0}, "keyblob_key_"},
{{S128KeyType::KeyblobMAC, 0}, "keyblob_mac_key_"}, {{S128KeyType::KeyblobMAC, 0}, "keyblob_mac_key_"},
}; }};
namespace {
template <std::size_t Size> template <std::size_t Size>
bool IsAllZeroArray(const std::array<u8, Size>& array) { bool IsAllZeroArray(const std::array<u8, Size>& array) {
return std::all_of(array.begin(), array.end(), [](const auto& elem) { return elem == 0; }); return std::all_of(array.begin(), array.end(), [](const auto& elem) { return elem == 0; });
} }
} // namespace } // Anonymous namespace
u64 GetSignatureTypeDataSize(SignatureType type) { u64 GetSignatureTypeDataSize(SignatureType type) {
switch (type) { switch (type) {
@ -564,13 +629,13 @@ void KeyManager::LoadFromFile(const std::string& filename, bool is_title_keys) {
s128_keys[{S128KeyType::Titlekey, rights_id[1], rights_id[0]}] = key; s128_keys[{S128KeyType::Titlekey, rights_id[1], rights_id[0]}] = key;
} else { } else {
out[0] = Common::ToLower(out[0]); out[0] = Common::ToLower(out[0]);
if (s128_file_id.find(out[0]) != s128_file_id.end()) { if (const auto iter128 = Find128ByName(out[0]); iter128 != s128_file_id.end()) {
const auto index = s128_file_id.at(out[0]); const auto& index = iter128->second;
Key128 key = Common::HexStringToArray<16>(out[1]); const Key128 key = Common::HexStringToArray<16>(out[1]);
s128_keys[{index.type, index.field1, index.field2}] = key; s128_keys[{index.type, index.field1, index.field2}] = key;
} else if (s256_file_id.find(out[0]) != s256_file_id.end()) { } else if (const auto iter256 = Find256ByName(out[0]); iter256 != s256_file_id.end()) {
const auto index = s256_file_id.at(out[0]); const auto& index = iter256->second;
Key256 key = Common::HexStringToArray<32>(out[1]); const Key256 key = Common::HexStringToArray<32>(out[1]);
s256_keys[{index.type, index.field1, index.field2}] = key; s256_keys[{index.type, index.field1, index.field2}] = key;
} else if (out[0].compare(0, 8, "keyblob_") == 0 && } else if (out[0].compare(0, 8, "keyblob_") == 0 &&
out[0].compare(0, 9, "keyblob_k") != 0) { out[0].compare(0, 9, "keyblob_k") != 0) {
@ -742,8 +807,7 @@ void KeyManager::SetKey(S128KeyType id, Key128 key, u64 field1, u64 field2) {
} }
const auto iter2 = std::find_if( const auto iter2 = std::find_if(
s128_file_id.begin(), s128_file_id.end(), s128_file_id.begin(), s128_file_id.end(), [&id, &field1, &field2](const auto& elem) {
[&id, &field1, &field2](const std::pair<std::string, KeyIndex<S128KeyType>> elem) {
return std::tie(elem.second.type, elem.second.field1, elem.second.field2) == return std::tie(elem.second.type, elem.second.field1, elem.second.field2) ==
std::tie(id, field1, field2); std::tie(id, field1, field2);
}); });
@ -753,9 +817,11 @@ void KeyManager::SetKey(S128KeyType id, Key128 key, u64 field1, u64 field2) {
// Variable cases // Variable cases
if (id == S128KeyType::KeyArea) { if (id == S128KeyType::KeyArea) {
static constexpr std::array<const char*, 3> kak_names = {"key_area_key_application_{:02X}", static constexpr std::array<const char*, 3> kak_names = {
"key_area_key_ocean_{:02X}", "key_area_key_application_{:02X}",
"key_area_key_system_{:02X}"}; "key_area_key_ocean_{:02X}",
"key_area_key_system_{:02X}",
};
WriteKeyToFile(category, fmt::format(kak_names.at(field2), field1), key); WriteKeyToFile(category, fmt::format(kak_names.at(field2), field1), key);
} else if (id == S128KeyType::Master) { } else if (id == S128KeyType::Master) {
WriteKeyToFile(category, fmt::format("master_key_{:02X}", field1), key); WriteKeyToFile(category, fmt::format("master_key_{:02X}", field1), key);
@ -781,8 +847,7 @@ void KeyManager::SetKey(S256KeyType id, Key256 key, u64 field1, u64 field2) {
return; return;
} }
const auto iter = std::find_if( const auto iter = std::find_if(
s256_file_id.begin(), s256_file_id.end(), s256_file_id.begin(), s256_file_id.end(), [&id, &field1, &field2](const auto& elem) {
[&id, &field1, &field2](const std::pair<std::string, KeyIndex<S256KeyType>> elem) {
return std::tie(elem.second.type, elem.second.field1, elem.second.field2) == return std::tie(elem.second.type, elem.second.field1, elem.second.field2) ==
std::tie(id, field1, field2); std::tie(id, field1, field2);
}); });
@ -1245,58 +1310,4 @@ bool KeyManager::AddTicketPersonalized(Ticket raw) {
SetKey(S128KeyType::Titlekey, key, rights_id[1], rights_id[0]); SetKey(S128KeyType::Titlekey, key, rights_id[1], rights_id[0]);
return true; return true;
} }
const boost::container::flat_map<std::string, KeyIndex<S128KeyType>> KeyManager::s128_file_id = {
{"eticket_rsa_kek", {S128KeyType::ETicketRSAKek, 0, 0}},
{"eticket_rsa_kek_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::ETicketKek), 0}},
{"eticket_rsa_kekek_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::ETicketKekek), 0}},
{"rsa_kek_mask_0", {S128KeyType::RSAKek, static_cast<u64>(RSAKekType::Mask0), 0}},
{"rsa_kek_seed_3", {S128KeyType::RSAKek, static_cast<u64>(RSAKekType::Seed3), 0}},
{"rsa_oaep_kek_generation_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::RSAOaepKekGeneration), 0}},
{"sd_card_kek_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::SDKek), 0}},
{"aes_kek_generation_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::AESKekGeneration), 0}},
{"aes_key_generation_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::AESKeyGeneration), 0}},
{"package2_key_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::Package2), 0}},
{"master_key_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::Master), 0}},
{"header_kek_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::HeaderKek), 0}},
{"key_area_key_application_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyAreaKey),
static_cast<u64>(KeyAreaKeyType::Application)}},
{"key_area_key_ocean_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyAreaKey),
static_cast<u64>(KeyAreaKeyType::Ocean)}},
{"key_area_key_system_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyAreaKey),
static_cast<u64>(KeyAreaKeyType::System)}},
{"titlekek_source", {S128KeyType::Source, static_cast<u64>(SourceKeyType::Titlekek), 0}},
{"keyblob_mac_key_source",
{S128KeyType::Source, static_cast<u64>(SourceKeyType::KeyblobMAC), 0}},
{"tsec_key", {S128KeyType::TSEC, 0, 0}},
{"secure_boot_key", {S128KeyType::SecureBoot, 0, 0}},
{"sd_seed", {S128KeyType::SDSeed, 0, 0}},
{"bis_key_0_crypt", {S128KeyType::BIS, 0, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_0_tweak", {S128KeyType::BIS, 0, static_cast<u64>(BISKeyType::Tweak)}},
{"bis_key_1_crypt", {S128KeyType::BIS, 1, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_1_tweak", {S128KeyType::BIS, 1, static_cast<u64>(BISKeyType::Tweak)}},
{"bis_key_2_crypt", {S128KeyType::BIS, 2, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_2_tweak", {S128KeyType::BIS, 2, static_cast<u64>(BISKeyType::Tweak)}},
{"bis_key_3_crypt", {S128KeyType::BIS, 3, static_cast<u64>(BISKeyType::Crypto)}},
{"bis_key_3_tweak", {S128KeyType::BIS, 3, static_cast<u64>(BISKeyType::Tweak)}},
{"header_kek", {S128KeyType::HeaderKek, 0, 0}},
{"sd_card_kek", {S128KeyType::SDKek, 0, 0}},
};
const boost::container::flat_map<std::string, KeyIndex<S256KeyType>> KeyManager::s256_file_id = {
{"header_key", {S256KeyType::Header, 0, 0}},
{"sd_card_save_key_source", {S256KeyType::SDKeySource, static_cast<u64>(SDKeyType::Save), 0}},
{"sd_card_nca_key_source", {S256KeyType::SDKeySource, static_cast<u64>(SDKeyType::NCA), 0}},
{"header_key_source", {S256KeyType::HeaderSource, 0, 0}},
{"sd_card_save_key", {S256KeyType::SDKey, static_cast<u64>(SDKeyType::Save), 0}},
{"sd_card_nca_key", {S256KeyType::SDKey, static_cast<u64>(SDKeyType::NCA), 0}},
};
} // namespace Core::Crypto } // namespace Core::Crypto

4
src/core/crypto/key_manager.h
View File

@ -10,7 +10,6 @@
#include <string> #include <string>
#include <variant> #include <variant>
#include <boost/container/flat_map.hpp>
#include <fmt/format.h> #include <fmt/format.h>
#include "common/common_funcs.h" #include "common/common_funcs.h"
#include "common/common_types.h" #include "common/common_types.h"
@ -293,9 +292,6 @@ private:
void SetKeyWrapped(S128KeyType id, Key128 key, u64 field1 = 0, u64 field2 = 0); void SetKeyWrapped(S128KeyType id, Key128 key, u64 field1 = 0, u64 field2 = 0);
void SetKeyWrapped(S256KeyType id, Key256 key, u64 field1 = 0, u64 field2 = 0); void SetKeyWrapped(S256KeyType id, Key256 key, u64 field1 = 0, u64 field2 = 0);
static const boost::container::flat_map<std::string, KeyIndex<S128KeyType>> s128_file_id;
static const boost::container::flat_map<std::string, KeyIndex<S256KeyType>> s256_file_id;
}; };
Key128 GenerateKeyEncryptionKey(Key128 source, Key128 master, Key128 kek_seed, Key128 key_seed); Key128 GenerateKeyEncryptionKey(Key128 source, Key128 master, Key128 kek_seed, Key128 key_seed);