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key_manager: Add support for more keys

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TSEC, SBK, BIS, and other Sources for proper derivation
This commit is contained in:
Zach Hilman 2018-09-23 20:56:02 -04:00
parent c79d2ca6cf
commit d6a0d5d432
2 changed files with 99 additions and 3 deletions
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68
src/core/crypto/key_manager.cpp
View File

@ -152,6 +152,12 @@ KeyManager::KeyManager() {
AttemptLoadKeyFile(yuzu_keys_dir, yuzu_keys_dir, "console.keys_autogenerated", false);
}
static bool ValidCryptoRevisionString(const std::string& base, size_t begin, size_t length) {
if (base.size() < begin + length)
return false;
return std::all_of(base.begin() + begin, base.begin() + begin + length, ::isdigit);
}
void KeyManager::LoadFromFile(const std::string& filename, bool is_title_keys) {
std::ifstream file(filename);
if (!file.is_open())
@ -190,6 +196,59 @@ void KeyManager::LoadFromFile(const std::string& filename, bool is_title_keys) {
const auto index = s256_file_id.at(out[0]);
Key256 key = Common::HexStringToArray<32>(out[1]);
s256_keys[{index.type, index.field1, index.field2}] = key;
} else if (out[0].compare(0, 8, "keyblob_") == 0 &&
out[0].compare(0, 9, "keyblob_k") != 0) {
if (!ValidCryptoRevisionString(out[0], 8, 2))
continue;
const auto index = std::stoul(out[0].substr(8, 2), nullptr, 16);
keyblobs[index] = Common::HexStringToArray<0x90>(out[1]);
} else if (out[0].compare(0, 18, "encrypted_keyblob_") == 0) {
if (!ValidCryptoRevisionString(out[0], 18, 2))
continue;
const auto index = std::stoul(out[0].substr(18, 2), nullptr, 16);
encrypted_keyblobs[index] = Common::HexStringToArray<0xB0>(out[1]);
} else {
for (const auto& kv : std::map<std::pair<S128KeyType, u64>, std::string>{
{{S128KeyType::Master, 0}, "master_key_"},
{{S128KeyType::Package1, 0}, "package1_key_"},
{{S128KeyType::Package2, 0}, "package2_key_"},
{{S128KeyType::Titlekek, 0}, "titlekek_"},
{{S128KeyType::Source, static_cast<u64>(SourceKeyType::Keyblob)},
"keyblob_key_source_"},
{{S128KeyType::Keyblob, 0}, "keyblob_key_"},
{{S128KeyType::KeyblobMAC, 0}, "keyblob_mac_key_"},
}) {
if (!ValidCryptoRevisionString(out[0], kv.second.size(), 2))
continue;
if (out[0].compare(0, kv.second.size(), kv.second) == 0) {
const auto index =
std::stoul(out[0].substr(kv.second.size(), 2), nullptr, 16);
const auto sub = kv.first.second;
if (sub == 0) {
s128_keys[{kv.first.first, index, 0}] =
Common::HexStringToArray<16>(out[1]);
} else {
s128_keys[{kv.first.first, kv.first.second, index}] =
Common::HexStringToArray<16>(out[1]);
}
break;
}
}
const static std::array<const char*, 3> kak_names = {
"key_area_key_application_", "key_area_key_ocean_", "key_area_key_system_"};
for (size_t j = 0; j < 3; ++j) {
const auto& match = kak_names[j];
if (out[0].compare(0, std::strlen(match), match) == 0) {
const auto index =
std::stoul(out[0].substr(std::strlen(match), 2), nullptr, 16);
s128_keys[{S128KeyType::KeyArea, index, j}] =
Common::HexStringToArray<16>(out[1]);
}
}
}
}
}
@ -255,8 +314,15 @@ void KeyManager::SetKey(S128KeyType id, Key128 key, u64 field1, u64 field2) {
Key128 rights_id;
std::memcpy(rights_id.data(), &field2, sizeof(u64));
std::memcpy(rights_id.data() + sizeof(u64), &field1, sizeof(u64));
WriteKeyToFile(true, Common::HexArrayToString(rights_id), key);
WriteKeyToFile(KeyCategory::Title, Common::HexArrayToString(rights_id), key);
}
auto category = KeyCategory::Standard;
if (id == S128KeyType::Keyblob || id == S128KeyType::KeyblobMAC || id == S128KeyType::TSEC ||
id == S128KeyType::SecureBoot || id == S128KeyType::SDSeed || id == S128KeyType::BIS) {
category = KeyCategory::Console;
}
const auto iter2 = std::find_if(
s128_file_id.begin(), s128_file_id.end(),
[&id, &field1, &field2](const std::pair<std::string, KeyIndex<S128KeyType>> elem) {

34
src/core/crypto/key_manager.h
View File

@ -33,8 +33,10 @@ enum class KeyCategory : u8 {
};
enum class S256KeyType : u64 {
Header, //
SDKeySource, // f1=SDKeyType
SDKey, // f1=SDKeyType
Header, //
SDKeySource, // f1=SDKeyType
HeaderSource, //
};
enum class S128KeyType : u64 {
@ -47,6 +49,14 @@ enum class S128KeyType : u64 {
SDSeed, //
Titlekey, // f1=rights id LSB f2=rights id MSB
Source, // f1=source type, f2= sub id
Keyblob, // f1=crypto revision
KeyblobMAC, // f1=crypto revision
TSEC, //
SecureBoot, //
BIS, // f1=partition (0-3), f2=type {crypt, tweak}
HeaderKek, //
SDKek, //
RSAKek, //
};
enum class KeyAreaKeyType : u8 {
@ -59,6 +69,16 @@ enum class SourceKeyType : u8 {
SDKek, //
AESKekGeneration, //
AESKeyGeneration, //
RSAOaepKekGeneration, //
Master, //
Keyblob, // f2=crypto revision
KeyAreaKey, // f2=KeyAreaKeyType
Titlekek, //
Package2, //
HeaderKek, //
KeyblobMAC, //
ETicketKek, //
ETicketKekek, //
};
enum class SDKeyType : u8 {
@ -66,6 +86,16 @@ enum class SDKeyType : u8 {
NCA,
};
enum class BISKeyType : u8 {
Crypto,
Tweak,
};
enum class RSAKekType : u8 {
Mask0,
Seed3,
};
template <typename KeyType>
struct KeyIndex {
KeyType type;