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authorFrederic L <frederic.laing.development@gmail.com>2018-10-30 05:03:25 +0100
committerbunnei <bunneidev@gmail.com>2018-10-30 05:03:25 +0100
commit7a5eda59146306dedaf3e6f07f97a8c6898543dd (patch)
tree78e07b43fb0113f95e1c8e9426d3b394b9524d4e /src/core/crypto/key_manager.cpp
parentMerge pull request #1621 from lioncash/ipc (diff)
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Diffstat (limited to 'src/core/crypto/key_manager.cpp')
-rw-r--r--src/core/crypto/key_manager.cpp44
1 files changed, 22 insertions, 22 deletions
diff --git a/src/core/crypto/key_manager.cpp b/src/core/crypto/key_manager.cpp
index 89ae79eb3..904afa039 100644
--- a/src/core/crypto/key_manager.cpp
+++ b/src/core/crypto/key_manager.cpp
@@ -141,28 +141,28 @@ Key128 DeriveKeyblobMACKey(const Key128& keyblob_key, const Key128& mac_source)
return mac_key;
}
-boost::optional<Key128> DeriveSDSeed() {
+std::optional<Key128> DeriveSDSeed() {
const FileUtil::IOFile save_43(FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
"/system/save/8000000000000043",
"rb+");
if (!save_43.IsOpen())
- return boost::none;
+ return {};
const FileUtil::IOFile sd_private(
FileUtil::GetUserPath(FileUtil::UserPath::SDMCDir) + "/Nintendo/Contents/private", "rb+");
if (!sd_private.IsOpen())
- return boost::none;
+ return {};
std::array<u8, 0x10> private_seed{};
if (sd_private.ReadBytes(private_seed.data(), private_seed.size()) != private_seed.size()) {
- return boost::none;
+ return {};
}
std::array<u8, 0x10> buffer{};
std::size_t offset = 0;
for (; offset + 0x10 < save_43.GetSize(); ++offset) {
if (!save_43.Seek(offset, SEEK_SET)) {
- return boost::none;
+ return {};
}
save_43.ReadBytes(buffer.data(), buffer.size());
@@ -172,12 +172,12 @@ boost::optional<Key128> DeriveSDSeed() {
}
if (!save_43.Seek(offset + 0x10, SEEK_SET)) {
- return boost::none;
+ return {};
}
Key128 seed{};
if (save_43.ReadBytes(seed.data(), seed.size()) != seed.size()) {
- return boost::none;
+ return {};
}
return seed;
}
@@ -291,26 +291,26 @@ static std::array<u8, target_size> MGF1(const std::array<u8, in_size>& seed) {
}
template <size_t size>
-static boost::optional<u64> FindTicketOffset(const std::array<u8, size>& data) {
+static std::optional<u64> FindTicketOffset(const std::array<u8, size>& data) {
u64 offset = 0;
for (size_t i = 0x20; i < data.size() - 0x10; ++i) {
if (data[i] == 0x1) {
offset = i + 1;
break;
} else if (data[i] != 0x0) {
- return boost::none;
+ return {};
}
}
return offset;
}
-boost::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
- const RSAKeyPair<2048>& key) {
+std::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
+ const RSAKeyPair<2048>& key) {
u32 cert_authority;
std::memcpy(&cert_authority, ticket.data() + 0x140, sizeof(cert_authority));
if (cert_authority == 0)
- return boost::none;
+ return {};
if (cert_authority != Common::MakeMagic('R', 'o', 'o', 't')) {
LOG_INFO(Crypto,
"Attempting to parse ticket with non-standard certificate authority {:08X}.",
@@ -321,7 +321,7 @@ boost::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
std::memcpy(rights_id.data(), ticket.data() + 0x2A0, sizeof(Key128));
if (rights_id == Key128{})
- return boost::none;
+ return {};
Key128 key_temp{};
@@ -356,17 +356,17 @@ boost::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
std::memcpy(m_2.data(), rsa_step.data() + 0x21, m_2.size());
if (m_0 != 0)
- return boost::none;
+ return {};
m_1 = m_1 ^ MGF1<0x20>(m_2);
m_2 = m_2 ^ MGF1<0xDF>(m_1);
const auto offset = FindTicketOffset(m_2);
- if (offset == boost::none)
- return boost::none;
- ASSERT(offset.get() > 0);
+ if (!offset)
+ return {};
+ ASSERT(*offset > 0);
- std::memcpy(key_temp.data(), m_2.data() + offset.get(), key_temp.size());
+ std::memcpy(key_temp.data(), m_2.data() + *offset, key_temp.size());
return std::make_pair(rights_id, key_temp);
}
@@ -661,8 +661,8 @@ void KeyManager::DeriveSDSeedLazy() {
return;
const auto res = DeriveSDSeed();
- if (res != boost::none)
- SetKey(S128KeyType::SDSeed, res.get());
+ if (res)
+ SetKey(S128KeyType::SDSeed, *res);
}
static Key128 CalculateCMAC(const u8* source, size_t size, const Key128& key) {
@@ -889,9 +889,9 @@ void KeyManager::DeriveETicket(PartitionDataManager& data) {
for (const auto& raw : res) {
const auto pair = ParseTicket(raw, rsa_key);
- if (pair == boost::none)
+ if (!pair)
continue;
- const auto& [rid, key] = pair.value();
+ const auto& [rid, key] = *pair;
u128 rights_id;
std::memcpy(rights_id.data(), rid.data(), rid.size());
SetKey(S128KeyType::Titlekey, key, rights_id[1], rights_id[0]);