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early-access version 3513

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This commit is contained in:
pineappleEA 2023-04-19 19:41:33 +02:00
parent 59516ad377
commit 0c8bed734b
4 changed files with 66 additions and 51 deletions
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2
README.md
View File

@ -1,7 +1,7 @@
yuzu emulator early access
=============
This is the source code for early-access 3512.
This is the source code for early-access 3513.
## Legal Notice

111
src/core/crypto/key_manager.cpp
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@ -156,6 +156,10 @@ u64 GetSignatureTypePaddingSize(SignatureType type) {
UNREACHABLE();
}
bool Ticket::IsValid() const {
return !std::holds_alternative<std::monostate>(data);
}
SignatureType Ticket::GetSignatureType() const {
if (const auto* ticket = std::get_if<RSA4096Ticket>(&data)) {
return ticket->sig_type;
@ -236,6 +240,7 @@ bool Ticket::Read(Ticket& ticket_out, const FileSys::VirtualFile& file) {
return true;
}
default:
ticket_out.data.emplace<std::monostate>();
return false;
}
}
@ -535,67 +540,75 @@ static std::optional<u64> FindTicketOffset(const std::array<u8, size>& data) {
std::optional<std::pair<Key128, Key128>> ParseTicket(const Ticket& ticket,
const RSAKeyPair<2048>& key) {
const auto issuer = ticket.GetData().issuer;
if (IsAllZeroArray(issuer)) {
return std::nullopt;
}
if (issuer[0] != 'R' || issuer[1] != 'o' || issuer[2] != 'o' || issuer[3] != 't') {
LOG_INFO(Crypto, "Attempting to parse ticket with non-standard certificate authority.");
}
Key128 rights_id = ticket.GetData().rights_id;
if (rights_id == Key128{}) {
if (!ticket.IsValid()) {
return std::nullopt;
}
if (!std::any_of(ticket.GetData().title_key_common_pad.begin(),
ticket.GetData().title_key_common_pad.end(), [](u8 b) { return b != 0; })) {
return std::make_pair(rights_id, ticket.GetData().title_key_common);
}
// Dirty hack, figure out why ticket.data variant is invalid
try {
const auto issuer = ticket.GetData().issuer;
if (IsAllZeroArray(issuer)) {
return std::nullopt;
}
if (issuer[0] != 'R' || issuer[1] != 'o' || issuer[2] != 'o' || issuer[3] != 't') {
LOG_INFO(Crypto, "Attempting to parse ticket with non-standard certificate authority.");
}
mbedtls_mpi D; // RSA Private Exponent
mbedtls_mpi N; // RSA Modulus
mbedtls_mpi S; // Input
mbedtls_mpi M; // Output
Key128 rights_id = ticket.GetData().rights_id;
mbedtls_mpi_init(&D);
mbedtls_mpi_init(&N);
mbedtls_mpi_init(&S);
mbedtls_mpi_init(&M);
if (rights_id == Key128{}) {
return std::nullopt;
}
mbedtls_mpi_read_binary(&D, key.decryption_key.data(), key.decryption_key.size());
mbedtls_mpi_read_binary(&N, key.modulus.data(), key.modulus.size());
mbedtls_mpi_read_binary(&S, ticket.GetData().title_key_block.data(), 0x100);
if (ticket.GetData().type == TitleKeyType::Common) {
return std::make_pair(rights_id, ticket.GetData().title_key_common);
}
mbedtls_mpi_exp_mod(&M, &S, &D, &N, nullptr);
mbedtls_mpi D; // RSA Private Exponent
mbedtls_mpi N; // RSA Modulus
mbedtls_mpi S; // Input
mbedtls_mpi M; // Output
std::array<u8, 0x100> rsa_step;
mbedtls_mpi_write_binary(&M, rsa_step.data(), rsa_step.size());
mbedtls_mpi_init(&D);
mbedtls_mpi_init(&N);
mbedtls_mpi_init(&S);
mbedtls_mpi_init(&M);
u8 m_0 = rsa_step[0];
std::array<u8, 0x20> m_1;
std::memcpy(m_1.data(), rsa_step.data() + 0x01, m_1.size());
std::array<u8, 0xDF> m_2;
std::memcpy(m_2.data(), rsa_step.data() + 0x21, m_2.size());
mbedtls_mpi_read_binary(&D, key.decryption_key.data(), key.decryption_key.size());
mbedtls_mpi_read_binary(&N, key.modulus.data(), key.modulus.size());
mbedtls_mpi_read_binary(&S, ticket.GetData().title_key_block.data(), 0x100);
if (m_0 != 0) {
mbedtls_mpi_exp_mod(&M, &S, &D, &N, nullptr);
std::array<u8, 0x100> rsa_step;
mbedtls_mpi_write_binary(&M, rsa_step.data(), rsa_step.size());
u8 m_0 = rsa_step[0];
std::array<u8, 0x20> m_1;
std::memcpy(m_1.data(), rsa_step.data() + 0x01, m_1.size());
std::array<u8, 0xDF> m_2;
std::memcpy(m_2.data(), rsa_step.data() + 0x21, m_2.size());
if (m_0 != 0) {
return std::nullopt;
}
m_1 = m_1 ^ MGF1<0x20>(m_2);
m_2 = m_2 ^ MGF1<0xDF>(m_1);
const auto offset = FindTicketOffset(m_2);
if (!offset) {
return std::nullopt;
}
ASSERT(*offset > 0);
Key128 key_temp{};
std::memcpy(key_temp.data(), m_2.data() + *offset, key_temp.size());
return std::make_pair(rights_id, key_temp);
} catch (const std::bad_variant_access&) {
return std::nullopt;
}
m_1 = m_1 ^ MGF1<0x20>(m_2);
m_2 = m_2 ^ MGF1<0xDF>(m_1);
const auto offset = FindTicketOffset(m_2);
if (!offset) {
return std::nullopt;
}
ASSERT(*offset > 0);
Key128 key_temp{};
std::memcpy(key_temp.data(), m_2.data() + *offset, key_temp.size());
return std::make_pair(rights_id, key_temp);
}
KeyManager::KeyManager() {

3
src/core/crypto/key_manager.h
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@ -96,8 +96,9 @@ struct ECDSATicket {
};
struct Ticket {
std::variant<RSA4096Ticket, RSA2048Ticket, ECDSATicket> data;
std::variant<std::monostate, RSA4096Ticket, RSA2048Ticket, ECDSATicket> data;
bool IsValid() const;
SignatureType GetSignatureType() const;
TicketData& GetData();
const TicketData& GetData() const;

1
src/core/hle/service/audio/audout_u.cpp
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@ -284,6 +284,7 @@ void AudOutU::OpenAudioOut(HLERequestContext& ctx) {
result = audio_out->GetImpl()->GetSystem().Initialize(device_name, in_params, handle,
applet_resource_user_id);
if (result.IsError()) {
LOG_ERROR(Service_Audio, "Failed to initialize the AudioOut System!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
return;