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-rw-r--r--src/core/crypto/key_manager.cpp124
-rw-r--r--src/core/crypto/key_manager.h96
-rw-r--r--src/core/hle/service/es/es.cpp18
3 files changed, 194 insertions, 44 deletions
diff --git a/src/core/crypto/key_manager.cpp b/src/core/crypto/key_manager.cpp
index ef139902d..558790a49 100644
--- a/src/core/crypto/key_manager.cpp
+++ b/src/core/crypto/key_manager.cpp
@@ -37,6 +37,7 @@
namespace Core::Crypto {
constexpr u64 CURRENT_CRYPTO_REVISION = 0x5;
+constexpr u64 FULL_TICKET_SIZE = 0x400;
using namespace Common;
@@ -55,6 +56,78 @@ const std::map<std::pair<S128KeyType, u64>, std::string> KEYS_VARIABLE_LENGTH{
{{S128KeyType::KeyblobMAC, 0}, "keyblob_mac_key_"},
};
+u64 GetSignatureTypeDataSize(SignatureType type) {
+ switch (type) {
+ case SignatureType::RSA_4096_SHA1:
+ case SignatureType::RSA_4096_SHA256:
+ return 0x200;
+ case SignatureType::RSA_2048_SHA1:
+ case SignatureType::RSA_2048_SHA256:
+ return 0x100;
+ case SignatureType::ECDSA_SHA1:
+ case SignatureType::ECDSA_SHA256:
+ return 0x3C;
+ }
+ UNREACHABLE();
+}
+
+u64 GetSignatureTypePaddingSize(SignatureType type) {
+ switch (type) {
+ case SignatureType::RSA_4096_SHA1:
+ case SignatureType::RSA_4096_SHA256:
+ case SignatureType::RSA_2048_SHA1:
+ case SignatureType::RSA_2048_SHA256:
+ return 0x3C;
+ case SignatureType::ECDSA_SHA1:
+ case SignatureType::ECDSA_SHA256:
+ return 0x40;
+ }
+ UNREACHABLE();
+}
+
+TicketData& Ticket::GetData() {
+ switch (sig_type) {
+ case SignatureType::RSA_4096_SHA1:
+ case SignatureType::RSA_4096_SHA256:
+ return rsa_4096.data;
+ case SignatureType::RSA_2048_SHA1:
+ case SignatureType::RSA_2048_SHA256:
+ return rsa_2048.data;
+ case SignatureType::ECDSA_SHA1:
+ case SignatureType::ECDSA_SHA256:
+ return ecdsa.data;
+ }
+ UNREACHABLE();
+}
+
+const TicketData& Ticket::GetData() const {
+ switch (sig_type) {
+ case SignatureType::RSA_4096_SHA1:
+ case SignatureType::RSA_4096_SHA256:
+ return rsa_4096.data;
+ case SignatureType::RSA_2048_SHA1:
+ case SignatureType::RSA_2048_SHA256:
+ return rsa_2048.data;
+ case SignatureType::ECDSA_SHA1:
+ case SignatureType::ECDSA_SHA256:
+ return ecdsa.data;
+ }
+ UNREACHABLE();
+}
+
+u64 Ticket::GetSize() const {
+ return sizeof(SignatureType) + GetSignatureTypeDataSize(sig_type) +
+ GetSignatureTypePaddingSize(sig_type) + sizeof(TicketData);
+}
+
+Ticket Ticket::SynthesizeCommon(Key128 title_key, std::array<u8, 16> rights_id) {
+ Ticket out{};
+ out.sig_type = SignatureType::RSA_2048_SHA256;
+ out.GetData().rights_id = rights_id;
+ out.GetData().title_key_common = title_key;
+ return out;
+}
+
Key128 GenerateKeyEncryptionKey(Key128 source, Key128 master, Key128 kek_seed, Key128 key_seed) {
Key128 out{};
@@ -259,7 +332,7 @@ Loader::ResultStatus DeriveSDKeys(std::array<Key256, 2>& sd_keys, KeyManager& ke
return Loader::ResultStatus::Success;
}
-std::vector<TicketRaw> GetTicketblob(const FileUtil::IOFile& ticket_save) {
+std::vector<Ticket> GetTicketblob(const FileUtil::IOFile& ticket_save) {
if (!ticket_save.IsOpen())
return {};
@@ -268,14 +341,14 @@ std::vector<TicketRaw> GetTicketblob(const FileUtil::IOFile& ticket_save) {
return {};
}
- std::vector<TicketRaw> out;
+ std::vector<Ticket> out;
for (std::size_t offset = 0; offset + 0x4 < buffer.size(); ++offset) {
if (buffer[offset] == 0x4 && buffer[offset + 1] == 0x0 && buffer[offset + 2] == 0x1 &&
buffer[offset + 3] == 0x0) {
out.emplace_back();
auto& next = out.back();
- std::memcpy(&next, buffer.data() + offset, sizeof(TicketRaw));
- offset += next.size();
+ std::memcpy(&next, buffer.data() + offset, sizeof(Ticket));
+ offset += FULL_TICKET_SIZE;
}
}
@@ -327,29 +400,25 @@ static std::optional<u64> FindTicketOffset(const std::array<u8, size>& data) {
return offset;
}
-std::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
+std::optional<std::pair<Key128, Key128>> ParseTicket(const Ticket& ticket,
const RSAKeyPair<2048>& key) {
- u32 cert_authority;
- std::memcpy(&cert_authority, ticket.data() + 0x140, sizeof(cert_authority));
- if (cert_authority == 0)
+ const auto issuer = ticket.GetData().issuer;
+ if (issuer == std::array<u8, 0x40>{})
return {};
- if (cert_authority != Common::MakeMagic('R', 'o', 'o', 't')) {
+ 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 {:08X}.",
- cert_authority);
+ issuer);
}
- Key128 rights_id;
- std::memcpy(rights_id.data(), ticket.data() + 0x2A0, sizeof(Key128));
+ Key128 rights_id = ticket.GetData().rights_id;
if (rights_id == Key128{})
return {};
- Key128 key_temp{};
-
- if (!std::any_of(ticket.begin() + 0x190, ticket.begin() + 0x280, [](u8 b) { return b != 0; })) {
- std::memcpy(key_temp.data(), ticket.data() + 0x180, key_temp.size());
- return std::make_pair(rights_id, key_temp);
+ 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);
}
mbedtls_mpi D; // RSA Private Exponent
@@ -364,7 +433,7 @@ std::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
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.data() + 0x180, 0x100);
+ mbedtls_mpi_read_binary(&S, ticket.GetData().title_key_block.data(), 0x100);
mbedtls_mpi_exp_mod(&M, &S, &D, &N, nullptr);
@@ -388,6 +457,7 @@ std::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
return {};
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);
@@ -411,6 +481,16 @@ KeyManager::KeyManager() {
AttemptLoadKeyFile(yuzu_keys_dir, yuzu_keys_dir, "title.keys_autogenerated", true);
AttemptLoadKeyFile(yuzu_keys_dir, hactool_keys_dir, "console.keys", false);
AttemptLoadKeyFile(yuzu_keys_dir, yuzu_keys_dir, "console.keys_autogenerated", false);
+
+ for (const auto& key : s128_keys) {
+ if (key.first.type == S128KeyType::Titlekey) {
+ u128 rights_id{key.first.field1, key.first.field2};
+ Key128 rights_id_2;
+ std::memcpy(rights_id_2.data(), rights_id.data(), rights_id_2.size());
+ const auto ticket = Ticket::SynthesizeCommon(key.second, rights_id_2);
+ common_tickets.insert_or_assign(rights_id, ticket);
+ }
+ }
}
static bool ValidCryptoRevisionString(std::string_view base, size_t begin, size_t length) {
@@ -1029,15 +1109,15 @@ void KeyManager::PopulateFromPartitionData(PartitionDataManager& data) {
DeriveBase();
}
-const std::map<u128, TicketRaw>& KeyManager::GetCommonTickets() const {
+const std::map<u128, Ticket>& KeyManager::GetCommonTickets() const {
return common_tickets;
}
-const std::map<u128, TicketRaw>& KeyManager::GetPersonalizedTickets() const {
+const std::map<u128, Ticket>& KeyManager::GetPersonalizedTickets() const {
return personal_tickets;
}
-bool KeyManager::AddTicketCommon(TicketRaw raw) {
+bool KeyManager::AddTicketCommon(Ticket raw) {
const auto rsa_key = GetETicketRSAKey();
if (rsa_key == RSAKeyPair<2048>{})
return false;
@@ -1053,7 +1133,7 @@ bool KeyManager::AddTicketCommon(TicketRaw raw) {
return true;
}
-bool KeyManager::AddTicketPersonalized(TicketRaw raw) {
+bool KeyManager::AddTicketPersonalized(Ticket raw) {
const auto rsa_key = GetETicketRSAKey();
if (rsa_key == RSAKeyPair<2048>{})
return false;
diff --git a/src/core/crypto/key_manager.h b/src/core/crypto/key_manager.h
index 8a67b172d..ff6bd08e1 100644
--- a/src/core/crypto/key_manager.h
+++ b/src/core/crypto/key_manager.h
@@ -11,6 +11,7 @@
#include <boost/container/flat_map.hpp>
#include <fmt/format.h>
+#include "common/common_funcs.h"
#include "common/common_types.h"
#include "core/crypto/partition_data_manager.h"
#include "core/file_sys/vfs_types.h"
@@ -30,7 +31,76 @@ constexpr u64 TICKET_FILE_TITLEKEY_OFFSET = 0x180;
using Key128 = std::array<u8, 0x10>;
using Key256 = std::array<u8, 0x20>;
using SHA256Hash = std::array<u8, 0x20>;
-using TicketRaw = std::array<u8, 0x400>;
+
+enum class SignatureType {
+ RSA_4096_SHA1 = 0x10000,
+ RSA_2048_SHA1 = 0x10001,
+ ECDSA_SHA1 = 0x10002,
+ RSA_4096_SHA256 = 0x10003,
+ RSA_2048_SHA256 = 0x10004,
+ ECDSA_SHA256 = 0x10005,
+};
+
+u64 GetSignatureTypeDataSize(SignatureType type);
+u64 GetSignatureTypePaddingSize(SignatureType type);
+
+enum class TitleKeyType : u8 {
+ Common = 0,
+ Personalized = 1,
+};
+
+struct TicketData {
+ std::array<u8, 0x40> issuer;
+ union {
+ std::array<u8, 0x100> title_key_block;
+
+ struct {
+ Key128 title_key_common;
+ std::array<u8, 0xF0> title_key_common_pad;
+ };
+ };
+
+ INSERT_PADDING_BYTES(0x1);
+ TitleKeyType type;
+ INSERT_PADDING_BYTES(0x3);
+ u8 revision;
+ INSERT_PADDING_BYTES(0xA);
+ u64 ticket_id;
+ u64 device_id;
+ std::array<u8, 0x10> rights_id;
+ u32 account_id;
+ INSERT_PADDING_BYTES(0x14C);
+};
+static_assert(sizeof(TicketData) == 0x2C0, "TicketData has incorrect size.");
+
+struct Ticket {
+ SignatureType sig_type;
+ union {
+ struct {
+ std::array<u8, 0x200> sig_data;
+ INSERT_PADDING_BYTES(0x3C);
+ TicketData data;
+ } rsa_4096;
+
+ struct {
+ std::array<u8, 0x100> sig_data;
+ INSERT_PADDING_BYTES(0x3C);
+ TicketData data;
+ } rsa_2048;
+
+ struct {
+ std::array<u8, 0x3C> sig_data;
+ INSERT_PADDING_BYTES(0x40);
+ TicketData data;
+ } ecdsa;
+ };
+
+ TicketData& GetData();
+ const TicketData& GetData() const;
+ u64 GetSize() const;
+
+ static Ticket SynthesizeCommon(Key128 title_key, std::array<u8, 0x10> rights_id);
+};
static_assert(sizeof(Key128) == 16, "Key128 must be 128 bytes big.");
static_assert(sizeof(Key256) == 32, "Key256 must be 256 bytes big.");
@@ -158,8 +228,8 @@ public:
static bool KeyFileExists(bool title);
- // Call before using the sd seed to attempt to derive it if it dosen't exist. Needs system save
- // 8*43 and the private file to exist.
+ // Call before using the sd seed to attempt to derive it if it dosen't exist. Needs system
+ // save 8*43 and the private file to exist.
void DeriveSDSeedLazy();
bool BaseDeriveNecessary() const;
@@ -169,19 +239,19 @@ public:
void PopulateFromPartitionData(PartitionDataManager& data);
- const std::map<u128, TicketRaw>& GetCommonTickets() const;
- const std::map<u128, TicketRaw>& GetPersonalizedTickets() const;
+ const std::map<u128, Ticket>& GetCommonTickets() const;
+ const std::map<u128, Ticket>& GetPersonalizedTickets() const;
- bool AddTicketCommon(TicketRaw raw);
- bool AddTicketPersonalized(TicketRaw raw);
+ bool AddTicketCommon(Ticket raw);
+ bool AddTicketPersonalized(Ticket raw);
private:
std::map<KeyIndex<S128KeyType>, Key128> s128_keys;
std::map<KeyIndex<S256KeyType>, Key256> s256_keys;
// Map from rights ID to ticket
- std::map<u128, TicketRaw> common_tickets;
- std::map<u128, TicketRaw> personal_tickets;
+ std::map<u128, Ticket> common_tickets;
+ std::map<u128, Ticket> personal_tickets;
std::array<std::array<u8, 0xB0>, 0x20> encrypted_keyblobs{};
std::array<std::array<u8, 0x90>, 0x20> keyblobs{};
@@ -216,11 +286,11 @@ std::array<u8, 0x90> DecryptKeyblob(const std::array<u8, 0xB0>& encrypted_keyblo
std::optional<Key128> DeriveSDSeed();
Loader::ResultStatus DeriveSDKeys(std::array<Key256, 2>& sd_keys, KeyManager& keys);
-std::vector<TicketRaw> GetTicketblob(const FileUtil::IOFile& ticket_save);
+std::vector<Ticket> GetTicketblob(const FileUtil::IOFile& ticket_save);
-// Returns a pair of {rights_id, titlekey}. Fails if the ticket has no certificate authority (offset
-// 0x140-0x144 is zero)
-std::optional<std::pair<Key128, Key128>> ParseTicket(const TicketRaw& ticket,
+// Returns a pair of {rights_id, titlekey}. Fails if the ticket has no certificate authority
+// (offset 0x140-0x144 is zero)
+std::optional<std::pair<Key128, Key128>> ParseTicket(const Ticket& ticket,
const RSAKeyPair<2048>& eticket_extended_key);
} // namespace Core::Crypto
diff --git a/src/core/hle/service/es/es.cpp b/src/core/hle/service/es/es.cpp
index d17fb778c..7e01f88b9 100644
--- a/src/core/hle/service/es/es.cpp
+++ b/src/core/hle/service/es/es.cpp
@@ -75,15 +75,15 @@ private:
const auto ticket = ctx.ReadBuffer();
const auto cert = ctx.ReadBuffer(1);
- if (ticket.size() < sizeof(Core::Crypto::TicketRaw)) {
+ if (ticket.size() < sizeof(Core::Crypto::Ticket)) {
LOG_ERROR(Service_ETicket, "The input buffer is not large enough!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_ARGUMENT);
return;
}
- Core::Crypto::TicketRaw raw;
- std::memcpy(raw.data(), ticket.data(), sizeof(Core::Crypto::TicketRaw));
+ Core::Crypto::Ticket raw{};
+ std::memcpy(&raw, ticket.data(), sizeof(Core::Crypto::Ticket));
if (!keys.AddTicketPersonalized(raw)) {
LOG_ERROR(Service_ETicket, "The ticket could not be imported!");
@@ -203,7 +203,7 @@ private:
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);
- rb.Push<u64>(ticket.size());
+ rb.Push<u64>(ticket.GetSize());
}
void GetPersonalizedTicketSize(Kernel::HLERequestContext& ctx) {
@@ -219,7 +219,7 @@ private:
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);
- rb.Push<u64>(ticket.size());
+ rb.Push<u64>(ticket.GetSize());
}
void GetCommonTicketData(Kernel::HLERequestContext& ctx) {
@@ -233,8 +233,8 @@ private:
const auto ticket = keys.GetCommonTickets().at(rights_id);
- const auto write_size = std::min(ticket.size(), ctx.GetWriteBufferSize());
- ctx.WriteBuffer(ticket.data(), write_size);
+ const auto write_size = std::min(ticket.GetSize(), ctx.GetWriteBufferSize());
+ ctx.WriteBuffer(&ticket, write_size);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);
@@ -252,8 +252,8 @@ private:
const auto ticket = keys.GetPersonalizedTickets().at(rights_id);
- const auto write_size = std::min(ticket.size(), ctx.GetWriteBufferSize());
- ctx.WriteBuffer(ticket.data(), write_size);
+ const auto write_size = std::min(ticket.GetSize(), ctx.GetWriteBufferSize());
+ ctx.WriteBuffer(&ticket, write_size);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 15:17:09 +0100