mirror of
https://github.com/Dark98/threeSD.git
synced 2026-07-03 08:39:04 +00:00
Pengfei
87 lines
2.8 KiB
C++
87 lines
2.8 KiB
C++
// Copyright 2020 Pengfei Zhu
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <cstring>
|
|
#include <string_view>
|
|
#include <cryptopp/rsa.h>
|
|
#include "common/alignment.h"
|
|
#include "common/assert.h"
|
|
#include "common/common_funcs.h"
|
|
#include "common/file_util.h"
|
|
#include "common/string_util.h"
|
|
#include "core/ncch/cia_common.h"
|
|
#include "core/ncch/ticket.h"
|
|
|
|
namespace Core {
|
|
|
|
bool Ticket::Load(const std::vector<u8> file_data, std::size_t offset) {
|
|
if (!signature.Load(file_data, offset)) {
|
|
return false;
|
|
}
|
|
TRY_MEMCPY(&body, file_data, offset + signature.GetSize(), sizeof(Body));
|
|
return true;
|
|
}
|
|
|
|
bool Ticket::Save(FileUtil::IOFile& file) const {
|
|
// signature
|
|
if (!signature.Save(file)) {
|
|
return false;
|
|
}
|
|
|
|
// body
|
|
if (file.WriteBytes(&body, sizeof(body)) != sizeof(body)) {
|
|
LOG_ERROR(Core, "Failed to write body");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool Ticket::ValidateSignature() const {
|
|
const auto issuer =
|
|
Common::StringFromFixedZeroTerminatedBuffer(body.issuer.data(), body.issuer.size());
|
|
return signature.Verify(issuer, [this](CryptoPP::PK_MessageAccumulator* message) {
|
|
message->Update(reinterpret_cast<const u8*>(&body), sizeof(body));
|
|
});
|
|
}
|
|
|
|
std::size_t Ticket::GetSize() const {
|
|
return signature.GetSize() + sizeof(body);
|
|
}
|
|
|
|
constexpr std::string_view TicketIssuer = "Root-CA00000003-XS0000000c";
|
|
|
|
// TODO: Make use of this?
|
|
constexpr std::string_view TicketIssuerDev = "Root-CA00000004-XS00000009";
|
|
|
|
// From GodMode9
|
|
constexpr std::array<u8, 44> TicketContentIndex{
|
|
{0x00, 0x01, 0x00, 0x14, 0x00, 0x00, 0x00, 0xAC, 0x00, 0x00, 0x00, 0x14, 0x00, 0x01, 0x00,
|
|
0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
|
|
0x00, 0x84, 0x00, 0x00, 0x00, 0x84, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
|
|
|
|
// Values taken from GodMode9
|
|
Ticket BuildFakeTicket(u64 title_id) {
|
|
Ticket ticket{};
|
|
|
|
ticket.signature.type = 0x10004; // RSA_2048 SHA256
|
|
ticket.signature.data.resize(0x100); // Size of RSA_2048 signature
|
|
std::memset(ticket.signature.data.data(), 0xFF, ticket.signature.data.size());
|
|
|
|
auto& body = ticket.body;
|
|
std::memcpy(body.issuer.data(), TicketIssuer.data(), TicketIssuer.size());
|
|
std::memset(body.ecc_public_key.data(), 0xFF, body.ecc_public_key.size());
|
|
body.version = 0x01;
|
|
std::memset(body.title_key.data(), 0xFF, body.title_key.size());
|
|
body.title_id = title_id;
|
|
body.common_key_index = 0x00;
|
|
body.audit = 0x01;
|
|
std::memcpy(body.content_index.data(), TicketContentIndex.data(), TicketContentIndex.size());
|
|
// GodMode9 by default sets all remaining 0x80 bytes to 0xFF
|
|
std::memset(body.content_index.data() + TicketContentIndex.size(), 0xFF, 0x80);
|
|
return ticket;
|
|
}
|
|
|
|
} // namespace Core
|