52 lines
2.1 KiB
C++
52 lines
2.1 KiB
C++
/****************************************************************************
|
|
* Copyright (C) 2016-2021 Maschell
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
****************************************************************************/
|
|
#include "Ticket.h"
|
|
#include <algorithm>
|
|
#include <utils/logger.h>
|
|
|
|
Ticket::Ticket(const std::array<uint8_t, 16> &pEncryptedKey, const std::array<uint8_t, 16> &pDecryptedKey) : ticketKeyEnc(pEncryptedKey),
|
|
ticketKeyDec(pDecryptedKey) {
|
|
}
|
|
|
|
std::optional<std::shared_ptr<Ticket>> Ticket::make_shared(const std::vector<uint8_t> &data, std::optional<const std::array<uint8_t, 16>> commonKey) {
|
|
if (data.size() <= 0x1DC + 0x10) {
|
|
DEBUG_FUNCTION_LINE("Not enough data to parse a ticket");
|
|
return {};
|
|
}
|
|
|
|
std::array<uint8_t, 16> title_id{};
|
|
std::array<uint8_t, 16> decryptedKey{};
|
|
std::array<uint8_t, 16> encryptedKey{};
|
|
|
|
std::copy_n(data.begin() + 0x1BF, 0x10, decryptedKey.begin());
|
|
std::copy_n(data.begin() + 0x1BF, 0x10, encryptedKey.begin());
|
|
std::copy_n(data.begin() + 0x1DC, 0x10, title_id.begin());
|
|
|
|
uint8_t IV[0x10];
|
|
for (int i = 0; i < 8; i++) {
|
|
IV[i] = title_id[i];
|
|
IV[i + 8] = 0x00;
|
|
}
|
|
|
|
if (commonKey.has_value()) {
|
|
aes_set_key((uint8_t *) commonKey.value().data());
|
|
aes_decrypt(IV, encryptedKey.data(), decryptedKey.data(), 16);
|
|
}
|
|
|
|
return std::shared_ptr<Ticket>(new Ticket(encryptedKey, decryptedKey));
|
|
}
|