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argcracker: Reformat code, misc cleanup

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This commit is contained in:
Joshua Goins 2023-10-12 23:44:43 -04:00
parent 678304f583
commit 4c3a9795d2
2 changed files with 31 additions and 27 deletions
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41
argcracker/src/main.cpp
View file

@ -10,14 +10,16 @@
// from xivdev
static char ChecksumTable[] = {'f', 'X', '1', 'p', 'G', 't', 'd', 'S', '5', 'C', 'A', 'P', '4', '_', 'V', 'L'};
inline char GetChecksum(unsigned int key) {
inline char GetChecksum(unsigned int key)
{
auto value = key & 0x000F0000;
return ChecksumTable[value >> 16];
}
uint32_t TickCount();
inline QString encryptGameArg(QString arg) {
inline QString encryptGameArg(QString arg)
{
unsigned int rawTicks = TickCount();
unsigned int ticks = rawTicks & 0xFFFFFFFFu;
unsigned int key = ticks & 0xFFFF0000u;
@ -25,18 +27,16 @@ inline QString encryptGameArg(QString arg) {
char buffer[9] = {};
sprintf(buffer, "%08x", key);
Blowfish* session = physis_blowfish_initialize(reinterpret_cast<uint8_t *>(buffer), 9);
Blowfish *session = physis_blowfish_initialize(reinterpret_cast<uint8_t *>(buffer), 9);
uint8_t* out_data = nullptr;
uint8_t *out_data = nullptr;
uint32_t out_size = 0;
QByteArray toEncrypt = (QStringLiteral(" /T =%1").arg(ticks) + arg).toUtf8();
physis_blowfish_encrypt(session,
reinterpret_cast<uint8_t*>(toEncrypt.data()), toEncrypt.size(), &out_data, &out_size);
physis_blowfish_encrypt(session, reinterpret_cast<uint8_t *>(toEncrypt.data()), toEncrypt.size(), &out_data, &out_size);
QByteArray encryptedArg = QByteArray::fromRawData(
reinterpret_cast<const char*>(out_data), out_size);
QByteArray encryptedArg = QByteArray::fromRawData(reinterpret_cast<const char *>(out_data), out_size);
QString base64 = QString::fromUtf8(encryptedArg.toBase64(QByteArray::Base64Option::Base64UrlEncoding | QByteArray::Base64Option::OmitTrailingEquals));
char checksum = GetChecksum(key);
@ -44,45 +44,46 @@ inline QString encryptGameArg(QString arg) {
return QStringLiteral("//**sqex0003%1%2**//").arg(base64, QLatin1String(&checksum, 1));
}
inline QString decryptGameArg(uint32_t tickCount, QString sqexString) {
inline QString decryptGameArg(uint32_t tickCount, QString sqexString)
{
unsigned int ticks = tickCount & 0xFFFFFFFFu;
unsigned int key = ticks & 0xFFFF0000u;
char buffer[9] = {};
sprintf(buffer, "%08x", key);
Blowfish* session = physis_blowfish_initialize(reinterpret_cast<uint8_t *>(buffer), 9);
Blowfish *session = physis_blowfish_initialize(reinterpret_cast<uint8_t *>(buffer), 9);
QStringRef base64String(&sqexString, 12, sqexString.length() - 5 - 12);
QByteArray base64Decoded = QByteArray::fromBase64(base64String.toUtf8(), QByteArray::Base64Option::Base64UrlEncoding | QByteArray::Base64Option::OmitTrailingEquals);
QByteArray base64Decoded =
QByteArray::fromBase64(base64String.toUtf8(), QByteArray::Base64Option::Base64UrlEncoding | QByteArray::Base64Option::OmitTrailingEquals);
uint8_t* out_data = nullptr;
uint8_t *out_data = nullptr;
uint32_t out_size = 0;
physis_blowfish_decrypt(session,
reinterpret_cast<uint8_t*>(base64Decoded.data()), base64Decoded.size(), &out_data, &out_size);
physis_blowfish_decrypt(session, reinterpret_cast<uint8_t *>(base64Decoded.data()), base64Decoded.size(), &out_data, &out_size);
QByteArray decrypted = QByteArray::fromRawData(
reinterpret_cast<const char*>(out_data), out_size).trimmed();
QByteArray decrypted = QByteArray::fromRawData(reinterpret_cast<const char *>(out_data), out_size).trimmed();
return QString::fromUtf8(decrypted);
}
int main(int argc, char* argv[]) {
int main(int argc, char *argv[])
{
if (argc < 4) {
qInfo() << "Usage: novus-argcracker [sqexarg string] [tick range] [known arg]";
return 1;
}
const char* toCrack = argv[1];
const char *toCrack = argv[1];
int tickRange = atoi(argv[2]);
const char* knownArg = argv[3];
const char *knownArg = argv[3];
uint32_t bottom = TickCount() - tickRange;
qInfo() << "Beginning to crack" << toCrack << "...";
for(uint32_t i = bottom; i < TickCount(); i++) {
for (uint32_t i = bottom; i < TickCount(); i++) {
const QString decrypted = decryptGameArg(i, QLatin1String(toCrack));
if (decrypted.contains(QLatin1String(knownArg))) {

17
argcracker/src/tickcount.cpp
View file

@ -4,22 +4,23 @@
#include <cstdint>
#if defined(MACOS)
#include <mach/mach_time.h>
#include <sys/sysctl.h>
#include <mach/mach_time.h>
#include <sys/sysctl.h>
#endif
#if defined(WIN32)
#include <windows.h>
#include <windows.h>
#endif
#if defined(MACOS)
// from XIV-on-Mac, I think it changed in recent Wine versions?
uint32_t TickCount() {
uint32_t TickCount()
{
struct mach_timebase_info timebase;
mach_timebase_info(&timebase);
auto machtime = mach_continuous_time();
auto numer = uint64_t (timebase.numer);
auto numer = uint64_t(timebase.numer);
auto denom = uint64_t(timebase.denom);
auto monotonic_time = machtime * numer / denom / 100;
return monotonic_time / 10000;
@ -29,7 +30,8 @@ uint32_t TickCount() {
#if defined(LINUX)
#include <ctime>
uint32_t TickCount() {
uint32_t TickCount()
{
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
@ -39,7 +41,8 @@ uint32_t TickCount() {
#endif
#if defined(WIN32)
uint32_t TickCount() {
uint32_t TickCount()
{
return GetTickCount();
}
#endif