void log(LogMessage msg)
{
if (mPrependChannelName)
{
msg.mText.insert(0, gTypeNameTable[static_cast<u32>(msg.mType)].mName);
}
mFile.Write(msg.mText);
}
void log(const LogMessage &msg)
{
std::string text = msg.mText;
if (mPrependChannelName)
{
text.insert(0, gTypeNameTable[static_cast<u32>(msg.mType)].mName);
}
mFile.Write(text);
}
int Decrypt(rFile& pkg_f, rFile& dec_pkg_f, PKGHeader* m_header)
{
if (!LoadHeader(pkg_f, m_header))
return -1;
aes_context c;
u8 iv[HASH_LEN];
u8 buf[BUF_SIZE];
u8 ctr[BUF_SIZE];
// Debug key
u8 key[0x40];
memset(key, 0, 0x40);
memcpy(key+0x00, &m_header->qa_digest[0], 8); // &data[0x60]
memcpy(key+0x08, &m_header->qa_digest[0], 8); // &data[0x60]
memcpy(key+0x10, &m_header->qa_digest[8], 8); // &data[0x68]
memcpy(key+0x18, &m_header->qa_digest[8], 8); // &data[0x68]
pkg_f.Seek(m_header->data_offset);
u32 parts = (m_header->data_size + BUF_SIZE - 1) / BUF_SIZE;
wxProgressDialog pdlg("PKG Decrypter / Installer", "Please wait, decrypting...", parts, 0, wxPD_AUTO_HIDE | wxPD_APP_MODAL);
memcpy(iv, m_header->klicensee, sizeof(iv));
aes_setkey_enc(&c, PKG_AES_KEY, 128);
for (u32 i=0; i<parts; i++)
{
memset(buf, 0, sizeof(buf));
u32 length = pkg_f.Read(buf, BUF_SIZE);
u32 bits = (length + HASH_LEN - 1) / HASH_LEN;
if (m_header->pkg_type == PKG_RELEASE_TYPE_DEBUG)
{
for (u32 j=0; j<bits; j++)
{
u8 hash[0x14];
sha1(key, 0x40, hash);
*(u64*)&buf[j*HASH_LEN + 0] ^= *(u64*)&hash[0];
*(u64*)&buf[j*HASH_LEN + 8] ^= *(u64*)&hash[8];
*(be_t<u64>*)&key[0x38] += 1;
}
}
if (m_header->pkg_type == PKG_RELEASE_TYPE_RELEASE)
{
for (u32 j=0; j<bits; j++)
{
aes_crypt_ecb(&c, AES_ENCRYPT, iv, ctr+j*HASH_LEN);
be_t<u64> hi = be_t<u64>::MakeFromBE(*(u64*)&iv[0]);
be_t<u64> lo = be_t<u64>::MakeFromBE(*(u64*)&iv[8]);
lo++;
if (lo == 0)
hi += 1;
*(be_t<u64>*)&iv[0] = hi;
*(be_t<u64>*)&iv[8] = lo;
}
for (u32 j=0; j<length; j++) {
buf[j] ^= ctr[j];
}
}
dec_pkg_f.Write(buf, length);
pdlg.Update(i);
}
pdlg.Update(parts);
return 0;
}
