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[AES] Panic when no generator key is provided

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wheremyfoodat 2023-08-15 16:03:04 +03:00
parent e40b2c4b1a
commit 4c004ab028
2 changed files with 8 additions and 0 deletions
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1
include/crypto/aes_engine.hpp
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@ -105,6 +105,7 @@ namespace Crypto {
AESEngine() {} AESEngine() {}
void loadKeys(const std::filesystem::path& path); void loadKeys(const std::filesystem::path& path);
bool haveKeys() { return keysLoaded; } bool haveKeys() { return keysLoaded; }
bool haveGenerator() { return m_generator.has_value(); }
constexpr bool hasKeyX(std::size_t slotId) { constexpr bool hasKeyX(std::size_t slotId) {
if (slotId >= AesKeySlotCount) { if (slotId >= AesKeySlotCount) {

7
src/core/loader/ncch.cpp
View file

@ -131,6 +131,13 @@ bool NCCH::loadFromHeader(Crypto::AESEngine &aesEngine, IOFile& file, const FSIn
return false; return false;
} }
if (!aesEngine.haveGenerator()) {
Helpers::panic(
"Loading an encrypted ROM but your AES keys don't seem to provide the \"generator\" constant which Panda3DS requires for decryption\n"
"Please add it to your aes_keys.txt in a line like \"generator=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\" where the Xs are replaced with the actual generator constant value"
);
}
if (!gotCryptoKeys) { if (!gotCryptoKeys) {
Helpers::panic("ROM is encrypted but it seems we couldn't get either the primary or the secondary key"); Helpers::panic("ROM is encrypted but it seems we couldn't get either the primary or the secondary key");
return false; return false;