ReturnStateContext EngimaState::onRun(QKeyboard &kb) {
StateBase* nextState = this;
static uint32_t LastScrollTime = HAL_GetTick();
switch (InternalState) {
case SET_WHEEL:
gui_lable_multiline("Enter password (for rotors)", 0, 10, 128, 64, 0, 0);
kb.updateContext(getKeyboardContext());
gui_lable_multiline(&Wheels[0], 0, 30, 128, 64, 0, 0);
if (kb.getLastKeyReleased() == 11) {
InternalState = PLUG_BOARD;
getKeyboardContext().finalize();
getKeyboardContext().init(&PlugBoard[0], sizeof(PlugBoard));
} else if (kb.getLastKeyReleased() == 9) {
nextState = StateFactory::getMenuState();
}
break;
case PLUG_BOARD:
gui_lable_multiline("Enter plug board pairs:", 0, 10, 128, 64, 0, 0);
kb.updateContext(getKeyboardContext());
gui_lable_multiline(&PlugBoard[0], 0, 30, 128, 64, 0, 0);
if (kb.getLastKeyReleased() == 11) {
InternalState = ENTER_MESSAGE;
getKeyboardContext().finalize();
getKeyboardContext().init(&EntryBuffer[0], sizeof(EntryBuffer));
} else if (kb.getLastKeyReleased() == 9) {
nextState = StateFactory::getMenuState();
}
break;
case ENTER_MESSAGE: {
gui_lable_multiline("Enter cipher text: ", 0, 10, 128, 64, 0, 0);
kb.updateContext(getKeyboardContext());
uint16_t offset =
getKeyboardContext().getCursorPosition() > 37 ? getKeyboardContext().getCursorPosition() - 32 : 0;
gui_lable_multiline(&EntryBuffer[offset], 0, 30, 128, 64, 0, 0);
if (kb.getLastKeyReleased() == 11) {
InternalState = DECRYPT;
getKeyboardContext().finalize();
crypt(&Wheels[0], &PlugBoard[0], strlen(&PlugBoard[0]), &EntryBuffer[0]);
DisplayOffset = 0;
LastScrollTime = HAL_GetTick();
} else if (kb.getLastKeyReleased() == 9) {
nextState = StateFactory::getMenuState();
}
}
break;
case DECRYPT: {
gui_lable_multiline("Decodes to:", 0, 10, 128, 64, 0, 0);
uint32_t decryptedLen = strlen(&EncryptResult[0]);
if (decryptedLen > 48 && ((HAL_GetTick()-LastScrollTime)>500)) {
LastScrollTime = HAL_GetTick();
DisplayOffset = (DisplayOffset + 1) % decryptedLen;
}
gui_lable_multiline(&EncryptResult[DisplayOffset], 0, 20, 128, 64, 0, 0);
if (kb.getLastKeyReleased() == 11) {
InternalState = QUEST_COMPLETION;
ShaOBJ sha;
sha256_init(&sha);
sha256_add(&sha, (const uint8_t*) getContactStore().getMyInfo().getPrivateKey(), ContactStore::PRIVATE_KEY_LENGTH);
sha256_add(&sha, (const uint8_t*) &EncryptResult[0], strlen(&EncryptResult[0]));
sha256_digest(&sha, &ResultHash[0]);
memset(&EntryBuffer[0], 0, sizeof(EntryBuffer));
sprintf(&EntryBuffer[0], "%02x%02x%02x%02x%02x%02x%02x%02x", ResultHash[0], ResultHash[1], ResultHash[2], ResultHash[3],
ResultHash[4], ResultHash[5], ResultHash[6], ResultHash[7]);
} else if (kb.getLastKeyReleased() == 9) {
nextState = StateFactory::getMenuState();
}
}
break;
case QUEST_COMPLETION:
gui_lable_multiline("Daemon code: ", 0, 10, 128, 64, 0, 0);
gui_lable_multiline(&EntryBuffer[0], 0, 30, 128, 64, 0, 0);
if (kb.getLastKeyReleased()==11) {
nextState = StateFactory::getMenuState();
}
break;
default:
break;
}
return ReturnStateContext(nextState);
}
void sha224_add(sha224_context* ctxt, const uint8_t data[], uint64_t length) {
sha256_add(ctxt, data, length);
}
