void GameStateGame::LoadGameSettings()
{
std::ifstream file;
file.open(std::string("media/Game.cfg"));
if (!file.is_open())
{
std::cout << "Failed loading Game.cfg" << std::endl;
}
std::string line;
while (std::getline(file, line))
{
if (line[0] == '|')
{
continue;
}
std::stringstream keystream(line);
std::string type;
keystream >> type;
if (type == "Map")
{
keystream >> m_mapName;
}
else
{
bool SpriteSheet::LoadSheet(const std::string& l_file){
std::ifstream sheet;
sheet.open(Utils::GetWorkingDirectory() + l_file);
if (!sheet.is_open()){
std::cout << "! Failed loading spritesheet: "
<< l_file << std::endl;
return false;
}
// Release the current spritesheet resources.
ReleaseSheet();
std::string line;
while(std::getline(sheet,line)){
if (line[0] == '|'){ continue; }
std::stringstream keystream(line);
std::string type;
keystream >> type;
if(type == "Texture"){
if (m_texture != ""){
std::cout << "! Duplicate texture entries in: " << l_file << std::endl;
continue;
}
std::string texture;
keystream >> texture;
if(!m_textureManager->RequireResource(texture))
{
std::cout << "! Could not set up the texture: " << texture << std::endl;
continue;
}
m_texture = texture;
m_sprite.setTexture(*m_textureManager->GetResource(m_texture));
} else if(type == "Size"){
keystream >> m_spriteSize.x >> m_spriteSize.y;
SetSpriteSize(m_spriteSize);
} else if(type == "Scale"){
void exercise19(){
// vector.push_back() is busted
/* Exercise 19 */
Xstr keystream("Z/kf0FmwkR2EwZr1qdZfgqaoWbSlLy/QGY/VRRhA9LAAA===", Xstr::BASE64_ENCODED);
string strings[38] = {
"SSBoYXZlIG1ldCB0aGVtIGF0IGNsb3NlIG9mIGRheQ==",
"Q29taW5nIHdpdGggdml2aWQgZmFjZXM=",
"RnJvbSBjb3VudGVyIG9yIGRlc2sgYW1vbmcgZ3JleQ==",
"RWlnaHRlZW50aC1jZW50dXJ5IGhvdXNlcy4=",
"SSBoYXZlIHBhc3NlZCB3aXRoIGEgbm9kIG9mIHRoZSBoZWFk",
"T3IgcG9saXRlIG1lYW5pbmdsZXNzIHdvcmRzLA==",
"T3IgaGF2ZSBsaW5nZXJlZCBhd2hpbGUgYW5kIHNhaWQ=",
"UG9saXRlIG1lYW5pbmdsZXNzIHdvcmRzLA==",
"QW5kIHRob3VnaHQgYmVmb3JlIEkgaGFkIGRvbmU=",
"T2YgYSBtb2NraW5nIHRhbGUgb3IgYSBnaWJl",
"VG8gcGxlYXNlIGEgY29tcGFuaW9u",
"QXJvdW5kIHRoZSBmaXJlIGF0IHRoZSBjbHViLA==",
"QmVpbmcgY2VydGFpbiB0aGF0IHRoZXkgYW5kIEk=",
"QnV0IGxpdmVkIHdoZXJlIG1vdGxleSBpcyB3b3JuOg==",
"QWxsIGNoYW5nZWQsIGNoYW5nZWQgdXR0ZXJseTo=",
"QSB0ZXJyaWJsZSBiZWF1dHkgaXMgYm9ybi4=",
"VGhhdCB3b21hbidzIGRheXMgd2VyZSBzcGVudA==",
"VW50aWwgaGVyIHZvaWNlIGdyZXcgc2hyaWxsLg==",
"V2hhdCB2b2ljZSBtb3JlIHN3ZWV0IHRoYW4gaGVycw==",
"V2hlbiB5b3VuZyBhbmQgYmVhdXRpZnVsLA==",
"U2hlIHJvZGUgdG8gaGFycmllcnM/",
"VGhpcyBtYW4gaGFkIGtlcHQgYSBzY2hvb2w=",
"QW5kIHJvZGUgb3VyIHdpbmdlZCBob3JzZS4=",
"VGhpcyBvdGhlciBoaXMgaGVscGVyIGFuZCBmcmllbmQ=",
"V2FzIGNvbWluZyBpbnRvIGhpcyBmb3JjZTs=",
"SGUgbWlnaHQgaGF2ZSB3b24gZmFtZSBpbiB0aGUgZW5kLA==",
"U28gc2Vuc2l0aXZlIGhpcyBuYXR1cmUgc2VlbWVkLA==",
"U28gZGFyaW5nIGFuZCBzd2VldCBoaXMgdGhvdWdodC4=",
"VGhpcyBvdGhlciBtYW4gSSBoYWQgZHJlYW1lZA==",
"QSBkcnVua2VuLCB2YWluLWdsb3Jpb3VzIGxvdXQu",
"SGUgaGFkIGRvbmUgbW9zdCBiaXR0ZXIgd3Jvbmc=",
"VG8gc29tZSB3aG8gYXJlIG5lYXIgbXkgaGVhcnQs",
"WWV0IEkgbnVtYmVyIGhpbSBpbiB0aGUgc29uZzs=",
"SGUsIHRvbywgaGFzIHJlc2lnbmVkIGhpcyBwYXJ0",
"SW4gdGhlIGNhc3VhbCBjb21lZHk7",
"VHJhbnNmb3JtZWQgdXR0ZXJseTo=",
"QSB0ZXJyaWJsZSBiZWF1dHkgaXMgYm9ybi4=",
};
vector<Xstr> ciphers;
Xstr random_key("Rfh9orvO75Iba9PsvseQPg==", Xstr::BASE64_ENCODED);
/* Make 8-byte nonce for CTR, fill with 0's
* We use the same nonce for all encryptions, which is where the
* weakness is */
Xstr nonce;
nonce.resize(AES::CTR_NONCE_SIZE, 0);
Xstr next_str;
Xstr next_cipher;
Xstr newstr;
string s;
// encrypt the strings
for(int i = 0; i < 37; i++){
newstr = Xstr(strings[i], Xstr::BASE64_ENCODED);
next_cipher = BlockCipher::encrypt(EncryptType::CTR_ENCRYPT, newstr, random_key, nonce);
ciphers.push_back( next_cipher );
}
// get keystream with partially solved characters
Xstr cracked_keystream = break_fixed_nonce_CTR_by_substituting(ciphers);
// I could waste my time guessing and complete the keystream, but I
// have better things to do :)
crypto_exercise_test(19,
keystream == cracked_keystream
);
}
