int main()
{
Botan::LibraryInitializer init;
AutoSeeded_RNG rng;
std::string passphrase = "secret";
std::ifstream infile("readme.txt");
std::ofstream outfile("readme.txt.enc");
PKCS5_PBKDF2 pbkdf2(new HMAC(new SHA_160));
pbkdf2.set_iterations(4096);
pbkdf2.new_random_salt(rng, 8);
SecureVector<byte> the_salt = pbkdf2.current_salt();
SecureVector<byte> master_key = pbkdf2.derive_key(48, passphrase).bits_of();
KDF* kdf = get_kdf("KDF2(SHA-1)");
SymmetricKey key = kdf->derive_key(20, master_key, "cipher key");
SymmetricKey mac_key = kdf->derive_key(20, master_key, "hmac key");
InitializationVector iv = kdf->derive_key(8, master_key, "cipher iv");
Pipe pipe(new Fork(
new Chain(
get_cipher("Blowfish/CBC/PKCS7", key, iv, ENCRYPTION),
new Base64_Encoder,
new DataSink_Stream(outfile)
),
new Chain(
new MAC_Filter("HMAC(SHA-1)", mac_key),
new Hex_Encoder)
)
);
outfile.write((const char*)the_salt.begin(), the_salt.size());
pipe.start_msg();
infile >> pipe;
pipe.end_msg();
SecureVector<byte> hmac = pipe.read_all(1);
outfile.write((const char*)hmac.begin(), hmac.size());
}
bool BotanWrapper::EncryptFile(QString Source, QString Destination)
{
QFileInfo name = Source;
QString base = name.baseName();
QString encrypted1 = eoutput + base + ".gg";
QString encrypted2 = toutput + base + ".twofish";
QFile e(encrypted1);
QFile t(encrypted2);
try
{
//Setup the key derive functions
PKCS5_PBKDF2 pbkdf2(new HMAC(new Keccak_1600));
const u32bit PBKDF2_ITERATIONS = 700000;
qDebug() << "create keys";
//Create the KEY and IV
KDF* kdf = get_kdf("KDF2(SHA-512)");
AutoSeeded_RNG rng;
qDebug() << "create salt";
SecureVector<byte> salt(256);
rng.randomize(&salt[0], salt.size());
mSalt = salt;
qDebug() << "create master key";
//Create the master key
SecureVector<byte> mMaster = pbkdf2.derive_key(128, mPassword.toStdString(), &mSalt[0], mSalt.size(),PBKDF2_ITERATIONS).bits_of();
SymmetricKey mKey = kdf->derive_key(32, mMaster, "salt1");
InitializationVector mIV = kdf->derive_key(16, mMaster, "salt2");
qDebug() << "start encryption";
string inFilename = Source.toStdString();
string outFilename = encrypted1.toStdString();
std::ifstream inFile(inFilename.c_str());
std::ofstream outFile(outFilename.c_str());
Pipe pipe(get_cipher("AES-256/EAX", mKey, mIV,ENCRYPTION),new DataSink_Stream(outFile));
outFile.write((const char*)mSalt.begin(), mSalt.size());
pipe.start_msg();
inFile >> pipe;
pipe.end_msg();
outFile.flush();
outFile.close();
inFile.close();
QMessageBox msgBox;
/*****************TWOFISH ENCRYPTION********************/
qDebug() << "Twofish";
//Setup the key derive functions
PKCS5_PBKDF2 pbkdf3(new HMAC(new Skein_512));
//Create the KEY and IV
KDF* kdf2 = get_kdf("KDF2(Whirlpool)");
SecureVector<byte> salt2(256);
rng.randomize(&salt2[0], salt2.size());
mSalt2 = salt2;
//Create the master key
SecureVector<byte> mMaster2 = pbkdf3.derive_key(128, mPassword2.toStdString(), &mSalt2[0], mSalt2.size(),PBKDF2_ITERATIONS).bits_of();
SymmetricKey mKey2 = kdf2->derive_key(32, mMaster2, "salt1");
InitializationVector mIV2 = kdf2->derive_key(16, mMaster2, "salt2");
string inFilename2 = encrypted1.toStdString();
string outFilename2 = encrypted2.toStdString();
std::ifstream inFile2(inFilename2.c_str());
std::ofstream outFile2(outFilename2.c_str());
Pipe pipe2(get_cipher("Twofish/CFB", mKey2, mIV2,ENCRYPTION),new DataSink_Stream(outFile2));
outFile2.write((const char*)mSalt2.begin(), mSalt2.size());
pipe2.start_msg();
inFile2 >> pipe2;
pipe2.end_msg();
outFile2.flush();
outFile2.close();
inFile2.close();
/**************************SERPENT ENCRYPTION*****************/
//Create the KEY and IV
KDF* kdf3 = get_kdf("KDF2(Tiger)");
SecureVector<byte> salt3(256);
rng.randomize(&salt3[0], salt3.size());
mSalt3 = salt3;
//Create the master key
SecureVector<byte> mMaster3 = pbkdf2.derive_key(128, mPassword3.toStdString(), &mSalt3[0], mSalt3.size(),PBKDF2_ITERATIONS).bits_of();
SymmetricKey mKey3 = kdf3->derive_key(32, mMaster3, "salt1");
InitializationVector mIV3 = kdf3->derive_key(16, mMaster3, "salt2");
string inFilename3 = encrypted2.toStdString();
string outFilename3 = Destination.toStdString();
std::ifstream inFile3(inFilename3.c_str());
std::ofstream outFile3(outFilename3.c_str());
qDebug() << "serpent";
Pipe pipe3(get_cipher("Serpent/CBC/PKCS7", mKey3, mIV3,ENCRYPTION),new DataSink_Stream(outFile3));
outFile3.write((const char*)mSalt3.begin(), mSalt3.size());
pipe3.start_msg();
inFile3 >> pipe3;
pipe3.end_msg();
outFile3.flush();
outFile3.close();
inFile3.close();
msgBox.setText("Success!");
msgBox.setInformativeText("File successfully encrypted!");
msgBox.setStandardButtons(QMessageBox::Ok);
msgBox.setDefaultButton(QMessageBox::Ok);
msgBox.exec();
e.remove(); t.remove();
return true;
}
catch(...)
{
return false;
}
}
bool BotanWrapper::DecryptFile(QString Source, QString Destination)
{
//qDebug() << "\n\n";
QFileInfo name = Source;
//qDebug() << Source;
QString base = name.baseName();
//qDebug() << base;
QString encrypted3 = soutput + base + ".serpentdecrypted";
//qDebug() << soutput;
QString encrypted4 = tfoutput + base + ".twofishdecrypted";
//qDebug() << toutput;
try
{
//Setup the key derive functions
PKCS5_PBKDF2 pbkdf2(new HMAC(new Keccak_1600));
const u32bit PBKDF2_ITERATIONS = 700000;
string inFilename3 = Source.toStdString();
string outFilename3 = encrypted3.toStdString();
std::ifstream in3(inFilename3.c_str(),std::ios::binary);
std::ofstream out3(outFilename3.c_str(),std::ios::binary);
char* salt3 = new char[256];
in3.read(salt3 , 256 );
qDebug() << "create salt";
SecureVector<byte> salts3((const byte*)salt3, 256 ) ;
mSalt3 = salts3;
//Create the KEY and IV
KDF* kdf3 = get_kdf("KDF2(Tiger)");
qDebug() << "create master key";
//Create the master key
SecureVector<byte> mMaster3 = pbkdf2.derive_key(128, mPassword3.toStdString(), &mSalt3[0], mSalt3.size(),PBKDF2_ITERATIONS).bits_of();
SymmetricKey mKey3 = kdf3->derive_key(32, mMaster3, "salt1");
InitializationVector mIV3 = kdf3->derive_key(16, mMaster3, "salt2");
qDebug() << "begin serpent decrypt";
Pipe pipe3(get_cipher("Serpent/CBC/PKCS7", mKey3, mIV3,DECRYPTION),new DataSink_Stream(out3));
pipe3.start_msg();
in3 >> pipe3;
pipe3.end_msg();
out3.flush();
out3.close();
in3.close();
/*************************TWOFISH DECRYPTION*************************/
PKCS5_PBKDF2 pbkdf3(new HMAC(new Skein_512));
string inFilename2 = encrypted3.toStdString();
string outFilename2 = encrypted4.toStdString();
std::ifstream in2(inFilename2.c_str(),std::ios::binary);
std::ofstream out2(outFilename2.c_str(),std::ios::binary);
char* salt2 = new char[256];
in2.read(salt2 , 256 );
SecureVector<byte> salts2((const byte*)salt2, 256 ) ;
mSalt2 = salts2;
//Create the KEY and IV
KDF* kdf2 = get_kdf("KDF2(Whirlpool)");
//Create the master key
SecureVector<byte> mMaster2 = pbkdf3.derive_key(128, mPassword2.toStdString(), &mSalt2[0], mSalt2.size(),PBKDF2_ITERATIONS).bits_of();
SymmetricKey mKey2 = kdf2->derive_key(32, mMaster2, "salt1");
InitializationVector mIV2 = kdf2->derive_key(16, mMaster2, "salt2");
qDebug() << "twofish";
Pipe pipe2(get_cipher("Twofish/CFB", mKey2, mIV2,DECRYPTION),new DataSink_Stream(out2));
pipe2.start_msg();
in2 >> pipe2;
pipe2.end_msg();
out2.flush();
out2.close();
in2.close();
/************AES DECRYPTION*************************/
string inFilename = encrypted4.toStdString();
string outFilename = Destination.toStdString();
std::ifstream in(inFilename.c_str(),std::ios::binary);
std::ofstream out(outFilename.c_str(),std::ios::binary);
char* salt = new char[256];
in.read(salt , 256 );
SecureVector<byte> salts((const byte*)salt, 256 ) ;
mSalt = salts;
//Create the KEY and IV
KDF* kdf = get_kdf("KDF2(SHA-512)");
//Create the master key
SecureVector<byte> mMaster = pbkdf2.derive_key(128, mPassword.toStdString(), &mSalt[0], mSalt.size(),PBKDF2_ITERATIONS).bits_of();
SymmetricKey mKey = kdf->derive_key(32, mMaster, "salt1");
InitializationVector mIV = kdf->derive_key(16, mMaster, "salt2");
qDebug() << "AES";
Pipe pipe(get_cipher("AES-256/EAX", mKey, mIV,DECRYPTION),new DataSink_Stream(out));
pipe.start_msg();
in >> pipe;
pipe.end_msg();
out.flush();
out.close();
in.close();
QMessageBox msgBox;
msgBox.setText("Success!");
msgBox.setInformativeText("File successfully decrypted!");
msgBox.setStandardButtons(QMessageBox::Ok);
msgBox.setDefaultButton(QMessageBox::Ok);
msgBox.exec();
QFile s(encrypted3), t(encrypted4);
s.remove(); t.remove();
return true;
}
catch(...)
{
return false;
}
}