std::size_t genKeyIv(char* _chunk)
{
char* chunk = _chunk;
CryptoPP::AutoSeededRandomPool rnd;
{
CryptoPP::SecByteBlock key(0x00, CryptoPP::AES::DEFAULT_KEYLENGTH);
rnd.GenerateBlock(key, key.size());
byte iv[CryptoPP::AES::BLOCKSIZE];
rnd.GenerateBlock(iv, sizeof(iv));
setEncKeyWithIv(key.data(), key.SizeInBytes(), iv, sizeof(iv));
std::memcpy(chunk, key.data(), key.SizeInBytes());
chunk += key.SizeInBytes();
std::memcpy(chunk, iv, sizeof(iv));
chunk += sizeof(iv);
}
{
CryptoPP::SecByteBlock key(0x00, CryptoPP::AES::DEFAULT_KEYLENGTH);
rnd.GenerateBlock(key, key.size());
byte iv[CryptoPP::AES::BLOCKSIZE];
rnd.GenerateBlock(iv, sizeof(iv));
setDecKeyWithIv(key.data(), key.SizeInBytes(), iv, sizeof(iv));
std::memcpy(chunk, key.data(), key.SizeInBytes());
chunk += key.SizeInBytes();
std::memcpy(chunk, iv, sizeof(iv));
chunk += sizeof(iv);
}
return chunk - _chunk;
}
bool Session::do_key_exchange()
{
aes_buffer aes_tmp;
CryptoPP::AutoSeededRandomPool prng;
prng.GenerateBlock(this->aes.key, sizeof(aes_key));
prng.GenerateBlock(this->aes.iv, sizeof(aes_iv));
std::memcpy(&aes_tmp, &this->aes, sizeof(aes_buffer));
CryptoPP::CFB_Mode<CryptoPP::AES>::Encryption encryptor(aes_hard_key, sizeof(aes_key),
aes_hard_iv);
encryptor.ProcessData((uint8_t*)&aes_tmp, (uint8_t const*)&this->aes, sizeof(aes_buffer));
return (write(this->fd, &aes_tmp, sizeof(aes_buffer)) > 0);
}
void VhsmTest::testMac() {
VHSM vhsm;
ClientId cid;
cid.pid = 0; cid.veid = 0;
std::string user = "******";
std::string password = "******";
unsigned int mdsize;
char msg[BUF_SIZE];
std::vector<char> md;
CryptoPP::AutoSeededRandomPool rnd;
rnd.GenerateBlock((byte*)msg, BUF_SIZE);
byte realmd[CryptoPP::HMAC<CryptoPP::SHA1>::DIGESTSIZE];
CryptoPP::HMAC<CryptoPP::SHA1>((byte*)"", 0).CalculateDigest(realmd, (byte*)msg, BUF_SIZE);
VhsmSession s = vhsm.openSession(cid);
CPPUNIT_ASSERT_MESSAGE("login user failed", vhsm.loginUser(user, password, s.sid()));
CPPUNIT_ASSERT_MESSAGE("macInit failed", vhsm.macInit(HMAC, SHA1, s.sid(), "") == ERR_NO_ERROR);
CPPUNIT_ASSERT_MESSAGE("unsupported method accepted", vhsm.macInit((VhsmMacMechanismId)0, (VhsmDigestMechanismId)0, s.sid(), "") == ERR_BAD_MAC_METHOD);
CPPUNIT_ASSERT_MESSAGE("macUpdate failed", vhsm.macUpdate(s.sid(), std::string(msg, BUF_SIZE)) == ERR_NO_ERROR);
CPPUNIT_ASSERT_MESSAGE("invalid session id accepted", vhsm.macUpdate(s.sid() + 1, std::string(msg, BUF_SIZE)) == ERR_MAC_NOT_INITIALIZED);
CPPUNIT_ASSERT_MESSAGE("macGetSize failed", vhsm.macGetSize(s.sid(), &mdsize) == ERR_NO_ERROR);
CPPUNIT_ASSERT_MESSAGE("wrong size returned", mdsize == CryptoPP::HMAC<CryptoPP::SHA1>::DIGESTSIZE);
CPPUNIT_ASSERT_MESSAGE("invalid session id accepted", vhsm.macGetSize(s.sid() + 1, &mdsize) == ERR_MAC_NOT_INITIALIZED);
CPPUNIT_ASSERT_MESSAGE("macFinal failed", vhsm.macFinal(s.sid(), md) == ERR_NO_ERROR);
CPPUNIT_ASSERT_MESSAGE("double digest finalization", vhsm.macFinal(s.sid(), md) == ERR_MAC_NOT_INITIALIZED);
CPPUNIT_ASSERT_MESSAGE("wrong digest", memcmp(realmd, md.data(), CryptoPP::HMAC<CryptoPP::SHA1>::DIGESTSIZE) == 0);
CPPUNIT_ASSERT_MESSAGE("close session failed", vhsm.closeSession(cid, s));
}
void securityInfo::setPassword(const std::string &pw){
password=pw;
CryptoPP::PKCS5_PBKDF2_HMAC<CryptoPP::SHA1> pbkdf;
CryptoPP::AutoSeededRandomPool rng;
rng.GenerateBlock(pwsalt,pwsalt.size());
icpw=pbkdf.DeriveKey( key, key.size(), 0x00, (byte *) password.data(), password.size(),
pwsalt, pwsalt.size(), 0,0.5);
iciv=pbkdf.DeriveKey(iv, iv.size(), 0x00,(byte *) password.data(), password.size(), pwsalt, pwsalt.size(),
0,0.5);
}
void generateRandomKey(std::string name, byte* key, long unsigned int length)
{
CryptoPP::AutoSeededRandomPool prng;
//byte key[CryptoPP::AES::DEFAULT_KEYLENGTH];
prng.GenerateBlock(key, length);
std::string encoded;
CryptoPP::StringSource(key, length, true,
new CryptoPP::HexEncoder(
new CryptoPP::StringSink(encoded)
) // HexEncoder
); // StringSource
std::ofstream outfile;
std::string keyFile = "keys/" + name + ".key";
std::ofstream file_out(keyFile.c_str());
if(file_out.is_open())
{
file_out << encoded;
} //end if valid outfstream
file_out.close();
}
SecureBinaryData SecureBinaryData::GenerateRandom(uint32_t numBytes)
{
static CryptoPP::AutoSeededRandomPool prng;
SecureBinaryData randData(numBytes);
prng.GenerateBlock(randData.getPtr(), numBytes);
return randData;
}
// --------------------------------------------------------------------------
document::document () :
node(std::shared_ptr<document>(this, [](document*){})),
m_implementation(m_document)
// --------------------------------------------------------------------------
{
m_html = false;
m_mode = no_quirks_mode;
m_content_type = "application/xml";
m_encoding = "utf-8";
m_url = "about:blank";
if (global_object)
{
m_origin = global_object->m_document->m_origin;
m_script_origin = global_object->m_document->m_script_origin;
}
else
{
// Default is a globally unique identifier.
// We'll just generate 32 random bytes as the ID.
CryptoPP::AutoSeededRandomPool rng;
CryptoPP::HexEncoder enc;
byte bin[32];
char hex[64];
rng.GenerateBlock(bin, 32);
enc.PutMessageEnd(bin, 32);
enc.Get(reinterpret_cast<byte*>(hex), 64);
m_origin = hex;
m_script_origin = m_origin;
}
}
static std::string generateChallenge()
{
CryptoPP::AutoSeededRandomPool prng;
CryptoPP::SecByteBlock seed(16);
prng.GenerateBlock(seed, seed.size());
std::string challenge;
CryptoPP::ArraySource(seed, seed.size(), true, new CryptoPP::HexEncoder(new CryptoPP::StringSink(challenge)));
return challenge;
}
uint64_t
generateWord64()
{
static CryptoPP::AutoSeededRandomPool rng;
uint64_t random;
rng.GenerateBlock(reinterpret_cast<unsigned char*>(&random), 8);
return random;
}
std::string I2PControlSession::generateToken() const
{
byte random_data[I2P_CONTROL_TOKEN_SIZE] = {};
CryptoPP::AutoSeededRandomPool rng;
rng.GenerateBlock(random_data, I2P_CONTROL_TOKEN_SIZE);
std::string token;
CryptoPP::StringSource ss(
random_data, I2P_CONTROL_TOKEN_SIZE, true,
new CryptoPP::HexEncoder(new CryptoPP::StringSink(token))
);
return token;
}
bool encryptPacket(char* packet, byte* aes_key)
{
try
{
std::string plaintext(packet);
//Decode the key from the file
GCM< AES >::Encryption p;
//iv will help us with keying out cipher
//it is also randomly generated
byte iv[ AES::BLOCKSIZE ];
CryptoPP::AutoSeededRandomPool prng;
prng.GenerateBlock( iv, sizeof(iv) );
//Merge the iv and key
p.SetKeyWithIV( aes_key, CryptoPP::AES::DEFAULT_KEYLENGTH, iv, sizeof(iv) );
//Encode the IV
std::string encoded_iv;
CryptoPP::StringSource(iv, sizeof(iv), true,
new CryptoPP::HexEncoder(
new CryptoPP::StringSink(encoded_iv)
) // HexEncoder
);
//Create the ciphertext from the plaintext
std::string ciphertext;
CryptoPP::StringSource(plaintext, true,
new CryptoPP::AuthenticatedEncryptionFilter(p,
new CryptoPP::StringSink(ciphertext)
)
);
//Encode the cipher to be sent
std::string encodedCipher;
CryptoPP::StringSource(ciphertext, true,
new CryptoPP::HexEncoder(
new CryptoPP::StringSink(encodedCipher)
) // HexEncoder
);
//replace the packet with the econded ciphertext
strcpy(packet, (encoded_iv+encodedCipher).c_str());
packet[(encoded_iv+encodedCipher).size()] = '\0';
//printf("Encrypted packet size: %d\n", (int)strlen(packet));
}
catch(std::exception e)
{
return false;
}
return true;
} //end encryptPacket function
bool
SecTpmFile::generateRandomBlock(uint8_t* res, size_t size)
{
try {
CryptoPP::AutoSeededRandomPool rng;
rng.GenerateBlock(res, size);
return true;
}
catch (const CryptoPP::Exception& e) {
return false;
}
}
QByteArray encrypt(QByteArray in) {
byte iv[CryptoPP::AES::BLOCKSIZE];
rnd.GenerateBlock(iv, CryptoPP::AES::BLOCKSIZE);
QByteArray out = QByteArray((char*)iv, CryptoPP::AES::BLOCKSIZE);
int inputSize = in.size();
string cipher;
CBC_Mode<AES>::Encryption aes(keyByte(), keySize(), iv);
ArraySource((byte *)in.data(), inputSize, true, new StreamTransformationFilter(aes, new StringSink(cipher)));
QByteArray encryptedBytes = QByteArray(cipher.c_str(), cipher.size());
out.append(encryptedBytes);
return out;
}
void Container::set_seed(CryptoPP::SecByteBlock seed)
{
seed_ = seed;
CryptoPP::AutoSeededRandomPool prng;
CryptoPP::SecByteBlock t(seed.size());
prng.GenerateBlock(t, t.size());
for (auto p : mtl::count_until(t.size()))
{
seed_[p] ^= t[p];
}
prng_.IncorporateEntropy(seed_, seed_.size());
//enhance pw
for (auto b : seed)
{
enhanced_passphrase_.push_back(b);
}
}
int s3fs_encrypt(int fd, byte *key)
{
//randomly generate iv
CryptoPP::AutoSeededRandomPool prng;
byte iv[CryptoPP::AES::BLOCKSIZE];
prng.GenerateBlock(iv, sizeof(iv));
string rawiv(reinterpret_cast<char*>(iv), CryptoPP::AES::BLOCKSIZE), striv;
CryptoPP::StringSource s2(rawiv, true,
new CryptoPP::HexEncoder(
new CryptoPP::StringSink(striv)
)
);
//read file into char array
int flength = lseek(fd, 0, SEEK_END);
unsigned char* fcontents;
fcontents = (unsigned char*) calloc(flength, sizeof(char));
pread(fd, fcontents, flength, 0);
string plain(reinterpret_cast<char*>(fcontents), flength);
//encrypt plaintext into ciphertext
string cipher;
CryptoPP::CBC_Mode<CryptoPP::AES>::Encryption e;
e.SetKeyWithIV(key, CryptoPP::AES::DEFAULT_KEYLENGTH, iv);
CryptoPP::StringSource ss(plain, true,
new CryptoPP::StreamTransformationFilter(e,
new CryptoPP::HexEncoder(
new CryptoPP::StringSink(cipher)
)
)
);
//write iv and encrypted data to file
string output = striv+cipher;
const char *buf = output.c_str();
pwrite(fd, buf, output.length(), 0);
ftruncate(fd, output.length());
return 0;
}
void Pbkdf2::Work()
{
static const unsigned _PBKDF2_BYTE_ = 512 / 8;
boost::chrono::steady_clock::time_point start = boost::chrono::steady_clock::now();
CryptoPP::SecByteBlock byte_Derived(_PBKDF2_BYTE_);
CryptoPP::PKCS5_PBKDF2_HMAC<CryptoPP::Whirlpool> pbkdf2;
if(h_Worker == PBKDF2_GENERATE)
{
CryptoPP::SecByteBlock byte_Salt(_PBKDF2_BYTE_);
CryptoPP::AutoSeededRandomPool RNG;
RNG.GenerateBlock(byte_Salt, byte_Salt.size());
CryptoPP::ArraySource(byte_Salt, byte_Salt.size(), true, new CryptoPP::HexEncoder(new CryptoPP::StringSink(h_Salt)));
pbkdf2.DeriveKey(byte_Derived, byte_Derived.size(), 0x0, reinterpret_cast<const byte *>(h_Key.data()), h_Key.size(), reinterpret_cast<const byte *>(h_Salt.data()), h_Salt.size(), h_Iterations, 0);
CryptoPP::ArraySource(byte_Derived, byte_Derived.size(), true, new CryptoPP::HexEncoder(new CryptoPP::StringSink(h_Hash)));
}
else if(h_Worker == PBKDF2_VALIDATE)
{
pbkdf2.DeriveKey(byte_Derived, byte_Derived.size(), 0x0, reinterpret_cast<const byte *>(h_Key.data()), h_Key.size(), reinterpret_cast<const byte *>(h_Salt.data()), h_Salt.size(), h_Iterations, 0);
CryptoPP::SecByteBlock byte_Validate(_PBKDF2_BYTE_);
CryptoPP::StringSource(h_Hash, true, new CryptoPP::HexDecoder(new CryptoPP::ArraySink(byte_Validate, byte_Validate.size())));
// Length-constant comparison.
unsigned diff = _PBKDF2_BYTE_ ^ _PBKDF2_BYTE_;
for(unsigned i = 0; i < _PBKDF2_BYTE_; ++i)
{
diff |= byte_Derived[i] ^ byte_Validate[i];
}
h_Equal = diff == 0;
}
boost::chrono::steady_clock::duration duration = boost::chrono::steady_clock::now() - start;
h_ExecTime = static_cast<unsigned>(boost::chrono::duration_cast<boost::chrono::milliseconds>(duration).count());
}
QByteArray generateKey() {
byte key[32];
rnd.GenerateBlock(key, 32);
return UCharArrayToQByteArray(key, 32);
}
void CUTPSocketListner::Send(const byte* Buff, size_t uSize, const struct sockaddr* sa, socklen_t sa_len, uint8 Type)
{
TKeyMap::iterator I = m_SendKeys.find((struct sockaddr*)sa);
if(I == m_SendKeys.end())
return;
I->second->LastActivity = GetCurTick();
ASSERT(I->second->PassKey);
if(uSize > 0xFFFF - 0x80)
{
ASSERT(0);
return;
}
bool SendKey = false;
int PadLen = 16;
if(Type == 1) // if its a UTP packet lets be a bit smart
{
ASSERT(uSize >= 4);
UUtpHdr UtpHdr;
UtpHdr.Bits = *((uint32*)Buff);
if(UtpHdr.Fields.type == 4) // ST_SYN
SendKey = true; // we always send the passked on y UTP Sync packet
if(UtpHdr.Fields.type == 0) // ST_DATA
PadLen = 0; // we dont needto padd data frames as tahy may already on thair own have a random size
}
else //if(!I->second->bAck) // if we are not talking UDT lets always send the key just to be sure
SendKey = true;
char Buffer[0xFFFF];
byte* pBuffer = (byte*)Buffer;
size_t uLength = 0;
CryptoPP::AutoSeededRandomPool rng;
uint32 Rand = 0;
rng.GenerateBlock((byte*)&Rand, sizeof(uint32));
UHdr Hdr;
Hdr.Fields.Type = Type;
Hdr.Fields.Reserved = 0;
Hdr.Fields.Discard = 0; // total drop ist (n+1)*256
if(uSize >= 10 * 1024)
Hdr.Fields.Discard = 3; // discard only 1024 key bytes in total for large packets
Hdr.Fields.HasKey = SendKey;
if(PadLen)
PadLen = (rand() % (PadLen + 1)) & 0x3F; // ensure 64 bytes are available for optional footer entries
Hdr.Fields.PadLen = PadLen;
//if(Hdr.Fields.Reserved != 0)
// Hdr.Fields.PadLen += 4;
memcpy(pBuffer + uLength, &Rand, sizeof(uint32)); uLength += 4;
memcpy(pBuffer + uLength, &Hdr.Bits, sizeof(uint32)); uLength += 4;
if(Hdr.Fields.HasKey) {
memcpy(pBuffer + uLength, &m_RecvKey, sizeof(uint64)); uLength += 8; }
memcpy(pBuffer + uLength, Buff, uSize); uLength += uSize;
//if(Hdr.Fields.Reserved != 0) {
// memcpy(pBuffer + uLength, NEO_MAGIC, 4); uLength += 4; }
if(PadLen > 0) {
rng.GenerateBlock(pBuffer + uLength, PadLen); uLength += PadLen; }
CryptoPP::Weak1::MD5 md5;
md5.Update((byte*)&Rand, sizeof(Rand));
md5.Update((byte*)&I->second->PassKey, sizeof(uint64));
byte Hash[16];
md5.Final(Hash);
//#ifdef _DEBUG
// LogLine(LOG_INFO | LOG_DEBUG, L"Send to %s PassKey %I64u -> %s",
// CSafeAddress(sa, sa_len, sa_len == sizeof(sockaddr_in) ? CSafeAddress::eUTP_IP4 : CSafeAddress::eUTP_IP6).ToString().c_str(),
// I->second->PassKey, ToHex(Hash, 16).c_str());
//#endif
CryptoPP::Weak::ARC4::Encryption RC4;
RC4.SetKey(Hash, 16);
RC4.DiscardBytes(256);
RC4.ProcessData(pBuffer + 4, pBuffer + 4, 4);
if(Hdr.Fields.Discard)
RC4.DiscardBytes(Hdr.Fields.Discard * 256);
RC4.ProcessData(pBuffer + 8, pBuffer + 8, uLength - 8);
sendto(m_Socket, Buffer, (int)uLength, 0, (struct sockaddr*)sa, sa_len);
}
void Key::generate(){
byte key[keySize];
CryptoPP::AutoSeededRandomPool prng;
prng.GenerateBlock(key, keySize);
this->key.insert(this->key.begin(), &key[0], &key[keySize]);
}