/////////////////////////////////////////////////////////////////////////////
// Same as above, but only changing the AES mode of operation (CBC, not CFB)
SecureBinaryData CryptoAES::EncryptCBC(SecureBinaryData & data,
SecureBinaryData & key,
SecureBinaryData & iv)
{
if(CRYPTO_DEBUG)
{
cout << "AES Decrypt" << endl;
cout << " BinData: " << data.toHexStr() << endl;
cout << " BinKey : " << key.toHexStr() << endl;
cout << " BinIV : " << iv.toHexStr() << endl;
}
if(data.getSize() == 0)
return SecureBinaryData(0);
SecureBinaryData encrData(data.getSize());
// Caller can supply their own IV/entropy, or let it be generated here
// (variable "iv" is a reference, so check it on the way out)
if(iv.getSize() == 0)
iv = SecureBinaryData().GenerateRandom(BTC_AES::BLOCKSIZE);
BTC_CBC_MODE<BTC_AES>::Encryption aes_enc( (byte*)key.getPtr(),
key.getSize(),
(byte*)iv.getPtr());
aes_enc.ProcessData( (byte*)encrData.getPtr(),
(byte*)data.getPtr(),
data.getSize());
return encrData;
}
SecureBinaryData CryptoAES::Encrypt(SecureBinaryData & data,
SecureBinaryData & key,
SecureBinaryData & iv)
{
if(CRYPTO_DEBUG)
{
cout << "AES Decrypt" << endl;
cout << " BinData: " << data.toHexStr() << endl;
cout << " BinKey : " << key.toHexStr() << endl;
cout << " BinIV : " << iv.toHexStr() << endl;
}
if(data.getSize() == 0)
return SecureBinaryData(0);
SecureBinaryData encrData(data.getSize());
//cout << " StartPlain: " << data.toHexStr() << endl;
//cout << " Key Data : " << key.toHexStr() << endl;
// Caller can supply their own IV/entropy, or let it be generated here
if(iv.getSize() == 0)
iv = SecureBinaryData().GenerateRandom(BTC_AES::BLOCKSIZE);
BTC_AES_MODE<BTC_AES>::Encryption aes_enc( (byte*)key.getPtr(),
key.getSize(),
(byte*)iv.getPtr());
aes_enc.ProcessData( (byte*)encrData.getPtr(),
(byte*)data.getPtr(),
data.getSize());
//cout << " IV Data : " << iv.toHexStr() << endl;
//cout << " Ciphertext: " << encrData.toHexStr() << endl;
return encrData;
}
