Hi Everyone,
I created a 5 MB message and encrypted it. The message takes 3 seconds to
encrypt. I needed something around 200 ms, even if the encryption is weaker.
My code is below, should I be setting any flags when compiling the library
to make it fast ?
Got message str at: 05/11/2023 20:21:31.346
in encrypt aes
Encrypted at: 05/11/2023 20:21:33.027
message_bytes = encrypt_aes(message_bytes, key, iv);
cout << " Encrypted at: " << get_curr_datetime_str() << endl;
std::string encrypt_aes(std::string message, SecByteBlock key, SecByteBlock
iv) {
try {
cout <<" in encrypt aes " <<endl;
AlgorithmParameters params = MakeParameters(Name::FeedbackSize(), 1
/*8-bits*/)
(Name::IV(), ConstByteArrayParameter(iv));
CFB_Mode<AES>::Encryption e;
std::string cipher;
e.SetKey(key, key.size(), params);
StringSource ss(message, true, new StreamTransformationFilter(e, new
StringSink(cipher)));
cout << " returning cipher " << endl;
return cipher;
}
catch (CryptoPP::Exception e) {
std::cerr << e.what() << std::endl;
return "";
}
}
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