Hi Jeff, The new library is much faster, but I am still not getting that speed in the code. 1 second to encrypt 5 mb versus 3 seconds before.
*I added the .reserve(...) code also.* Start at: 05/12/2023 14:46:39.358 Start Encrypted at: 05/12/2023 14:46:39.607 in encrypt aes returning cipher Encrypted at: 05/12/2023 14:46:40.626 string bkey1 = "cX/8AascXHJz6Anr02GHZg=="; string biv2 = "WdHMzK+OrQOTjxZ8cAXQ6g=="; std::pair<SecByteBlock,SecByteBlock> akeys = load_aes_key_from_b64_str(bkey1, biv2); cout << " Start at: " << get_curr_datetime_str() << endl; const int num_bytes = 5000003; std::random_device rd; std::mt19937 gen(rd()); std::uniform_int_distribution<int> dist(0,255); std::string random_string; random_string.reserve(num_bytes); for(int i=0; i<num_bytes; i++){ random_string += static_cast<char>(dist(gen)); } cout << " Start Encrypted at: " << get_curr_datetime_str() << endl; string message_bytes = encrypt_aes(random_string, akeys.first, akeys.second ); 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; cipher.reserve(message.size()+16); 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 ""; } } On Friday, May 12, 2023 at 10:40:10 AM UTC-4 Jeffrey Walton wrote: > On Fri, May 12, 2023 at 10:27 AM Dwight Kulkarni <dwi...@realtime-7.com> > wrote: > > > > These are the results from CryptoPP 8.7 vs 8.1 earlier: > > [...] > > <TR><TD>AES/CFB (128-bit key)<TD>ARMv8<TD>344<TD>4.99<TD>1.135<TD>2044 > > [...] > > 5 MB / 344 MB/s = 0.01453 s = 14/53 ms. That is below 200 ms. > > Jeff > -- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to cryptopp-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cryptopp-users/61cf4a2f-56b3-4328-903f-96015e6441e6n%40googlegroups.com.