1) How can I re-use a StringSource object created for a pipeline?
2) Is it possible to hold back on the generation of the hash so I can add
more information to be hashed? Or I should concatenate my input message
before hand?
#include <iostream>
#include "cryptopp/keccak.h"
#include "cryptopp/hex.h"
int main(int argc, char* argv[]) {
try {
// Hash with sha3 and a non-standard digest
CryptoPP::Keccak hash = CryptoPP::Keccak(16);
std::string message = " A message ";
std::cout<<"Input message: " << message << std::endl;
std::string output;
// Pipeline
CryptoPP::StringSource ss1(message, true,
new CryptoPP::HashFilter( hash ,
new CryptoPP::HexEncoder(
new CryptoPP::StringSink( output ))));
std::cout<<"Output message: " << output << std::endl;
}
catch(const CryptoPP::Exception& ex) {
std::cerr <<ex.what() <<std::endl;
}
return 0;
}
Can I create this ss1 object and reuse multiple times?
Thank you in advance!
Nico
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