#include #include #include #include #include #include #include #include #include using namespace Botan; bool check(std::map); int main() { try { Botan::LibraryInitializer init; std::ifstream in("SigGen.rsp"); if(!in) throw Exception("Can't open response file"); std::map inputs; while(in.good()) { std::string line; std::getline(in, line); if(line == "" || line[0] == '[' || line[0] == '#') continue; std::vector name_and_val = split_on(line, '='); if(name_and_val.size() != 2) throw Decoding_Error("Unexpected input: " + line); name_and_val[0].erase(name_and_val[0].size()-1); name_and_val[1].erase(0, 1); std::string name = name_and_val[0], value = name_and_val[1]; inputs[name] = value; if(name == "S") { bool result = check(inputs); if(result == false) { std::cout << " Check failed\n"; std::map::const_iterator i; for(i = inputs.begin(); i != inputs.end(); i++) std::cout << i->first << " = " << i->second << "\n"; } inputs["Msg"] = inputs["R"] = inputs["S"] = ""; } } } catch(std::exception& e) { std::cout << e.what() << std::endl; return 1; } return 0; } bool check(std::map inputs) { BigInt p("0x"+inputs["P"]), q("0x"+inputs["Q"]), g("0x"+inputs["G"]), y("0x"+inputs["Y"]); DSA_PublicKey key(DL_Group(p, q, g), y); Pipe pipe(new Hex_Decoder); pipe.process_msg(inputs["Msg"]); pipe.start_msg(); pipe.write(inputs["R"]); pipe.write(inputs["S"] ); pipe.end_msg(); std::auto_ptr verify(get_pk_verifier(key, "EMSA1(SHA-1)")); return verify->verify_message(pipe.read_all(0), pipe.read_all(1)); }