mirror of
https://github.com/moparisthebest/mailiverse
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97 lines
2.2 KiB
C++
97 lines
2.2 KiB
C++
/*
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* (C) 2009 Jack Lloyd
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*
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* Distributed under the terms of the Botan license
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*/
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <vector>
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#include <map>
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#include <memory>
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#include <botan/botan.h>
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#include <botan/dsa.h>
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#include <botan/pubkey.h>
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using namespace Botan;
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bool check(std::map<std::string, std::string>);
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int main()
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{
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try {
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Botan::LibraryInitializer init;
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std::ifstream in("SigGen.rsp");
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if(!in)
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throw Exception("Can't open response file");
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std::map<std::string, std::string> inputs;
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while(in.good())
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{
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std::string line;
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std::getline(in, line);
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if(line == "" || line[0] == '[' || line[0] == '#')
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continue;
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std::vector<std::string> name_and_val = split_on(line, '=');
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if(name_and_val.size() != 2)
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throw Decoding_Error("Unexpected input: " + line);
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name_and_val[0].erase(name_and_val[0].size()-1);
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name_and_val[1].erase(0, 1);
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std::string name = name_and_val[0], value = name_and_val[1];
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inputs[name] = value;
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if(name == "S")
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{
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bool result = check(inputs);
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if(result == false)
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{
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std::cout << " Check failed\n";
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std::map<std::string, std::string>::const_iterator i;
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for(i = inputs.begin(); i != inputs.end(); i++)
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std::cout << i->first << " = " << i->second << "\n";
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}
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inputs["Msg"] = inputs["R"] = inputs["S"] = "";
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}
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}
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}
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catch(std::exception& e)
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{
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std::cout << e.what() << std::endl;
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return 1;
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}
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return 0;
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}
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bool check(std::map<std::string, std::string> inputs)
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{
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BigInt p("0x"+inputs["P"]),
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q("0x"+inputs["Q"]),
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g("0x"+inputs["G"]),
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y("0x"+inputs["Y"]);
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DSA_PublicKey key(DL_Group(p, q, g), y);
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Pipe pipe(new Hex_Decoder);
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pipe.process_msg(inputs["Msg"]);
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pipe.start_msg();
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pipe.write(inputs["R"]);
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pipe.write(inputs["S"] );
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pipe.end_msg();
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PK_Verifier verifier(key, "EMSA1(SHA-1)");
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return verifier.verify_message(pipe.read_all(0), pipe.read_all(1));
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}
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