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69 lines
1.6 KiB
69 lines
1.6 KiB
/*
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make she DLP table
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*/
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#include <mcl/she.hpp>
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#include <cybozu/option.hpp>
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#include <fstream>
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using namespace mcl::she;
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struct Param {
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int curveType;
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int hashBitSize;
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int group;
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std::string path;
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};
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template<class HashTable, class G>
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void makeTable(const Param& param, const char *groupStr, HashTable& hashTbl, const G& P)
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{
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char baseName[32];
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CYBOZU_SNPRINTF(baseName, sizeof(baseName), "she-dlp-%d-%d-%s.bin", param.curveType, param.hashBitSize, groupStr);
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const std::string fileName = param.path + baseName;
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printf("file=%s\n", fileName.c_str());
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std::ofstream ofs(fileName.c_str(), std::ios::binary);
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const size_t hashSize = 1u << param.hashBitSize;
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hashTbl.init(P, hashSize);
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hashTbl.save(ofs);
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}
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void run(const Param& param)
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{
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SHE::init(*mcl::getCurveParam(param.curveType));
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switch (param.group) {
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case 1:
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makeTable(param, "g1", getHashTableG1(), SHE::P_);
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break;
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case 2:
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makeTable(param, "g2", getHashTableG2(), SHE::Q_);
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break;
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case 3:
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makeTable(param, "gt", getHashTableGT(), SHE::ePQ_);
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break;
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default:
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throw cybozu::Exception("bad group") << param.group;
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}
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}
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int main(int argc, char *argv[])
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try
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{
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cybozu::Option opt;
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Param param;
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opt.appendOpt(¶m.curveType, 0, "ct", ": curveType(0:BN254, 1:BN381_1, 5:BLS12_381)");
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opt.appendOpt(¶m.hashBitSize, 20, "hb", ": hash bit size");
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opt.appendOpt(¶m.group, 3, "g", ": group(1:G1, 2:G2, 3:GT");
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opt.appendOpt(¶m.path, "./", "path", ": path to table");
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opt.appendHelp("h");
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if (opt.parse(argc, argv)) {
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run(param);
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} else {
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opt.usage();
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return 1;
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}
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} catch (std::exception& e) {
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printf("err %s\n", e.what());
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return 1;
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}
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