vendor: use BLS-12_384 curve and update dependencies (#356)

1 files changed, 69 insertions, 0 deletions

diff --git a/vendor/github.com/dexon-foundation/mcl/sample/she_make_dlp_table.cpp b/vendor/github.com/dexon-foundation/mcl/sample/she_make_dlp_table.cpp
new file mode 100644
index 000000000..41f18e225
--- /dev/null
+++ b/vendor/github.com/dexon-foundation/mcl/sample/she_make_dlp_table.cpp
@@ -0,0 +1,69 @@
+/*
+	make she DLP table
+*/
+#include <mcl/she.hpp>
+#include <cybozu/option.hpp>
+#include <fstream>
+
+using namespace mcl::she;
+
+struct Param {
+	int curveType;
+	int hashBitSize;
+	int group;
+	std::string path;
+};
+
+template<class HashTable, class G>
+void makeTable(const Param& param, const char *groupStr, HashTable& hashTbl, const G& P)
+{
+	char baseName[32];
+	CYBOZU_SNPRINTF(baseName, sizeof(baseName), "she-dlp-%d-%d-%s.bin", param.curveType, param.hashBitSize, groupStr);
+	const std::string fileName = param.path + baseName;
+	printf("file=%s\n", fileName.c_str());
+	std::ofstream ofs(fileName.c_str(), std::ios::binary);
+
+	const size_t hashSize = 1u << param.hashBitSize;
+	hashTbl.init(P, hashSize);
+	hashTbl.save(ofs);
+}
+
+void run(const Param& param)
+{
+	SHE::init(mcl::getCurveParam(param.curveType));
+
+	switch (param.group) {
+	case 1:
+		makeTable(param, "g1", getHashTableG1(), SHE::P_);
+		break;
+	case 2:
+		makeTable(param, "g2", getHashTableG2(), SHE::Q_);
+		break;
+	case 3:
+		makeTable(param, "gt", getHashTableGT(), SHE::ePQ_);
+		break;
+	default:
+		throw cybozu::Exception("bad group") << param.group;
+	}
+}
+
+int main(int argc, char *argv[])
+	try
+{
+	cybozu::Option opt;
+	Param param;
+	opt.appendOpt(&param.curveType, 0, "ct", ": curveType(0:BN254, 1:BN381_1, 5:BLS12_381)");
+	opt.appendOpt(&param.hashBitSize, 20, "hb", ": hash bit size");
+	opt.appendOpt(&param.group, 3, "g", ": group(1:G1, 2:G2, 3:GT");
+	opt.appendOpt(&param.path, "./", "path", ": path to table");
+	opt.appendHelp("h");
+	if (opt.parse(argc, argv)) {
+		run(param);
+	} else {
+		opt.usage();
+		return 1;
+	}
+} catch (std::exception& e) {
+	printf("err %s\n", e.what());
+	return 1;
+}