From 258b63c48768471452293e021b1c3dafef5e6a31 Mon Sep 17 00:00:00 2001
From: MITSUNARI Shigeo <herumi@nifty.com>
Date: Tue, 30 Jun 2020 14:22:16 +0900
Subject: [PATCH] change mode of hashAndMapToG1

---
 include/mcl/bn.hpp       | 5 +++++
 test/mapto_wb19_test.cpp | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/include/mcl/bn.hpp b/include/mcl/bn.hpp
index 657c8fa..61886d0 100644
--- a/include/mcl/bn.hpp
+++ b/include/mcl/bn.hpp
@@ -2056,6 +2056,11 @@ inline void mapToG2(G2& P, const Fp2& x, bool fast = false)
 #endif
 inline void hashAndMapToG1(G1& P, const void *buf, size_t bufSize)
 {
+	int mode = getMapToMode();
+	if (mode == MCL_MAP_TO_MODE_HASH_TO_CURVE_07) {
+		BN::param.mapTo.mapTo_WB19_.msgToG1(P, buf, bufSize);
+		return;
+	}
 	Fp t;
 	t.setHashOf(buf, bufSize);
 	bool b;
diff --git a/test/mapto_wb19_test.cpp b/test/mapto_wb19_test.cpp
index 5b3e547..80a9663 100644
--- a/test/mapto_wb19_test.cpp
+++ b/test/mapto_wb19_test.cpp
@@ -1160,6 +1160,11 @@ void testMsgToG1(const T& mapto)
 		Q.z = 1;
 		CYBOZU_TEST_EQUAL(P, Q);
 CYBOZU_BENCH_C("msgToG1", 1000, mapto.msgToG1, P, msg, msgSize, dst, dstSize);
+		if (i == 0) { // correct dst
+			P.clear();
+			bn::hashAndMapToG1(P, msg, msgSize);
+			CYBOZU_TEST_EQUAL(P, Q);
+		}
 	}
 }