From d8848ee4a10166bdbff9596f6c3d5c57e0f2a7fc Mon Sep 17 00:00:00 2001
From: MITSUNARI Shigeo <herumi@nifty.com>
Date: Thu, 19 Apr 2018 08:25:04 +0900
Subject: BN:: is not necessary now

---
 src/bls.cpp   | 21 +++++++++------------
 src/bls_c.cpp | 14 +++++++-------
 2 files changed, 16 insertions(+), 19 deletions(-)

(limited to 'src')

diff --git a/src/bls.cpp b/src/bls.cpp
index 71bcb3b..5bfb744 100644
--- a/src/bls.cpp
+++ b/src/bls.cpp
@@ -31,7 +31,7 @@ static void HashAndMapToG1(G1& P, const std::string& m)
 {
 	Fp t;
 	t.setHashOf(m);
-	BN::mapToG1(P, t);
+	mapToG1(P, t);
 }
 
 template<class T, class G, class Vec>
@@ -172,10 +172,7 @@ void init(int curve, int maxUnitSize)
 	default:
 		throw cybozu::Exception("bls:init:bad curve") << curve;
 	}
-	BN::init(cp);
-	G1::setCompressedExpression();
-	G2::setCompressedExpression();
-	Fr::init(BN::param.r);
+	initPairing(cp);
 	assert(sizeof(Id) == sizeof(impl::Id));
 	assert(sizeof(SecretKey) == sizeof(impl::SecretKey));
 	assert(sizeof(PublicKey) == sizeof(impl::PublicKey));
@@ -187,11 +184,11 @@ void init(int curve, int maxUnitSize)
 			Fp2("13891744915211034074451795021214165905772212241412891944830863846330766296736", "7937318970632701341203597196594272556916396164729705624521405069090520231616")
 		);
 	} else {
-		BN::mapToG2(Q, 1);
+		mapToG2(Q, 1);
 	}
 	static std::vector<Fp6> Qcoeff;
 
-	BN::precomputeG2(Qcoeff, Q);
+	precomputeG2(Qcoeff, Q);
 	g_pQ = &Q;
 	g_pQcoeff = &Qcoeff;
 }
@@ -289,14 +286,14 @@ bool Signature::verify(const PublicKey& pub, const std::string& m) const
 	*/
 	Fp12 e;
 	std::vector<Fp6> Q2coeff;
-	BN::precomputeG2(Q2coeff, pub.getInner().sQ);
-	BN::precomputedMillerLoop2(e, getInner().sHm, getQcoeff(), -Hm, Q2coeff);
-	BN::finalExp(e, e);
+	precomputeG2(Q2coeff, pub.getInner().sQ);
+	precomputedMillerLoop2(e, getInner().sHm, getQcoeff(), -Hm, Q2coeff);
+	finalExp(e, e);
 	return e.isOne();
 #else
 	Fp12 e1, e2;
-	BN::pairing(e1, getInner().sHm, getQ()); // e(s Hm, Q)
-	BN::pairing(e2, Hm, pub.getInner().sQ); // e(Hm, sQ)
+	pairing(e1, getInner().sHm, getQ()); // e(s Hm, Q)
+	pairing(e2, Hm, pub.getInner().sQ); // e(Hm, sQ)
 	return e1 == e2;
 #endif
 }
diff --git a/src/bls_c.cpp b/src/bls_c.cpp
index 568a49d..2135a8a 100644
--- a/src/bls_c.cpp
+++ b/src/bls_c.cpp
@@ -29,8 +29,8 @@ int blsInitNotThreadSafe(int curve, int maxUnitSize)
 	try
 {
 	if (mclBn_init(curve, maxUnitSize) != 0) return -1;
-	BN::mapToG2(g_Q, 1);
-	BN::precomputeG2(g_Qcoeff, getQ());
+	mapToG2(g_Q, 1);
+	precomputeG2(g_Qcoeff, getQ());
 	return 0;
 } catch (std::exception&) {
 	return -1;
@@ -77,10 +77,10 @@ static inline const mclBnG2 *cast(const G2* x) { return (const mclBnG2*)x; }
 bool isEqualTwoPairings(const G1& P1, const Fp6* Q1coeff, const G1& P2, const G2& Q2)
 {
 	std::vector<Fp6> Q2coeff;
-	BN::precomputeG2(Q2coeff, Q2);
+	precomputeG2(Q2coeff, Q2);
 	Fp12 e;
-	BN::precomputedMillerLoop2(e, P1, Q1coeff, -P2, Q2coeff.data());
-	BN::finalExp(e, e);
+	precomputedMillerLoop2(e, P1, Q1coeff, -P2, Q2coeff.data());
+	finalExp(e, e);
 	return e.isOne();
 }
 
@@ -131,7 +131,7 @@ void blsGetPublicKey(blsPublicKey *pub, const blsSecretKey *sec)
 void blsSign(blsSignature *sig, const blsSecretKey *sec, const void *m, mclSize size)
 {
 	G1 Hm;
-	BN::hashAndMapToG1(Hm, m, size);
+	hashAndMapToG1(Hm, m, size);
 	mclBnG1_mulCT(&sig->v, cast(&Hm), &sec->v);
 }
 int blsSecretKeyShare(blsSecretKey *sec, const blsSecretKey* msk, mclSize k, const blsId *id)
@@ -169,7 +169,7 @@ int blsSignatureRecover(blsSignature *sig, const blsSignature *sigVec, const bls
 int blsVerify(const blsSignature *sig, const blsPublicKey *pub, const void *m, mclSize size)
 {
 	G1 Hm;
-	BN::hashAndMapToG1(Hm, m, size);
+	hashAndMapToG1(Hm, m, size);
 	/*
 		e(sHm, Q) = e(Hm, sQ)
 		e(sig, Q) = e(Hm, pub)
-- 
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