1 files changed, 320 insertions, 0 deletions
diff --git a/src/bls_c.cpp b/src/bls_c.cpp
new file mode 100644
index 0000000..959d788
--- /dev/null
+++ b/src/bls_c.cpp
@@ -0,0 +1,320 @@
+#include "bls/bls.hpp"
+#define BLS_DLL_EXPORT
+#include "bls/bls.h"
+#include <iostream>
+#include <sstream>
+#include <memory.h>
+#include <mcl/fp.hpp>
+
+template<class Inner, class Outer>
+int setStrT(Outer *p, const char *buf, size_t bufSize, int ioMode)
+	try
+{
+	((Inner*)p)->setStr(std::string(buf, bufSize), ioMode);
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err setStrT %s\n", e.what());
+	return -1;
+}
+
+size_t checkAndCopy(char *buf, size_t maxBufSize, const std::string& s)
+{
+	if (s.size() > maxBufSize + 1) {
+		return 0;
+	}
+	memcpy(buf, s.c_str(), s.size());
+	buf[s.size()] = '\0';
+	return s.size();
+}
+template<class Inner, class Outer>
+size_t getStrT(const Outer *p, char *buf, size_t maxBufSize, int ioMode)
+	try
+{
+	std::string s;
+	((const Inner*)p)->getStr(s, ioMode);
+	size_t terminate = 0;
+	if (ioMode == 0 || ioMode == bls::IoBin || ioMode == bls::IoDec || ioMode == bls::IoHex) {
+		terminate = 1; // for '\0'
+	}
+	if (s.size() > maxBufSize + terminate) {
+		return 0;
+	}
+	memcpy(buf, s.c_str(), s.size());
+	if (terminate) {
+		buf[s.size()] = '\0';
+	}
+	return s.size();
+} catch (std::exception&) {
+	return 0;
+}
+
+int blsInit(int curve, int maxUnitSize)
+	try
+{
+	bls::init(curve, maxUnitSize);
+	return 0;
+} catch (std::exception&) {
+	return -1;
+}
+size_t blsGetOpUnitSize()
+{
+	return bls::getOpUnitSize();
+}
+
+int blsGetCurveOrder(char *buf, size_t maxBufSize)
+	try
+{
+	std::string s;
+	bls::getCurveOrder(s);
+	return (int)checkAndCopy(buf, maxBufSize, s);
+} catch (std::exception&) {
+	return 0;
+}
+
+int blsGetFieldOrder(char *buf, size_t maxBufSize)
+	try
+{
+	std::string s;
+	bls::getFieldOrder(s);
+	return (int)checkAndCopy(buf, maxBufSize, s);
+} catch (std::exception&) {
+	return 0;
+}
+
+int blsIdIsEqual(const blsId *lhs, const blsId *rhs)
+{
+	return *(const bls::Id*)lhs == *(const bls::Id*)rhs ? 1 : 0;
+}
+int blsIdSetLittleEndian(blsId *id, const void *buf, size_t bufSize)
+{
+	((bls::Id*)id)->setLittleEndian(buf, bufSize);
+	return 0;
+}
+int blsIdSetDecStr(blsId *id, const char *buf, size_t bufSize)
+{
+	return setStrT<bls::Id, blsId>(id, buf, bufSize, 10);
+}
+int blsIdSetHexStr(blsId *id, const char *buf, size_t bufSize)
+{
+	return setStrT<bls::Id, blsId>(id, buf, bufSize, 16);
+}
+size_t blsIdGetLittleEndian(void *buf, size_t maxBufSize, const blsId *id)
+{
+	return getStrT<bls::Id, blsId>(id, (char *)buf, maxBufSize, bls::IoFixedByteSeq);
+}
+size_t blsIdGetDecStr(char *buf, size_t maxBufSize, const blsId *id)
+{
+	return getStrT<bls::Id, blsId>(id, buf, maxBufSize, 10);
+}
+size_t blsIdGetHexStr(char *buf, size_t maxBufSize, const blsId *id)
+{
+	return getStrT<bls::Id, blsId>(id, buf, maxBufSize, 16);
+}
+int blsSecretKeyIsEqual(const blsSecretKey *lhs, const blsSecretKey *rhs)
+{
+	return *(const bls::SecretKey*)lhs == *(const bls::SecretKey*)rhs ? 1 : 0;
+}
+int blsSecretKeySetLittleEndian(blsSecretKey *sec, const void *buf, size_t bufSize)
+{
+	((bls::SecretKey*)sec)->setLittleEndian(buf, bufSize);
+	return 0;
+}
+int blsSecretKeySetDecStr(blsSecretKey *sec, const char *buf, size_t bufSize)
+{
+	return setStrT<bls::SecretKey, blsSecretKey>(sec, buf, bufSize, 10);
+}
+int blsSecretKeySetHexStr(blsSecretKey *sec, const char *buf, size_t bufSize)
+{
+	return setStrT<bls::SecretKey, blsSecretKey>(sec, buf, bufSize, 16);
+}
+size_t blsSecretKeyGetLittleEndian(void *buf, size_t maxBufSize, const blsSecretKey *sec)
+{
+	return getStrT<bls::SecretKey, blsSecretKey>(sec, (char *)buf, maxBufSize, bls::IoFixedByteSeq);
+}
+size_t blsSecretKeyGetDecStr(char *buf, size_t maxBufSize, const blsSecretKey *sec)
+{
+	return getStrT<bls::SecretKey, blsSecretKey>(sec, buf, maxBufSize, 10);
+}
+size_t blsSecretKeyGetHexStr(char *buf, size_t maxBufSize, const blsSecretKey *sec)
+{
+	return getStrT<bls::SecretKey, blsSecretKey>(sec, buf, maxBufSize, 16);
+}
+
+int blsHashToSecretKey(blsSecretKey *sec, const void *buf, size_t bufSize)
+	try
+{
+	((bls::SecretKey*)sec)->setHashOf(buf, bufSize);
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsHashToSecretKey %s\n", e.what());
+	return -1;
+}
+
+int blsSecretKeySetByCSPRNG(blsSecretKey *sec)
+	try
+{
+	((bls::SecretKey*)sec)->init();
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsSecretKeySetByCSPRNG %s\n", e.what());
+	return -1;
+}
+void blsSecretKeyAdd(blsSecretKey *sec, const blsSecretKey *rhs)
+{
+	((bls::SecretKey*)sec)->add(*(const bls::SecretKey*)rhs);
+}
+
+void blsGetPublicKey(blsPublicKey *pub, const blsSecretKey *sec)
+{
+	((const bls::SecretKey*)sec)->getPublicKey(*(bls::PublicKey*)pub);
+}
+void blsSign(blsSignature *sig, const blsSecretKey *sec, const char *m, size_t size)
+{
+	((const bls::SecretKey*)sec)->sign(*(bls::Signature*)sig, std::string(m, size));
+}
+int blsSecretKeyShare(blsSecretKey *sec, const blsSecretKey* msk, size_t k, const blsId *id)
+	try
+{
+	((bls::SecretKey*)sec)->set((const bls::SecretKey *)msk, k, *(const bls::Id*)id);
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsSecretKeyShare %s\n", e.what());
+	return -1;
+}
+
+int blsSecretKeyRecover(blsSecretKey *sec, const blsSecretKey *secVec, const blsId *idVec, size_t n)
+	try
+{
+	((bls::SecretKey*)sec)->recover((const bls::SecretKey *)secVec, (const bls::Id *)idVec, n);
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsSecretKeyRecover %s\n", e.what());
+	return -1;
+}
+
+void blsGetPop(blsSignature *sig, const blsSecretKey *sec)
+{
+	((const bls::SecretKey*)sec)->getPop(*(bls::Signature*)sig);
+}
+
+int blsPublicKeyIsEqual(const blsPublicKey *lhs, const blsPublicKey *rhs)
+{
+	return *(const bls::PublicKey*)lhs == *(const bls::PublicKey*)rhs ? 1 : 0;
+}
+int blsPublicKeyDeserialize(blsPublicKey *pub, const void *buf, size_t bufSize)
+{
+	return setStrT<bls::PublicKey, blsPublicKey>(pub, (const char*)buf, bufSize, bls::IoFixedByteSeq);
+}
+size_t blsPublicKeySerialize(void *buf, size_t maxBufSize, const blsPublicKey *pub)
+{
+	return getStrT<bls::PublicKey, blsPublicKey>(pub, (char *)buf, maxBufSize, bls::IoFixedByteSeq);
+}
+int blsPublicKeySetHexStr(blsPublicKey *pub, const char *buf, size_t bufSize)
+	try
+{
+	std::string s = mcl::fp::hexStrToLittleEndian(buf, bufSize);
+	return blsPublicKeyDeserialize(pub, s.c_str(), s.size());
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsPublicKeySetHexStr %s\n", e.what());
+	return -1;
+}
+size_t blsPublicKeyGetHexStr(char *buf, size_t maxBufSize, const blsPublicKey *pub)
+{
+	std::string s;
+	s.resize(1024);
+	size_t len = blsPublicKeySerialize(&s[0], s.size(), pub);
+	if (len > 0) {
+		s.resize(len);
+		s = mcl::fp::littleEndianToHexStr(s.c_str(), s.size());
+		if (s.size() < maxBufSize) {
+			memcpy(buf, s.c_str(), s.size());
+			buf[s.size()] = '\0';
+			return s.size();
+		}
+	}
+	return 0;
+}
+void blsPublicKeyAdd(blsPublicKey *pub, const blsPublicKey *rhs)
+{
+	((bls::PublicKey*)pub)->add(*(const bls::PublicKey*)rhs);
+}
+int blsPublicKeyShare(blsPublicKey *pub, const blsPublicKey *mpk, size_t k, const blsId *id)
+	try
+{
+	((bls::PublicKey*)pub)->set((const bls::PublicKey*)mpk, k, *(const bls::Id*)id);
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsPublicKeyShare %s\n", e.what());
+	return -1;
+}
+int blsPublicKeyRecover(blsPublicKey *pub, const blsPublicKey *pubVec, const blsId *idVec, size_t n)
+	try
+{
+	((bls::PublicKey*)pub)->recover((const bls::PublicKey*)pubVec, (const bls::Id*)idVec, n);
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsPublicKeyRecover %s\n", e.what());
+	return -1;
+}
+
+int blsSignatureIsEqual(const blsSignature *lhs, const blsSignature *rhs)
+{
+	return *(const bls::Signature*)lhs == *(const bls::Signature*)rhs ? 1 : 0;
+}
+int blsSignatureDeserialize(blsSignature *sig, const void *buf, size_t bufSize)
+{
+	return setStrT<bls::Signature, blsSignature>(sig, (const char *)buf, bufSize, bls::IoFixedByteSeq);
+}
+int blsSignatureSetHexStr(blsSignature *sig, const char *buf, size_t bufSize)
+	try
+{
+	std::string s = mcl::fp::hexStrToLittleEndian(buf, bufSize);
+	return blsSignatureDeserialize(sig, s.c_str(), s.size());
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsSignatureSetHexStr %s\n", e.what());
+	return -1;
+}
+size_t blsSignatureGetHexStr(char *buf, size_t maxBufSize, const blsSignature *sig)
+{
+	std::string s;
+	s.resize(1024);
+	size_t len = blsSignatureSerialize(&s[0], s.size(), sig);
+	if (len > 0) {
+		s.resize(len);
+		s = mcl::fp::littleEndianToHexStr(s.c_str(), s.size());
+		if (s.size() < maxBufSize) {
+			memcpy(buf, s.c_str(), s.size());
+			buf[s.size()] = '\0';
+			return s.size();
+		}
+	}
+	return 0;
+}
+size_t blsSignatureSerialize(void *buf, size_t maxBufSize, const blsSignature *sig)
+{
+	return getStrT<bls::Signature, blsSignature>(sig, (char *)buf, maxBufSize, bls::IoFixedByteSeq);
+}
+void blsSignatureAdd(blsSignature *sig, const blsSignature *rhs)
+{
+	((bls::Signature*)sig)->add(*(const bls::Signature*)rhs);
+}
+int blsSignatureRecover(blsSignature *sig, const blsSignature *sigVec, const blsId *idVec, size_t n)
+	try
+{
+	((bls::Signature*)sig)->recover((const bls::Signature*)sigVec, (const bls::Id*)idVec, n);
+	return 0;
+} catch (std::exception& e) {
+	fprintf(stderr, "err blsSignatureRecover %s\n", e.what());
+	return -1;
+}
+
+int blsVerify(const blsSignature *sig, const blsPublicKey *pub, const char *m, size_t size)
+{
+	return ((const bls::Signature*)sig)->verify(*(const bls::PublicKey*)pub, std::string(m, size));
+}
+
+int blsVerifyPop(const blsSignature *sig, const blsPublicKey *pub)
+{
+	return ((const bls::Signature*)sig)->verify(*(const bls::PublicKey*)pub);
+}
+