path: root/src/bn_c_impl.hpp

#define MCLBN_DLL_EXPORT
#include <mcl/bn.h>

#if MCLBN_FP_UNIT_SIZE == 4
#include <mcl/bn256.hpp>
#elif MCLBN_FP_UNIT_SIZE == 6
#include <mcl/bn384.hpp>
#elif MCLBN_FP_UNIT_SIZE == 8
#include <mcl/bn512.hpp>
#endif
#include <mcl/lagrange.hpp>
using namespace mcl::bn;

static Fr *cast(mclBnFr *p) { return reinterpret_cast<Fr*>(p); }
static const Fr *cast(const mclBnFr *p) { return reinterpret_cast<const Fr*>(p); }

static G1 *cast(mclBnG1 *p) { return reinterpret_cast<G1*>(p); }
static const G1 *cast(const mclBnG1 *p) { return reinterpret_cast<const G1*>(p); }

static G2 *cast(mclBnG2 *p) { return reinterpret_cast<G2*>(p); }
static const G2 *cast(const mclBnG2 *p) { return reinterpret_cast<const G2*>(p); }

static Fp12 *cast(mclBnGT *p) { return reinterpret_cast<Fp12*>(p); }
static const Fp12 *cast(const mclBnGT *p) { return reinterpret_cast<const Fp12*>(p); }

static Fp6 *cast(uint64_t *p) { return reinterpret_cast<Fp6*>(p); }
static const Fp6 *cast(const uint64_t *p) { return reinterpret_cast<const Fp6*>(p); }

template<class T>
int setStr(T *x, const char *buf, mclSize bufSize, int ioMode)
{
    size_t n = cast(x)->deserialize(buf, bufSize, ioMode);
    return n > 0 ? 0 : -1;
}

#ifdef __EMSCRIPTEN__
// use these functions forcibly
extern "C" MCLBN_DLL_API void *mclBnMalloc(size_t n)
{
    return malloc(n);
}
extern "C" MCLBN_DLL_API void mclBnFree(void *p)
{
    free(p);
}
#endif

int mclBn_init(int curve, int maxUnitSize)
{
    if (maxUnitSize != MCLBN_FP_UNIT_SIZE) {
        return -10;
    }
    const mcl::CurveParam& cp = mcl::getCurveParam(curve);
    bool b;
    initPairing(&b, cp);
    return b ? 0 : -1;
}

int mclBn_getOpUnitSize()
{
    return (int)Fp::getUnitSize() * sizeof(mcl::fp::Unit) / sizeof(uint64_t);
}

int mclBn_getG1ByteSize()
{
    return (int)Fp::getByteSize();
}

int mclBn_getFrByteSize()
{
    return (int)Fr::getByteSize();
}

mclSize mclBn_getCurveOrder(char *buf, mclSize maxBufSize)
{
    return Fr::getModulo(buf, maxBufSize);
}

mclSize mclBn_getFieldOrder(char *buf, mclSize maxBufSize)
{
    return Fp::getModulo(buf, maxBufSize);
}
////////////////////////////////////////////////
// set zero
void mclBnFr_clear(mclBnFr *x)
{
    cast(x)->clear();
}

// set x to y
void mclBnFr_setInt(mclBnFr *y, mclInt x)
{
    *cast(y) = x;
}
void mclBnFr_setInt32(mclBnFr *y, int x)
{
    *cast(y) = x;
}

int mclBnFr_setStr(mclBnFr *x, const char *buf, mclSize bufSize, int ioMode)
{
    return setStr(x, buf, bufSize, ioMode);
}
int mclBnFr_setLittleEndian(mclBnFr *x, const void *buf, mclSize bufSize)
{
    cast(x)->setArrayMask((const char *)buf, bufSize);
    return 0;
}
mclSize mclBnFr_deserialize(mclBnFr *x, const void *buf, mclSize bufSize)
{
    return (mclSize)cast(x)->deserialize(buf, bufSize);
}
// return 1 if true
int mclBnFr_isValid(const mclBnFr *x)
{
    return cast(x)->isValid();
}
int mclBnFr_isEqual(const mclBnFr *x, const mclBnFr *y)
{
    return *cast(x) == *cast(y);
}
int mclBnFr_isZero(const mclBnFr *x)
{
    return cast(x)->isZero();
}
int mclBnFr_isOne(const mclBnFr *x)
{
    return cast(x)->isOne();
}

int mclBnFr_setByCSPRNG(mclBnFr *x)
{
    cast(x)->setByCSPRNG();
    return 0;
}

// hash(buf) and set x
int mclBnFr_setHashOf(mclBnFr *x, const void *buf, mclSize bufSize)
{
    cast(x)->setHashOf(buf, bufSize);
    return 0;
}

mclSize mclBnFr_getStr(char *buf, mclSize maxBufSize, const mclBnFr *x, int ioMode)
{
    return cast(x)->getStr(buf, maxBufSize, ioMode);
}
mclSize mclBnFr_serialize(void *buf, mclSize maxBufSize, const mclBnFr *x)
{
    return (mclSize)cast(x)->serialize(buf, maxBufSize);
}

void mclBnFr_neg(mclBnFr *y, const mclBnFr *x)
{
    Fr::neg(*cast(y), *cast(x));
}
void mclBnFr_inv(mclBnFr *y, const mclBnFr *x)
{
    Fr::inv(*cast(y), *cast(x));
}
void mclBnFr_sqr(mclBnFr *y, const mclBnFr *x)
{
    Fr::sqr(*cast(y), *cast(x));
}
void mclBnFr_add(mclBnFr *z, const mclBnFr *x, const mclBnFr *y)
{
    Fr::add(*cast(z),*cast(x), *cast(y));
}
void mclBnFr_sub(mclBnFr *z, const mclBnFr *x, const mclBnFr *y)
{
    Fr::sub(*cast(z),*cast(x), *cast(y));
}
void mclBnFr_mul(mclBnFr *z, const mclBnFr *x, const mclBnFr *y)
{
    Fr::mul(*cast(z),*cast(x), *cast(y));
}
void mclBnFr_div(mclBnFr *z, const mclBnFr *x, const mclBnFr *y)
{
    Fr::div(*cast(z),*cast(x), *cast(y));
}

////////////////////////////////////////////////
// set zero
void mclBnG1_clear(mclBnG1 *x)
{
    cast(x)->clear();
}

int mclBnG1_setStr(mclBnG1 *x, const char *buf, mclSize bufSize, int ioMode)
{
    return setStr(x, buf, bufSize, ioMode);
}
mclSize mclBnG1_deserialize(mclBnG1 *x, const void *buf, mclSize bufSize)
{
    return (mclSize)cast(x)->deserialize(buf, bufSize);
}

// return 1 if true
int mclBnG1_isValid(const mclBnG1 *x)
{
    return cast(x)->isValid();
}
int mclBnG1_isEqual(const mclBnG1 *x, const mclBnG1 *y)
{
    return *cast(x) == *cast(y);
}
int mclBnG1_isZero(const mclBnG1 *x)
{
    return cast(x)->isZero();
}

int mclBnG1_hashAndMapTo(mclBnG1 *x, const void *buf, mclSize bufSize)
{
    hashAndMapToG1(*cast(x), buf, bufSize);
    return 0;
}

mclSize mclBnG1_getStr(char *buf, mclSize maxBufSize, const mclBnG1 *x, int ioMode)
{
    return cast(x)->getStr(buf, maxBufSize, ioMode);
}

mclSize mclBnG1_serialize(void *buf, mclSize maxBufSize, const mclBnG1 *x)
{
    return (mclSize)cast(x)->serialize(buf, maxBufSize);
}

void mclBnG1_neg(mclBnG1 *y, const mclBnG1 *x)
{
    G1::neg(*cast(y), *cast(x));
}
void mclBnG1_dbl(mclBnG1 *y, const mclBnG1 *x)
{
    G1::dbl(*cast(y), *cast(x));
}
void mclBnG1_normalize(mclBnG1 *y, const mclBnG1 *x)
{
    G1::normalize(*cast(y), *cast(x));
}
void mclBnG1_add(mclBnG1 *z, const mclBnG1 *x, const mclBnG1 *y)
{
    G1::add(*cast(z),*cast(x), *cast(y));
}
void mclBnG1_sub(mclBnG1 *z, const mclBnG1 *x, const mclBnG1 *y)
{
    G1::sub(*cast(z),*cast(x), *cast(y));
}
void mclBnG1_mul(mclBnG1 *z, const mclBnG1 *x, const mclBnFr *y)
{
    G1::mul(*cast(z),*cast(x), *cast(y));
}
void mclBnG1_mulCT(mclBnG1 *z, const mclBnG1 *x, const mclBnFr *y)
{
    G1::mulCT(*cast(z),*cast(x), *cast(y));
}

////////////////////////////////////////////////
// set zero
void mclBnG2_clear(mclBnG2 *x)
{
    cast(x)->clear();
}

int mclBnG2_setStr(mclBnG2 *x, const char *buf, mclSize bufSize, int ioMode)
{
    return setStr(x, buf, bufSize, ioMode);
}
mclSize mclBnG2_deserialize(mclBnG2 *x, const void *buf, mclSize bufSize)
{
    return (mclSize)cast(x)->deserialize(buf, bufSize);
}

// return 1 if true
int mclBnG2_isValid(const mclBnG2 *x)
{
    return cast(x)->isValid();
}
int mclBnG2_isEqual(const mclBnG2 *x, const mclBnG2 *y)
{
    return *cast(x) == *cast(y);
}
int mclBnG2_isZero(const mclBnG2 *x)
{
    return cast(x)->isZero();
}

int mclBnG2_hashAndMapTo(mclBnG2 *x, const void *buf, mclSize bufSize)
{
    hashAndMapToG2(*cast(x), buf, bufSize);
    return 0;
}

mclSize mclBnG2_getStr(char *buf, mclSize maxBufSize, const mclBnG2 *x, int ioMode)
{
    return cast(x)->getStr(buf, maxBufSize, ioMode);
}

mclSize mclBnG2_serialize(void *buf, mclSize maxBufSize, const mclBnG2 *x)
{
    return (mclSize)cast(x)->serialize(buf, maxBufSize);
}

void mclBnG2_neg(mclBnG2 *y, const mclBnG2 *x)
{
    G2::neg(*cast(y), *cast(x));
}
void mclBnG2_dbl(mclBnG2 *y, const mclBnG2 *x)
{
    G2::dbl(*cast(y), *cast(x));
}
void mclBnG2_normalize(mclBnG2 *y, const mclBnG2 *x)
{
    G2::normalize(*cast(y), *cast(x));
}
void mclBnG2_add(mclBnG2 *z, const mclBnG2 *x, const mclBnG2 *y)
{
    G2::add(*cast(z),*cast(x), *cast(y));
}
void mclBnG2_sub(mclBnG2 *z, const mclBnG2 *x, const mclBnG2 *y)
{
    G2::sub(*cast(z),*cast(x), *cast(y));
}
void mclBnG2_mul(mclBnG2 *z, const mclBnG2 *x, const mclBnFr *y)
{
    G2::mul(*cast(z),*cast(x), *cast(y));
}
void mclBnG2_mulCT(mclBnG2 *z, const mclBnG2 *x, const mclBnFr *y)
{
    G2::mulCT(*cast(z),*cast(x), *cast(y));
}

////////////////////////////////////////////////
// set zero
void mclBnGT_clear(mclBnGT *x)
{
    cast(x)->clear();
}
void mclBnGT_setInt(mclBnGT *y, mclInt x)
{
    cast(y)->clear();
    *(cast(y)->getFp0()) = x;
}
void mclBnGT_setInt32(mclBnGT *y, int x)
{
    cast(y)->clear();
    *(cast(y)->getFp0()) = x;
}

int mclBnGT_setStr(mclBnGT *x, const char *buf, mclSize bufSize, int ioMode)
{
    return setStr(x, buf, bufSize, ioMode);
}
mclSize mclBnGT_deserialize(mclBnGT *x, const void *buf, mclSize bufSize)
{
    return (mclSize)cast(x)->deserialize(buf, bufSize);
}

// return 1 if true
int mclBnGT_isEqual(const mclBnGT *x, const mclBnGT *y)
{
    return *cast(x) == *cast(y);
}
int mclBnGT_isZero(const mclBnGT *x)
{
    return cast(x)->isZero();
}
int mclBnGT_isOne(const mclBnGT *x)
{
    return cast(x)->isOne();
}

mclSize mclBnGT_getStr(char *buf, mclSize maxBufSize, const mclBnGT *x, int ioMode)
{
    return cast(x)->getStr(buf, maxBufSize, ioMode);
}

mclSize mclBnGT_serialize(void *buf, mclSize maxBufSize, const mclBnGT *x)
{
    return (mclSize)cast(x)->serialize(buf, maxBufSize);
}

void mclBnGT_neg(mclBnGT *y, const mclBnGT *x)
{
    Fp12::neg(*cast(y), *cast(x));
}
void mclBnGT_inv(mclBnGT *y, const mclBnGT *x)
{
    Fp12::inv(*cast(y), *cast(x));
}
void mclBnGT_sqr(mclBnGT *y, const mclBnGT *x)
{
    Fp12::sqr(*cast(y), *cast(x));
}
void mclBnGT_add(mclBnGT *z, const mclBnGT *x, const mclBnGT *y)
{
    Fp12::add(*cast(z),*cast(x), *cast(y));
}
void mclBnGT_sub(mclBnGT *z, const mclBnGT *x, const mclBnGT *y)
{
    Fp12::sub(*cast(z),*cast(x), *cast(y));
}
void mclBnGT_mul(mclBnGT *z, const mclBnGT *x, const mclBnGT *y)
{
    Fp12::mul(*cast(z),*cast(x), *cast(y));
}
void mclBnGT_div(mclBnGT *z, const mclBnGT *x, const mclBnGT *y)
{
    Fp12::div(*cast(z),*cast(x), *cast(y));
}

void mclBnGT_pow(mclBnGT *z, const mclBnGT *x, const mclBnFr *y)
{
    Fp12::pow(*cast(z), *cast(x), *cast(y));
}
void mclBnGT_powGeneric(mclBnGT *z, const mclBnGT *x, const mclBnFr *y)
{
    Fp12::powGeneric(*cast(z), *cast(x), *cast(y));
}

void mclBn_pairing(mclBnGT *z, const mclBnG1 *x, const mclBnG2 *y)
{
    pairing(*cast(z), *cast(x), *cast(y));
}
void mclBn_finalExp(mclBnGT *y, const mclBnGT *x)
{
    finalExp(*cast(y), *cast(x));
}
void mclBn_millerLoop(mclBnGT *z, const mclBnG1 *x, const mclBnG2 *y)
{
    millerLoop(*cast(z), *cast(x), *cast(y));
}
int mclBn_getUint64NumToPrecompute(void)
{
    return int(BN::param.precomputedQcoeffSize * sizeof(Fp6) / sizeof(uint64_t));
}

void mclBn_precomputeG2(uint64_t *Qbuf, const mclBnG2 *Q)
{
    precomputeG2(cast(Qbuf), *cast(Q));
}

void mclBn_precomputedMillerLoop(mclBnGT *f, const mclBnG1 *P, const uint64_t *Qbuf)
{
    precomputedMillerLoop(*cast(f), *cast(P), cast(Qbuf));
}

void mclBn_precomputedMillerLoop2(mclBnGT *f, const mclBnG1 *P1, const uint64_t  *Q1buf, const mclBnG1 *P2, const uint64_t *Q2buf)
{
    precomputedMillerLoop2(*cast(f), *cast(P1), cast(Q1buf), *cast(P2), cast(Q2buf));
}

int mclBn_FrLagrangeInterpolation(mclBnFr *out, const mclBnFr *xVec, const mclBnFr *yVec, mclSize k)
{
    bool b;
    mcl::LagrangeInterpolation(*cast(out), cast(xVec), cast(yVec), k, &b);
    return b ? 0 : -1;
}
int mclBn_G1LagrangeInterpolation(mclBnG1 *out, const mclBnFr *xVec, const mclBnG1 *yVec, mclSize k)
{
    bool b;
    mcl::LagrangeInterpolation(*cast(out), cast(xVec), cast(yVec), k, &b);
    return b ? 0 : -1;
}
int mclBn_G2LagrangeInterpolation(mclBnG2 *out, const mclBnFr *xVec, const mclBnG2 *yVec, mclSize k)
{
    bool b;
    mcl::LagrangeInterpolation(*cast(out), cast(xVec), cast(yVec), k, &b);
    return b ? 0 : -1;
}
int mclBn_FrEvaluatePolynomial(mclBnFr *out, const mclBnFr *cVec, mclSize cSize, const mclBnFr *x)
{
    bool b;
    mcl::evaluatePolynomial(*cast(out), cast(cVec), cSize, *cast(x), &b);
    return b ? 0 : -1;
}
int mclBn_G1EvaluatePolynomial(mclBnG1 *out, const mclBnG1 *cVec, mclSize cSize, const mclBnFr *x)
{
    bool b;
    mcl::evaluatePolynomial(*cast(out), cast(cVec), cSize, *cast(x), &b);
    return b ? 0 : -1;
}
int mclBn_G2EvaluatePolynomial(mclBnG2 *out, const mclBnG2 *cVec, mclSize cSize, const mclBnFr *x)
{
    bool b;
    mcl::evaluatePolynomial(*cast(out), cast(cVec), cSize, *cast(x), &b);
    return b ? 0 : -1;
}

void mclBn_verifyOrderG1(int doVerify)
{
    verifyOrderG1(doVerify != 0);
}

void mclBn_verifyOrderG2(int doVerify)
{
    verifyOrderG2(doVerify != 0);
}