Method selfTest

CLKeySearchDevice/CLKeySearchDevice.cpp:428–470

}

void CLKeySearchDevice::selfTest()
{
    uint64_t numPoints = (uint64_t)_points;
    std::vector<secp256k1::uint256> privateKeys;

    // Generate key pairs for k, k+1, k+2 ... k + <total points in parallel - 1>
    secp256k1::uint256 privKey = _start;

    privateKeys.push_back(_start);

    for(uint64_t i = 1; i < numPoints; i++) {
        privKey = privKey.add(_stride);
        privateKeys.push_back(privKey);
    }

    unsigned int *xBuf = new unsigned int[numPoints * 8];
    unsigned int *yBuf = new unsigned int[numPoints * 8];

    _clContext->copyDeviceToHost(_x, xBuf, sizeof(unsigned int) * 8 * numPoints);
    _clContext->copyDeviceToHost(_y, yBuf, sizeof(unsigned int) * 8 * numPoints);

    for(int index = 0; index < _points; index++) {
        secp256k1::uint256 privateKey = privateKeys[index];

        secp256k1::uint256 x = readBigInt(xBuf, index);
        secp256k1::uint256 y = readBigInt(yBuf, index);

        secp256k1::ecpoint p1(x, y);
        secp256k1::ecpoint p2 = secp256k1::multiplyPoint(privateKey, secp256k1::G());

        if(!secp256k1::pointExists(p1)) {
            throw std::string("Validation failed: invalid point");
        }

        if(!secp256k1::pointExists(p2)) {
            throw std::string("Validation failed: invalid point");
        }

        if(!(p1 == p2)) {
            throw std::string("Validation failed: points do not match");
        }
    }
}