橢圓曲線密碼術PHP：可捕獲的致命錯誤參數1傳遞給__construct（）

Question

我正在嘗試使用Matyas Danter的phpecc庫（可在1中使用）使用橢圓曲線密碼術。 但是，當我創建變量Alice時，出現以下錯誤，盡管傳遞的參數是Point ..請幫助..

可捕獲的致命錯誤：傳遞給EcDH :: __ construct（）的參數1必須是Point的實例，給定字符串，在第31行的C：\\ xampp \\ htdocs \\ ECC-example.php中調用並在C：\\ xampp \\ htdocs中定義第39行的\\ classes \\ EcDH.php

         include 'autoload.inc.php';
         include 'classes/EcDH.php';
         include 'classes/PHPECC.class.php';
         include 'classes/SECurve.class.php';
         $keypair = PHPECC::hex_keypair_genorate();

         $g = NISTcurve::generator_192();
         echo $g;
         $Alice = new EcDH(g);

..........................................

NISTcurve.php具有以下功能：

         public static function generator_192() {
         // NIST Curve P-192:
        if (extension_loaded('gmp') && USE_EXT == 'GMP') {
        $_p = '6277101735386680763835789423207666416083908700390324961279';
        $_r = '6277101735386680763835789423176059013767194773182842284081';
        $_b = gmp_Utils::gmp_hexdec('0x64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1');
        $_Gx = gmp_Utils::gmp_hexdec('0x188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012');
        $_Gy = gmp_Utils::gmp_hexdec('0x07192b95ffc8da78631011ed6b24cdd573f977a11e794811');

        $curve_192 = new CurveFp($_p, -3, $_b);
        $generator_192 = new Point($curve_192, $_Gx, $_Gy, $_r);
    } else if (extension_loaded('bcmath') && USE_EXT == 'BCMATH') {
        $_p = '6277101735386680763835789423207666416083908700390324961279';
        $_r = '6277101735386680763835789423176059013767194773182842284081';
        $_b = bcmath_Utils::bchexdec('0x64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1');
        $_Gx = bcmath_Utils::bchexdec('0x188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012');
        $_Gy = bcmath_Utils::bchexdec('0x07192b95ffc8da78631011ed6b24cdd573f977a11e794811');

        $curve_192 = new CurveFp($_p, -3, $_b);
        $generator_192 = new Point($curve_192, $_Gx, $_Gy, $_r);
    }
    return $generator_192;
}

Answer 1

錯誤在最后一行

$ Alice =新的EcDH（g）->錯誤

$ Alice =新的EcDH（$ g）->正確

一個愚蠢的錯誤，導致了巨大的錯誤。