public static function base58_encode($num)
 {
     self::debug('base58_encode: num: ' . $num);
     return bcmath_Utils::dec2base($num, 58, '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz');
 }
Ejemplo n.º 2
0
function BWWC__MATH_generate_bitcoin_address_from_mpk($master_public_key, $key_index)
{
    if (USE_EXT != 'GMP' && USE_EXT != 'BCMATH') {
        return false;
    }
    /*
    	if (USE_EXT == 'GMP')
    	{
    		$utils_class = 'gmp_Utils';
    		$fn_bchexdec = 'gmp_hexdec';
    		$fn_dec2base = 'gmp_dec2base';
    		$fn_base2dec = 'gmp_base2dec';
    	}
    	else if (USE_EXT == 'BCMATH')
    	{
    		$utils_class = 'bcmath_Utils';
    		$fn_bchexdec = 'bchexdec';
    		$fn_dec2base = 'dec2base';
    		$fn_base2dec = 'base2dec';
    	}
    	else
    		return false;
    */
    // create the ecc curve
    if (USE_EXT == 'GMP') {
        // GMP
        $_p = gmp_Utils::gmp_hexdec('0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F');
        $_r = gmp_Utils::gmp_hexdec('0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141');
        $_b = gmp_Utils::gmp_hexdec('0x0000000000000000000000000000000000000000000000000000000000000007');
        $_Gx = gmp_Utils::gmp_hexdec('0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798');
        $_Gy = gmp_Utils::gmp_hexdec('0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8');
    } else {
        // BCMATH
        $_p = bcmath_Utils::bchexdec('0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F');
        $_r = bcmath_Utils::bchexdec('0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141');
        $_b = bcmath_Utils::bchexdec('0x0000000000000000000000000000000000000000000000000000000000000007');
        $_Gx = bcmath_Utils::bchexdec('0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798');
        $_Gy = bcmath_Utils::bchexdec('0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8');
    }
    $curve = new CurveFp($_p, 0, $_b);
    $gen = new Point($curve, $_Gx, $_Gy, $_r);
    // prepare the input values
    if (USE_EXT == 'GMP') {
        // GMP
        $x = gmp_Utils::gmp_hexdec('0x' . substr($master_public_key, 0, 64));
        $y = gmp_Utils::gmp_hexdec('0x' . substr($master_public_key, 64, 64));
        $z = gmp_Utils::gmp_hexdec('0x' . hash('sha256', hash('sha256', $key_index . ':0:' . pack('H*', $master_public_key), TRUE)));
    } else {
        // BCMATH
        $x = bcmath_Utils::bchexdec('0x' . substr($master_public_key, 0, 64));
        $y = bcmath_Utils::bchexdec('0x' . substr($master_public_key, 64, 64));
        $z = bcmath_Utils::bchexdec('0x' . hash('sha256', hash('sha256', $key_index . ':0:' . pack('H*', $master_public_key), TRUE)));
    }
    // generate the new public key based off master and sequence points
    $pt = Point::add(new Point($curve, $x, $y), Point::mul($z, $gen));
    if (USE_EXT == 'GMP') {
        // GMP
        $keystr = "" . str_pad(gmp_Utils::gmp_dec2base($pt->getX(), 256), 32, "", STR_PAD_LEFT) . str_pad(gmp_Utils::gmp_dec2base($pt->getY(), 256), 32, "", STR_PAD_LEFT);
    } else {
        // BCMATH
        $keystr = "" . str_pad(bcmath_Utils::dec2base($pt->getX(), 256), 32, "", STR_PAD_LEFT) . str_pad(bcmath_Utils::dec2base($pt->getY(), 256), 32, "", STR_PAD_LEFT);
    }
    $vh160 = "" . hash('ripemd160', hash('sha256', $keystr, TRUE), TRUE);
    $addr = $vh160 . substr(hash('sha256', hash('sha256', $vh160, TRUE), TRUE), 0, 4);
    // base58 conversion
    $alphabet = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
    $encoded = '';
    if (USE_EXT == 'GMP') {
        // GMP
        $num = gmp_Utils::gmp_base2dec($addr, 256);
    } else {
        // BCMATH
        $num = bcmath_Utils::base2dec($addr, 256);
    }
    while (intval($num) >= 58) {
        $div = bcdiv($num, '58');
        $mod = bcmod($num, '58');
        $encoded = $alphabet[intval($mod)] . $encoded;
        $num = $div;
    }
    $encoded = $alphabet[intval($num)] . $encoded;
    $pad = '';
    $n = 0;
    while ($addr[$n++] == "") {
        $pad .= '1';
    }
    return $pad . $encoded;
}