我需要显示有关序列号的SSL证书信息。当我使用时
$cert = file_get_contents('mycert.crt');
$data=openssl_x509_parse($cert,true);
$data['serialNumber']
我收到了-55731994852412205751但当我运行命令时openssl x509-在mycert.crt中-noout-串行我收到序列号=B2A80498A3CEDC09可以用PHP接收吗？谢谢
您可能正在接收作为字节数组的序列号。将这些字节转换为十六进制，您应该可以使用openssl获得您看到的序列号。
感谢Petery B，这个想法很有趣，所以请帮助我找到搜索方向。解决方案是：
$serial_number= strtoupper(dechex($serial_number));
php > $value = hexdec('B2A80498A3CEDC09');
php > echo dechex($value);
b2a80498a3cee000
这似乎不起作用。可能是由于浮点转换。
我看到了bcmath的一个解决方案。
这是来自困惑(http://www.assembla.com/code/confusa/git/nodes/lib/ca/Certificate.php?rev=a80a040c97fde2c170bb290d756c6729883fe80a)：
/*
* PHP will return the serial as an integer, whereas
* everybody else use the hex-represenatation of the
* number.
*
* Due to the fact that Comodo uses *insanely* large
* serial-numbers, we need to be a bit creative when we
* get the serial as PHP won't cope with numbers larger
* than MAX_INT (2**32 on 32 bits arch)
*/
$serial = $this->x509_parsed['serialNumber'] . "";
$base = bcpow("2", "32");
$counter = 100;
$res = "";
$val = $serial;
while($counter > 0 && $val > 0) {
$counter = $counter - 1;
$tmpres = dechex(bcmod($val, $base)) . "";
/* adjust for 0's */
for ($i = 8-strlen($tmpres); $i > 0; $i = $i-1) {
$tmpres = "0$tmpres";
}
$res = $tmpres .$res;
$val = bcdiv($val, $base);
}
if ($counter <= 0) {
return false;
}
return strtoupper($res);
我没有启用bcmath，所以目前无法测试。
您可以将phpseclib用于以下目的：
<?php
include('Math/BigInteger.php');
$cert_body = file_get_contents('mycert.crt');
$cert_decoded = openssl_x509_parse($cert_body, true);
echo $cert_decoded['serialNumber'] // outputs 5573199485241205751
$cert_serial = new Math_BigInteger($cert_decoded['serialNumber']);
$cert_serial = strtoupper($cert_serial->toHex());
echo $cert_serial // outputs B2A80498A3CEDC09
?>