openssl_x509_read

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

openssl_x509_read — Parst ein X.509-Zertitifikat und gibt ein Objekt dafür zurück

Beschreibung

openssl_x509_read(OpenSSLCertificate|string $certificate): OpenSSLCertificate|false

Die Funktion openssl_x509_read() parst das in certificate übergebene Zertifikat und gibt ein OpenSSLCertificate-Objekt dafür zurück.

Parameter-Liste

certificate: X509-Zertifikat. Siehe Schlüssel/Zertifikat-Parameter für eine Liste gültiger Werte.

Rückgabewerte

Gibt im Erfolgsfall ein OpenSSLCertificate-Objekt zurück. Bei einem Fehler wird false zurückgegeben.

Changelog

Version	Beschreibung
8.0.0	Bei Erfolg gibt diese Funktion nun eine OpenSSLCertificate-Instanz zurück; vorher wurde eine Ressource vom Typ `OpenSSL X.509` zurückgegeben.
8.0.0	`certificate` akzeptiert nun eine OpenSSLCertificate-Instanz; vorher wurde eine Ressource vom Typ `OpenSSL X.509` akzeptiert.

add a note

User Contributed Notes 3 notes

down

marc theat nwd thedot mx ¶

13 years ago


To get the real timestamps as integer values for the validity daterange you can use as follows:

<?php
$data = openssl_x509_parse(file_get_contents('/path/to/cert.crt'));

$validFrom = date('Y-m-d H:i:s', $data['validFrom_time_t']);
$validTo ) date('Y-m-d H:i:s', $data['validTo_time_t']);

echo $validFrom . "\n";
echo $validTo . "\n";

?>

down

Anonymous ¶

21 years ago


After some tests I've been able to get some results this way ...



<?php



 $fp = fopen("/etc/httpd/conf/ssl/moncertif.crt", "r");

 $cert = fread($fp, 8192);

 fclose($fp);



echo "Read<br>";

echo openssl_x509_read($cert);

echo "<br>";

echo "*********************";

echo "<br>";

echo "Parse<br>";

print_r(openssl_x509_parse($cert));

/*

// or

print_r(openssl_x509_parse( openssl_x509_read($cert) ) );

*/



?>



enjoy

;)

down

anthony dot whitehead at rfv dot sfa dot se ¶

21 years ago


Short HOWTO for getting data out of a client certificate via an SSL enabled iPlanet (Netscape Enterprise or Sun ONE) web server.

The iPlanet server sets $_SERVER["CLIENT_CERT"] whenever a client authenticates with a certificate. This variable contains an encoded representation of the certificate presented by the client. This in itself is useless to scripts or applications, we need to extract the actual information from the encoding. It turns out that we are in luck, the encoding is NEARLY a standard PEM encoding which can be read by the openssl_x509_read() function. A standard PEM has a begin line, an end line and inbetween is a base64 encoding of the DER representation of the certificate. PEM requires that linefeeds be present every 64 characters, however this is already the case with our CLIENT_CERT variable. For some reason the iPlanet server neglects to attach the begin and end headers, all that is required to allow access to the certificate is replacing these headers. Here is a small code excerpt for doing just that and printing out the raw certificate data.

<?php
    $beginpem = "-----BEGIN CERTIFICATE-----\n";
    $endpem = "-----END CERTIFICATE-----\n";

    // Small function to print the data recursivly.
    function print_element($item, $key)
    {
        if( is_array( $item ) )
        {
            echo "$key is Array:\n";
            array_walk( $item, 'print_element' );
            echo "$key done\n";
        }
        else
            echo "$key = $item\n";
    }

    // Build the PEM string.
    $pemdata = $beginpem.$_SERVER["CLIENT_CERT"]."\n".$endpem;

    // Get a certificate resource from the PEM string.
    $cert = openssl_x509_read( $pemdata );

    // Parse the resource and print out the contents.
    $cert_data = openssl_x509_parse( $cert );
    array_walk( $cert_data, 'print_element' );

    // Free the resource
    openssl_x509_free( $cert );
?>

add a note