PHP

Binary Certificate Extension Data

See more Certificates Examples

Demonstrates how to binary certificate extension data by OID.

The GetExtensionBd method is added in Chilkat v9.5.0.96.

Chilkat2 PHP

<?php

use Chilkat2\BinData;
use Chilkat2\Cert;

$success = false;

$cert = new Cert();

try {
    $cert->LoadFromFile('qa_data/certs/testCert.cer');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

$bd = new BinData();

// The particular certificate in this test contains the following extensions

$oid = '1.2.250.1.71.1.2.5';
try {
    $cert->GetExtensionBd($oid, $bd);
    $success = true;
} catch (\Chilkat2\Exception $e) {
    $success = false;
}
if ($success) {
    echo $oid, ': ', $bd->GetEncoded('hex_lower'), "\n";
}

$oid = '1.2.250.1.71.1.2.2';
try {
    $cert->GetExtensionBd($oid, $bd);
    $success = true;
} catch (\Chilkat2\Exception $e) {
    $success = false;
}
if ($success) {
    echo $oid, ': ', $bd->GetEncoded('hex_lower'), "\n";
}

$oid = '1.2.250.1.71.1.2.3';
try {
    $cert->GetExtensionBd($oid, $bd);
    $success = true;
} catch (\Chilkat2\Exception $e) {
    $success = false;
}
if ($success) {
    echo $oid, ': ', $bd->GetEncoded('hex_lower'), "\n";
}

$oid = '1.2.250.1.71.1.2.7';
try {
    $cert->GetExtensionBd($oid, $bd);
    $success = true;
} catch (\Chilkat2\Exception $e) {
    $success = false;
}
if ($success) {
    echo $oid, ': ', $bd->GetEncoded('hex_lower'), "\n";
}

$oid = '1.2.250.1.71.4.2.5';
try {
    $cert->GetExtensionBd($oid, $bd);
    $success = true;
} catch (\Chilkat2\Exception $e) {
    $success = false;
}
if ($success) {
    echo $oid, ': ', $bd->GetEncoded('hex_lower'), "\n";
}

// Sample output:
// 1.2.250.1.71.1.2.5: 040180
// 1.2.250.1.71.1.2.2: 020100
// 1.2.250.1.71.1.2.3: 1315383032353030303030312f32393030303539313432
// 1.2.250.1.71.1.2.7: 02010a
// 1.2.250.1.71.4.2.5: 30060c04534d3236

// The above binary values are actually ASN.1
// You can get the ASN.1 decoed by calling GetExtensionAsXml to get it in XML format,
// and then you extract the values from the XML.

$oid = '1.2.250.1.71.1.2.5';
try {
    $strXml = $cert->GetExtensionAsXml($oid);
} catch (\Chilkat2\Exception $e) {
    $strXml = null;
}
if ($strXml !== null) {
    echo $oid, ': ', $strXml, "\n";
}

$oid = '1.2.250.1.71.1.2.2';
try {
    $strXml = $cert->GetExtensionAsXml($oid);
} catch (\Chilkat2\Exception $e) {
    $strXml = null;
}
if ($strXml !== null) {
    echo $oid, ': ', $strXml, "\n";
}

$oid = '1.2.250.1.71.1.2.3';
try {
    $strXml = $cert->GetExtensionAsXml($oid);
} catch (\Chilkat2\Exception $e) {
    $strXml = null;
}
if ($strXml !== null) {
    echo $oid, ': ', $strXml, "\n";
}

$oid = '1.2.250.1.71.1.2.7';
try {
    $strXml = $cert->GetExtensionAsXml($oid);
} catch (\Chilkat2\Exception $e) {
    $strXml = null;
}
if ($strXml !== null) {
    echo $oid, ': ', $strXml, "\n";
}

$oid = '1.2.250.1.71.4.2.5';
try {
    $strXml = $cert->GetExtensionAsXml($oid);
} catch (\Chilkat2\Exception $e) {
    $strXml = null;
}
if ($strXml !== null) {
    echo $oid, ': ', $strXml, "\n";
}

// Sample output:
// 1.2.250.1.71.1.2.5: <octets>gA==</octets>
// 1.2.250.1.71.1.2.2: <int>00</int>
// 1.2.250.1.71.1.2.3: <printable>8025000001/2900059142</printable>
// 1.2.250.1.71.1.2.7: <int>0A</int>
// 1.2.250.1.71.4.2.5: <sequence><utf8>SM26</utf8></sequence>

// "gA==" is the base64 encoded byte values
// "0A" is hex for decimal 10