(PHP Extension) Find a Certificate by it's SHA-1 Thumbprint

Finds a certificate by it's SHA-1 hex thumbprint. Parts of this example are specific to Windows because it searches the Windows Current User certificate store.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$certStore = new CkCertStore();

$thumbprint = '12c1dd8015f3f03f7b1fa619dc24e2493ca8b4b2';

// This part of the example is specific to Windows because it is opening the Windows Current-User certificate store.
$bReadOnly = true;
$success = $certStore->OpenCurrentUserStore($bReadOnly);
if ($success != true) {
    print $certStore->lastErrorText() . "\n";
    exit;
}

// Find the certificate with the desired thumbprint
// cert is a CkCert
$cert = $certStore->FindCertBySha1Thumbprint($thumbprint);
if ($certStore->get_LastMethodSuccess() != true) {
    print 'Failed to find the certificate.' . "\n";
    exit;
}

print 'Found: ' . $cert->subjectCN() . "\n";

// -------------------------------------------------------------------------------------
// Alternatively, one could load a certificate store object with certs from a PEM file,
// and do the same thing..
$certStorePem = new CkCertStore();

$success = $certStorePem->LoadPemFile('pemFiles/certificates.pem');
if ($success != true) {
    print $certStorePem->lastErrorText() . "\n";
    exit;
}

// cert is a CkCert
$cert = $certStorePem->FindCertBySha1Thumbprint($thumbprint);
if ($certStorePem->get_LastMethodSuccess() != true) {
    print 'Failed to find the certificate.' . "\n";
    exit;
}

print 'Found: ' . $cert->subjectCN() . "\n";


?>