PHP

ScMinidriver - Find and Load Certificate from Smart Card or USB Token

See more ScMinidriver Examples

Demonstrates how to find and load a specific certificate located on a smart card or USB token. Chilkat2 PHP

<?php

use Chilkat2\Cert;
use Chilkat2\ScMinidriver;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$scmd = new ScMinidriver();

// Reader names (smart card readers or USB tokens) can be discovered
// via List Readers or Find Smart Cards
$readerName = 'SCM Microsystems Inc. SCR33x USB Smart Card Reader 0';
try {
    $scmd->AcquireContext($readerName);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// If successful, the name of the currently inserted smart card is available:
echo 'Card name: ', $scmd->CardName, "\n";

// If desired, perform regular PIN authentication with the smartcard.
// For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
$retval = $scmd->PinAuthenticate('user', '000000');
if ($retval != 0) {
    echo "PIN Authentication failed.\n";
}

// You can find a cerficate using any of the following certificate parts:
// "subjectDN" -- The full distinguished name of the cert.
// "subjectDN_withTags" -- Same as above, but in a format that includes the subject part tags, such as the "CN=" in "CN=something"
// "subjectCN" -- The common name part (CN) of the certificate's subject.
// "serial" -- The certificate serial number.
// "serial:issuerCN" -- The certificate serial number + the issuer's common name, delimited with a colon char.
// These are the same certificate parts that can be retrieved by listing certificates on the smart card (or USB token).
// See List Certificates on Smart Card Example
$certPart = 'subjectCN';
$partValue = 'PIVKey E42D60A759D39147A26E0AF2FB1183C5';

// If the certificate is found, it is loaded into the cert object.
$cert = new Cert();
try {
    $scmd->FindCert($certPart, $partValue, $cert);
    echo "Successfully loaded the cert object from the smart card / USB token.\n";

    // Note: When successful, the cert object is internally linked to the ScMinidriver object's authenticated session.
    // The cert object can now be used to sign or do other cryptographic operations that occur on the smart card / USB token.
    // If your application calls PinDeauthenticate or DeleteContext, the cert will no longer be able to sign on the smart card
    // because the smart card ScMinidriver session will no longer be authenticated or deleted.
} catch (\Chilkat2\Exception $e) {
    echo "Failed to find the certificate.\n";
}

// ...
// ...
// ...

// When finished with operations that required authentication, you may if you wish, deauthenticate the session.
try {
    $scmd->PinDeauthenticate('user');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
}

// Delete the context when finished with the card.
try {
    $scmd->DeleteContext();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
}