PHP

ScMinidriver - Load Certificate from Smart Card or USB Token by Index

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Demonstrates how to load a certificate located on a smart card or USB token by key container index. 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";
}

$cert = new Cert();
// We can pass a specific key container index, or -1 to locate the 1st non-empty container containing a certificate and private key.
$keyContainerIndex = -1;
// keySpec can be "kex" or "sig" to indicate the key-exchange or signature position within the container.
// keySpec can also be "any" to accept either position, with preference given to the "sig" position if both are occupied.
$keySpec = 'any';
try {
    $scmd->GetCert($keyContainerIndex, $keySpec, $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 load 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";
}