PHP

ScMinidriver - PIN Authentication for Smart Card or USB Token

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Demonstrates how to PIN authenticate with a connected smart card or USB token. Chilkat2 PHP

<?php

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 = 'Alcor Micro USB Smart Card Reader 0';
try {
    $scmd->AcquireContext($readerName);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

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

// Perform regular PIN authentication with the smartcard.
// If authentication is successful, then the ScMinidriver session is authenticated and
// operations such as signing are permissible.

// The pin ID can be "user", "admin", or a number "3" through "7" (passed as a string).
// The possible pin ID's for a given smartcard are obtained via the GetCardProperties method.
// See Get Smart Card Properties for sample code.
// You should generally use the "user" pin ID.  You would only use the other pin ID's for very specific purposes.
$pinId = 'user';

// Change this to the PIN for your smart card.
$pin = '0000';

$retval = $scmd->PinAuthenticate($pinId, $pin);

// The return value is 0 for success.
// If the retval is greater than 0, it is the number of attempts remaining before the PIN is blocked.
// If the retval equals -1, then something else went wrong and you should consult the LastErrorText.
if ($retval < 0) {
    echo $scmd->LastErrorText, "\n";
    exit;
}

if ($retval > 0) {
    echo 'PIN authentcation failed, ', $retval, " attempts remaining before the PIN is blocked.\n";
} else {
    echo "PIN authentication successful. Your session is now authenticated and you may proceed with operations such as signing.\n";
}

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

// You may deauthenticate the session when finished with operations that required authentication.
try {
    $scmd->PinDeauthenticate($pinId);
} 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";
}