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(PHP Extension) ScMinidriver - PIN Authentication for Smart Card or USB TokenSee more ScMinidriver ExamplesDemonstrates how to PIN authenticate with a connected smart card or USB token.
<?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"); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $scmd = new CkScMinidriver(); // 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'; $success = $scmd->AcquireContext($readerName); if ($success == false) { print $scmd->lastErrorText() . "\n"; exit; } // If we are successful, the name of the currently inserted smart card is available: $cardName = $scmd->cardName(); print '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) { print $scmd->lastErrorText() . "\n"; exit; } if ($retval > 0) { print 'PIN authentcation failed, ' . $retval . ' attempts remaining before the PIN is blocked.' . "\n"; } else { print '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. $success = $scmd->PinDeauthenticate($pinId); if ($success == false) { print $scmd->lastErrorText() . "\n"; } // Delete the context when finished with the card. $success = $scmd->DeleteContext(); if ($success == false) { print $scmd->lastErrorText() . "\n"; } ?> |
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