Perl

PKCS11 Find All Certificates on Smart Card or USB Token

See more PKCS11 Examples

Sample code showing how to examine all the certificates on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.88 or later.

Perl

use chilkat();

$success = 0;

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

# Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

$pkcs11 = chilkat::CkPkcs11->new();

# Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
# or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
$pkcs11->put_SharedLibPath("aetpkss1.dll");

$success = $pkcs11->Initialize();
if ($success == 0) {
    print $pkcs11->lastErrorText() . "\r\n";
    exit;
}

# Pass -1 for the slotID to open a session on the first non-empty slot.
$slotID = -1;

# Open a session.
$readWrite = 1;
$success = $pkcs11->OpenSession($slotID,$readWrite);
if ($success == 0) {
    print $pkcs11->lastErrorText() . "\r\n";
    exit;
}

# Make it an authenticated session by calling Login.
# 
# If we don't authenticate, then we won't be able to see the private keys, and thus
# we won't know which certificates have an associated private key stored on the smart card.

# The smart card PIN is passed to the Login method.
# userType 1 indicates a "Normal User".
$userType = 1;
$pin = "0000";
$success = $pkcs11->Login($userType,$pin);
if ($success == 0) {
    print $pkcs11->lastErrorText() . "\r\n";
    $success = $pkcs11->CloseSession();
    exit;
}

# Call FindAllCerts to find all certificates on the smart card or USB token.
$success = $pkcs11->FindAllCerts();
if ($success == 0) {
    print $pkcs11->lastErrorText() . "\r\n";
    $success = $pkcs11->CloseSession();
    exit;
}

# The NumCerts property is set by FindAllCerts.
$numCerts = $pkcs11->get_NumCerts();
print "Number of certs: " . $numCerts . "\r\n";

$cert = chilkat::CkCert->new();
$i = 0;
while ($i < $numCerts) {
    $pkcs11->GetCert($i,$cert);
    $privateKeyNote = "";
    if ($cert->HasPrivateKey() == 1) {
        $privateKeyNote = "(has private key)";
    }

    print $i . ": " . $privateKeyNote . " " . $cert->subjectDN() . "\r\n";
    print $i . ": issuer: " . $cert->issuerDN() . "\r\n";
    print "----" . "\r\n";
    $i = $i + 1;
}

# Revert to an unauthenticated session by calling Logout.
$success = $pkcs11->Logout();
if ($success == 0) {
    print $pkcs11->lastErrorText() . "\r\n";
    $success = $pkcs11->CloseSession();
    exit;
}

# When finished, close the session.
# It is important to close the session (memory leaks will occur if the session is not properly closed).
$success = $pkcs11->CloseSession();
if ($success == 0) {
    print $pkcs11->lastErrorText() . "\r\n";
    exit;
}

print "Success." . "\r\n";