Perl

(PKCS11) Use a Smart Card Certificate + Private Key for SSL/TLS Authentication

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Demonstrates how to use a certificate + private key located on a smart card for the TLS client certificate in an HTTPS request. 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("C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.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;
}

$cert = chilkat::CkCert->new();

# Find a certificate by the Subject Common Name
$success = $pkcs11->FindCert("subjectCN","BadSSL Client Certificate",$cert);
if ($success == 1) {
    print "Found: " . $cert->subjectCN() . "\r\n";
}
else {
    print "Not found: " . $cert->subjectCN() . "\r\n";
    $success = $pkcs11->CloseSession();
    exit;
}

print "Successfully loaded the cert object from the smart card / USB token." . "\r\n";

# Note: When successful, the cert object is internally linked to the Pkcs11 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.

# ------------------------------------------------------------------------------------------------------------

# Send an HTTPS request to https://client.badssl.com
# https://client.badssl.com (part of the badssl.com service) lets you test authentication using client SSL certificates. 
# The client certificate can be downloaded from https://badssl.com/download/.
# This server returns 200 OK if the correct client certificate is provided, and 400 Bad Request otherwise.

$http = chilkat::CkHttp->new();

# Provide the client certificate (linked internally to our authenticated smartcard session)
$success = $http->SetSslClientCert($cert);
if ($success == 0) {
    print $http->lastErrorText() . "\r\n";
    $success = $pkcs11->CloseSession();
    exit;
}

$responseBody = $http->quickGetStr("https://client.badssl.com/");
if ($http->get_LastMethodSuccess() == 0) {
    print $http->lastErrorText() . "\r\n";
    $success = $pkcs11->CloseSession();
    exit;
}

print "Response status code: " . $http->get_LastStatus() . "\r\n";
print "Response body: " . "\r\n";
print $responseBody . "\r\n";

# ------------------------------------------------------------------------------------------------------------
# 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";