Objective-C

PKCS11 Login / Logout

See more PKCS11 Examples

Sample code showing how to login and logout of a PKCS11 session. A session becomes authenticated when Login is called, and returns to the unauthenticated state when Logout is called. A smart card's PIN is passed to the Login method.

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

Objective-C

#import <CkoPkcs11.h>
#import <NSString.h>

BOOL success = NO;

// 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.

CkoPkcs11 *pkcs11 = [[CkoPkcs11 alloc] init];

// 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.SharedLibPath = @"aetpkss1.dll";

success = [pkcs11 Initialize];
if (success == NO) {
    NSLog(@"%@",pkcs11.LastErrorText);
    return;
}

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

// Open a session.
BOOL readWrite = YES;
success = [pkcs11 OpenSession: [NSNumber numberWithInt: slotID] readWrite: readWrite];
if (success == NO) {
    NSLog(@"%@",pkcs11.LastErrorText);
    return;
}

// Make it an authenticated session by calling Login.
// The smart card PIN is passed to the Login method.
// The user type can be one of three choices:
// 0 - Security Officer
// 1 - Normal User
// 2 - Context Specific.
// You'll likely always login as the Normal User.
int userType = 1;
NSString *pin = @"0000";
success = [pkcs11 Login: [NSNumber numberWithInt: userType] pin: pin];
if (success == NO) {
    NSLog(@"%@",pkcs11.LastErrorText);
    success = [pkcs11 CloseSession];
    return;
}

// Do what is needed with the authenticated session...
// ...
// ...

// Revert to an unauthenticated session by calling Logout.
success = [pkcs11 Logout];
if (success == NO) {
    NSLog(@"%@",pkcs11.LastErrorText);
    success = [pkcs11 CloseSession];
    return;
}

// 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 == NO) {
    NSLog(@"%@",pkcs11.LastErrorText);
    return;
}

NSLog(@"%@",@"PKCS11 Login and Logout successfully demonstrated.");