(C++) PKCS11 Find All Certificates on Smart Card or USB Token

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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.

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#include <CkPkcs11.h>
#include <CkCert.h>

void ChilkatSample(void)
    {
    // 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.

    CkPkcs11 pkcs11;

    // 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");

    bool success = pkcs11.Initialize();
    if (success == false) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        return;
    }

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

    // Open a session.
    bool readWrite = true;
    success = pkcs11.OpenSession(slotID,readWrite);
    if (success == false) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        return;
    }

    // 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".
    int userType = 1;
    const char *pin = "0000";
    success = pkcs11.Login(userType,pin);
    if (success == false) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        success = pkcs11.CloseSession();
        return;
    }

    // Call FindAllCerts to find all certificates on the smart card or USB token.
    success = pkcs11.FindAllCerts();
    if (success == false) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        success = pkcs11.CloseSession();
        return;
    }

    // The NumCerts property is set by FindAllCerts.
    int numCerts = pkcs11.get_NumCerts();
    std::cout << "Number of certs: " << numCerts << "\r\n";

    const char *privateKeyNote = 0;
    CkCert cert;
    int i = 0;
    while (i < numCerts) {
        pkcs11.GetCert(i,cert);
        privateKeyNote = "";
        if (cert.HasPrivateKey() == true) {
            privateKeyNote = "(has private key)";
        }

        std::cout << i << ": " << privateKeyNote << " " << cert.subjectDN() << "\r\n";
        std::cout << i << ": issuer: " << cert.issuerDN() << "\r\n";
        std::cout << "----" << "\r\n";
        i = i + 1;
    }

    // Revert to an unauthenticated session by calling Logout.
    success = pkcs11.Logout();
    if (success == false) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        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 == false) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Success." << "\r\n";
    }