(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 <C_CkPkcs11.h>
#include <C_CkCert.h>

void ChilkatSample(void)
    {
    HCkPkcs11 pkcs11;
    BOOL success;
    int slotID;
    BOOL readWrite;
    int userType;
    const char *pin;
    int numCerts;
    const char *privateKeyNote;
    HCkCert cert;
    int i;

    // 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 = CkPkcs11_Create();

    // 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)
    CkPkcs11_putSharedLibPath(pkcs11,"aetpkss1.dll");

    success = CkPkcs11_Initialize(pkcs11);
    if (success == FALSE) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        CkPkcs11_Dispose(pkcs11);
        return;
    }

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

    // Open a session.
    readWrite = TRUE;
    success = CkPkcs11_OpenSession(pkcs11,slotID,readWrite);
    if (success == FALSE) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        CkPkcs11_Dispose(pkcs11);
        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".
    userType = 1;
    pin = "0000";
    success = CkPkcs11_Login(pkcs11,userType,pin);
    if (success == FALSE) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        success = CkPkcs11_CloseSession(pkcs11);
        CkPkcs11_Dispose(pkcs11);
        return;
    }

    // Call FindAllCerts to find all certificates on the smart card or USB token.
    success = CkPkcs11_FindAllCerts(pkcs11);
    if (success == FALSE) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        success = CkPkcs11_CloseSession(pkcs11);
        CkPkcs11_Dispose(pkcs11);
        return;
    }

    // The NumCerts property is set by FindAllCerts.
    numCerts = CkPkcs11_getNumCerts(pkcs11);
    printf("Number of certs: %d\n",numCerts);

    cert = CkCert_Create();
    i = 0;
    while (i < numCerts) {
        CkPkcs11_GetCert(pkcs11,i,cert);
        privateKeyNote = "";
        if (CkCert_HasPrivateKey(cert) == TRUE) {
            privateKeyNote = "(has private key)";
        }

        printf("%d: %s %s\n",i,privateKeyNote,CkCert_subjectDN(cert));
        printf("%d: issuer: %s\n",i,CkCert_issuerDN(cert));
        printf("----\n");
        i = i + 1;
    }

    // Revert to an unauthenticated session by calling Logout.
    success = CkPkcs11_Logout(pkcs11);
    if (success == FALSE) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        success = CkPkcs11_CloseSession(pkcs11);
        CkPkcs11_Dispose(pkcs11);
        CkCert_Dispose(cert);
        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 = CkPkcs11_CloseSession(pkcs11);
    if (success == FALSE) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        CkPkcs11_Dispose(pkcs11);
        CkCert_Dispose(cert);
        return;
    }

    printf("Success.\n");


    CkPkcs11_Dispose(pkcs11);
    CkCert_Dispose(cert);

    }