(Unicode C) PKCS11 Import an Existing RSA Public Key onto the HSM

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Demonstrates how to import an existing RSA Public Key onto a smart card or token.

Note: This example requires Chilkat v9.5.0.96 or later.

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#include <C_CkPkcs11W.h>
#include <C_CkRsaW.h>
#include <C_CkXmlW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkPkcs11W pkcs11;
    const wchar_t *pin;
    int userType;
    BOOL success;
    HCkRsaW rsa;
    HCkXmlW xml;
    HCkJsonObjectW attrs;
    unsigned long objHandle;

    // 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 = CkPkcs11W_Create();

    // Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
    // (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
    CkPkcs11W_putSharedLibPath(pkcs11,L"C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll");

    // Establish a logged-on session.
    pin = L"0000";
    userType = 1;
    success = CkPkcs11W_QuickSession(pkcs11,userType,pin);
    if (success == FALSE) {
        wprintf(L"%s\n",CkPkcs11W_lastErrorText(pkcs11));
        CkPkcs11W_Dispose(pkcs11);
        return;
    }

    // Generate a new 2048-bit RSA key.
    rsa = CkRsaW_Create();
    success = CkRsaW_GenerateKey(rsa,2048);
    if (success == FALSE) {
        wprintf(L"%s\n",CkRsaW_lastErrorText(rsa));
        CkPkcs11W_Dispose(pkcs11);
        CkRsaW_Dispose(rsa);
        return;
    }

    // Get the public key information as XML, so we can access the modulus and exponent.
    xml = CkXmlW_Create();
    CkXmlW_LoadXml(xml,CkRsaW_exportPublicKey(rsa));

    attrs = CkJsonObjectW_Create();
    // Specify the type of object, and the type of key.
    CkJsonObjectW_UpdateString(attrs,L"class",L"CKO_PUBLIC_KEY");
    CkJsonObjectW_UpdateString(attrs,L"key_type",L"CKK_RSA");
    // Add an optional label if desired.
    CkJsonObjectW_UpdateString(attrs,L"label",L"RSA Public Key 1");
    // Allow the key to be use for verify, wrapping, and encryption operations.
    CkJsonObjectW_UpdateBool(attrs,L"verify",TRUE);
    CkJsonObjectW_UpdateBool(attrs,L"wrap",TRUE);
    CkJsonObjectW_UpdateBool(attrs,L"encrypt",TRUE);

    // Make this a session-only public key.
    // To store the public key on the token so that it persists after the PKCS11 session, set token = TRUE.
    CkJsonObjectW_UpdateBool(attrs,L"token",FALSE);

    // Provide the RSA public key material
    CkJsonObjectW_UpdateString(attrs,L"modulus",CkXmlW_getChildContent(xml,L"Modulus"));
    CkJsonObjectW_UpdateString(attrs,L"public_exponent",CkXmlW_getChildContent(xml,L"Exponent"));

    // Create the RSA public key.
    // Returns the PKCS11 object handle of the created key.
    objHandle = CkPkcs11W_CreatePkcs11Object(pkcs11,attrs);
    if (objHandle == 0) {
        wprintf(L"%s\n",CkPkcs11W_lastErrorText(pkcs11));
        wprintf(L"Failed.\n");
    }
    else {
        wprintf(L"PKCS11 object handle = %u\n",objHandle);
        wprintf(L"Successfully imported an RSA key..\n");
    }

    CkPkcs11W_Logout(pkcs11);
    CkPkcs11W_CloseSession(pkcs11);


    CkPkcs11W_Dispose(pkcs11);
    CkRsaW_Dispose(rsa);
    CkXmlW_Dispose(xml);
    CkJsonObjectW_Dispose(attrs);

    }