(C++) PKCS11 Generate Secret Key (such as AES)

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Generates a symmetric secret key such as AES on the HSM.

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

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#include <CkPkcs11.h>
#include <CkJsonObject.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;

    // 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.
    pkcs11.put_SharedLibPath("C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll");

    // Establish a logged-on session.
    const char *pin = "0000";
    int userType = 1;
    bool success = pkcs11.QuickSession(userType,pin);
    if (success == false) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        return;
    }

    // Let's generate a 256-bit AES key on the token, which will exist for the duration of this session.
    // Symmetric keys, such as AES keys, are typically created (or imported) and used during a single session.

    // Other possible values for keyType are "AES XTS", "Blowfish", "Twofish", "ChaCha20", and others. 
    // In virtually all cases, you'll want to create an AES key.
    const char *keyType = "AES";

    // Specify attributes and abilities (how this key can be used) by providing a JSON template.
    CkJsonObject json;

    // The key can be extracted or wrapped.
    json.UpdateBool("extractable",true);

    // Allow the key to be used for encryption, decryption, wrapping other keys, and unwrapping other keys.
    json.UpdateBool("encrypt",true);
    json.UpdateBool("decrypt",true);
    json.UpdateBool("wrap",true);
    json.UpdateBool("unwrap",true);

    // Indicate a 256-bit AES key is to be generated by setting the value_len attribute equal to the key size in bytes.
    // (32 bytes * 8 bits/byte = 256 bits)
    json.UpdateInt("value_len",32);

    unsigned long keyHandle = pkcs11.GenSecretKey(keyType,json);
    if (keyHandle == 0) {
        std::cout << pkcs11.lastErrorText() << "\r\n";
        std::cout << "Failed to generate an AES key." << "\r\n";
    }
    else {
        std::cout << "key handle = " << keyHandle << "\r\n";
        std::cout << "Success." << "\r\n";
    }

    pkcs11.Logout();
    pkcs11.CloseSession();
    }