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

See more PKCS11 Examples

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.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <C_CkPkcs11.h>
#include <C_CkRsa.h>
#include <C_CkXml.h>
#include <C_CkJsonObject.h>

void ChilkatSample(void)
    {
    HCkPkcs11 pkcs11;
    const char *pin;
    int userType;
    BOOL success;
    HCkRsa rsa;
    HCkXml xml;
    HCkJsonObject 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 = CkPkcs11_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.
    CkPkcs11_putSharedLibPath(pkcs11,"C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll");

    // Establish a logged-on session.
    pin = "0000";
    userType = 1;
    success = CkPkcs11_QuickSession(pkcs11,userType,pin);
    if (success == FALSE) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        CkPkcs11_Dispose(pkcs11);
        return;
    }

    // Generate a new 2048-bit RSA key.
    rsa = CkRsa_Create();
    success = CkRsa_GenerateKey(rsa,2048);
    if (success == FALSE) {
        printf("%s\n",CkRsa_lastErrorText(rsa));
        CkPkcs11_Dispose(pkcs11);
        CkRsa_Dispose(rsa);
        return;
    }

    // Get the public key information as XML, so we can access the modulus and exponent.
    xml = CkXml_Create();
    CkXml_LoadXml(xml,CkRsa_exportPublicKey(rsa));

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

    // Provide the RSA public key material
    CkJsonObject_UpdateString(attrs,"modulus",CkXml_getChildContent(xml,"Modulus"));
    CkJsonObject_UpdateString(attrs,"public_exponent",CkXml_getChildContent(xml,"Exponent"));

    // Create the RSA public key.
    // Returns the PKCS11 object handle of the created key.
    objHandle = CkPkcs11_CreatePkcs11Object(pkcs11,attrs);
    if (objHandle == 0) {
        printf("%s\n",CkPkcs11_lastErrorText(pkcs11));
        printf("Failed.\n");
    }
    else {
        printf("PKCS11 object handle = %u\n",objHandle);
        printf("Successfully imported an RSA key..\n");
    }

    CkPkcs11_Logout(pkcs11);
    CkPkcs11_CloseSession(pkcs11);


    CkPkcs11_Dispose(pkcs11);
    CkRsa_Dispose(rsa);
    CkXml_Dispose(xml);
    CkJsonObject_Dispose(attrs);

    }