(Unicode C) Generate an ECC Key

Demonstrates how to generate an ECC key.

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#include <C_CkGlobalW.h>
#include <C_CkPrngW.h>
#include <C_CkEccW.h>
#include <C_CkPrivateKeyW.h>

void ChilkatSample(void)
    {
    HCkGlobalW chilkatGlob;
    BOOL success;
    HCkPrngW fortuna;
    const wchar_t *entropy;
    HCkEccW ecc;
    HCkPrivateKeyW privKey;

    //  All Chilkat classes can be unlocked at once at the beginning of a program
    //  by calling UnlockBundle.  It requires a Bundle unlock code.
    chilkatGlob = CkGlobalW_Create();
    success = CkGlobalW_UnlockBundle(chilkatGlob,L"Anything for 30-day trial.");
    if (success != TRUE) {
        wprintf(L"%s\n",CkGlobalW_lastErrorText(chilkatGlob));
        CkGlobalW_Dispose(chilkatGlob);
        return;
    }

    //  Create a Fortuna PRNG and seed it with system entropy.
    //  This will be our source of random data for generating the ECC private key.
    fortuna = CkPrngW_Create();
    entropy = CkPrngW_getEntropy(fortuna,32,L"base64");
    success = CkPrngW_AddEntropy(fortuna,entropy,L"base64");

    ecc = CkEccW_Create();

    //  Generate a random ECC private key on the secp256r1 curve.
    //  Chilkat also supports other curves, such as secp384r1, secp521r1, and secp256k1.

    privKey = CkEccW_GenEccKey(ecc,L"secp256r1",fortuna);
    if (CkEccW_getLastMethodSuccess(ecc) != TRUE) {
        wprintf(L"%s\n",CkEccW_lastErrorText(ecc));
        CkGlobalW_Dispose(chilkatGlob);
        CkPrngW_Dispose(fortuna);
        CkEccW_Dispose(ecc);
        return;
    }

    wprintf(L"%s\n",CkPrivateKeyW_getXml(privKey));

    //  Save the private key to PKCS8 encrypted PEM
    //  (The private key can be saved in a variety of different formats. See the online reference documentation.)
    success = CkPrivateKeyW_SavePkcs8EncryptedPemFile(privKey,L"pemPassword",L"myPemFiles/eccKey123.pem");
    if (success != TRUE) {
        wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey));
    }

    CkPrivateKeyW_Dispose(privKey);

    wprintf(L"finished.\n");


    CkGlobalW_Dispose(chilkatGlob);
    CkPrngW_Dispose(fortuna);
    CkEccW_Dispose(ecc);

    }