(Unicode C) Generate RSA Public/Private Key Pair and Export to PEM

Unicode C example code showing how to generate an RSA public/private key pair and export to PEM files.

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#include <C_CkRsaW.h>
#include <C_CkPrivateKeyW.h>
#include <C_CkPublicKeyW.h>

void ChilkatSample(void)
    {
    HCkRsaW rsa;
    BOOL success;
    const wchar_t *publicKeyXml;
    const wchar_t *privateKeyXml;
    HCkPrivateKeyW privKey;
    HCkPublicKeyW pubKey;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    rsa = CkRsaW_Create();

    // Generate a 1024-bit key.  Chilkat RSA supports
    // key sizes ranging from 512 bits to 4096 bits.
    success = CkRsaW_GenerateKey(rsa,1024);
    if (success != TRUE) {
        wprintf(L"%s\n",CkRsaW_lastErrorText(rsa));
        CkRsaW_Dispose(rsa);
        return;
    }

    // Keys are exported in XML format:
    publicKeyXml = CkRsaW_exportPublicKey(rsa);
    wprintf(L"%s\n",publicKeyXml);

    privateKeyXml = CkRsaW_exportPrivateKey(rsa);
    wprintf(L"%s\n",privateKeyXml);

    // Save the private key in PEM format:
    privKey = CkPrivateKeyW_Create();
    success = CkPrivateKeyW_LoadXml(privKey,privateKeyXml);
    success = CkPrivateKeyW_SavePemFile(privKey,L"privateKey.pem");

    // Save the public key in PEM format:
    pubKey = CkPublicKeyW_Create();
    success = CkPublicKeyW_LoadFromString(pubKey,publicKeyXml);
    success = CkPublicKeyW_SavePemFile(pubKey,FALSE,L"publicKey.pem");


    CkRsaW_Dispose(rsa);
    CkPrivateKeyW_Dispose(privKey);
    CkPublicKeyW_Dispose(pubKey);

    }