(Unicode C) RSA Sign using Base64 Private Key

Signs a string using a non-encrypted RSA private key in base64 encoding. Returns the RSA signature as a base64 string.

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

void ChilkatSample(void)
    {
    HCkPrivateKeyW privKey;
    BOOL success;
    HCkStringBuilderW sbPem;
    HCkRsaW rsa;
    const wchar_t *strSigned;
    const wchar_t *strOriginal;

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

    privKey = CkPrivateKeyW_Create();

    sbPem = CkStringBuilderW_Create();
    CkStringBuilderW_AppendLine(sbPem,L"-----BEGIN RSA PRIVATE KEY-----",TRUE);
    CkStringBuilderW_AppendLine(sbPem,L"MIIC .... j5A==",TRUE);
    CkStringBuilderW_AppendLine(sbPem,L"-----END RSA PRIVATE KEY-----",TRUE);

    success = CkPrivateKeyW_LoadPem(privKey,CkStringBuilderW_getAsString(sbPem));
    if (success != TRUE) {
        wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey));
        CkPrivateKeyW_Dispose(privKey);
        CkStringBuilderW_Dispose(sbPem);
        return;
    }

    rsa = CkRsaW_Create();

    success = CkRsaW_ImportPrivateKeyObj(rsa,privKey);
    if (success != TRUE) {
        wprintf(L"%s\n",CkRsaW_lastErrorText(rsa));
        CkPrivateKeyW_Dispose(privKey);
        CkStringBuilderW_Dispose(sbPem);
        CkRsaW_Dispose(rsa);
        return;
    }

    CkRsaW_putEncodingMode(rsa,L"base64");
    strSigned = CkRsaW_openSslSignStringENC(rsa,L"12345678");
    wprintf(L"%s\n",strSigned);

    strOriginal = CkRsaW_openSslVerifyStringENC(rsa,strSigned);
    wprintf(L"%s\n",strOriginal);


    CkPrivateKeyW_Dispose(privKey);
    CkStringBuilderW_Dispose(sbPem);
    CkRsaW_Dispose(rsa);

    }