Base64 Encode/Decode a String

MFC example to base-64 encode and decode a string.

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// Needs #include <CkCrypt2.h>

    CkString strOut;

    CkCrypt2 crypt;

    //  Any string argument automatically begins the 30-day trial.
    bool success;
    success = crypt.UnlockComponent("30-day trial");
    if (success != true) {
        strOut.append(crypt.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    const char * s;
    s = "A friend called me up the other day and talked about investing in a dot-com that sells lobsters. Internet lobsters. Where will this end? --Donald Trump";

    //  Indicate that no encryption should be performed,
    //  only encoding/decoding.
    crypt.put_CryptAlgorithm("none");
    crypt.put_EncodingMode("base64");

    //  Other possible EncodingMode settings are:
    //  "quoted-printable", "hex", "uu", "base32", and "url"

    const char * strBase64;
    strBase64 = crypt.encryptStringENC(s);

    strOut.append(strBase64);
    strOut.append("\r\n");

    const char * decoded;
    decoded = crypt.decryptStringENC(strBase64);

    strOut.append(decoded);
    strOut.append("\r\n");

    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());