Generate RSA Public/Private Key Pair for Encryption (Key Exchange)

MFC example code showing how to generate an RSA public/private key pair for encrypting.

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// Needs #include <CkRsa.h>

    CkString strOut;

    CkRsa rsa;

    bool success;
    success = rsa.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        strOut.append("RSA component unlock failed\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Generate a 1024-bit key.  Chilkat RSA supports
    //  key sizes ranging from 512 bits to 4096 bits.
    success = rsa.GenerateKey(1024);
    if (success != true) {
        strOut.append(rsa.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Keys are exported in XML format:
    const char * publicKey;
    publicKey = rsa.exportPublicKey();
    strOut.append(publicKey);
    strOut.append("\r\n");

    const char * privateKey;
    privateKey = rsa.exportPrivateKey();
    strOut.append(privateKey);
    strOut.append("\r\n");



    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());