(MFC) Generate RSA Public/Private Key

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

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkRsa.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkRsa rsa;

    // Generate a 1024-bit key.  Chilkat RSA supports
    // key sizes ranging from 512 bits to 4096 bits.
    // Note: Starting in Chilkat v9.5.0.49, RSA key sizes can be up to 8192 bits.
    // It takes a considerable amount of time and processing power to generate
    // an 8192-bit key.
    bool 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 = rsa.exportPublicKey();
    strOut.append(publicKey);
    strOut.append("\r\n");

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


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }