Generate RSA Public/Private Key Pair and Export to PEM

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

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MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

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C++ Builder Libraries

#include <CkRsa.h>
#include <CkPrivateKey.h>
#include <CkPublicKey.h>

void ChilkatSample(void)
    {
    CkRsa rsa;

    bool success;
    success = rsa.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        printf("RSA component unlock failed\n");
        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) {
        printf("%s\n",rsa.lastErrorText());
        return;
    }

    //  Keys are exported in XML format:
    const char * publicKeyXml;
    publicKeyXml = rsa.exportPublicKey();
    printf("%s\n",publicKeyXml);

    const char * privateKeyXml;
    privateKeyXml = rsa.exportPrivateKey();
    printf("%s\n",privateKeyXml);

    //  Save the private key in PEM format:
    CkPrivateKey privKey;
    privKey.LoadXml(privateKeyXml);
    privKey.SaveRsaPemFile("privateKey.pem");

    //  Save the public key in PEM format:
    CkPublicKey pubKey;
    pubKey.LoadXml(publicKeyXml);
    pubKey.SaveOpenSslPemFile("publicKey.pem");
    }