(Unicode C) Generate RSA Key and return Base64 PKCS8 Private Key

Demonstrates how to generate a new 2048-bit RSA private key and returns the Base64 encoded PKCS8 representation of the private key.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat C/C++ Library Downloads
MS Visual C/C++ C++ Builder Linux C/C++ Alpine Linux C/C++	MacOS C/C++ iOS C/C++ Android C/C++ MinGW C/C++

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkRsaW rsa;
    HCkPrivateKeyW privKey;
    const wchar_t *privKeyPkcs8Base64;

    success = FALSE;

    rsa = CkRsaW_Create();

    // Generate a 2048-bit key.  Chilkat RSA supports
    // key sizes ranging from 512 bits to 8192 bits.
    privKey = CkPrivateKeyW_Create();
    success = CkRsaW_GenKey(rsa,2048,privKey);
    if (success == FALSE) {
        wprintf(L"%s\n",CkRsaW_lastErrorText(rsa));
        CkRsaW_Dispose(rsa);
        CkPrivateKeyW_Dispose(privKey);
        return;
    }

    // Get the private key in PKCS8 Base64 format
    privKeyPkcs8Base64 = CkPrivateKeyW_getPkcs8ENC(privKey,L"base64");

    // The key in base64 format will start similar to this:
    // MIIEvAIBADANBgkqhkiG9w0BA...
    wprintf(L"%s\n",privKeyPkcs8Base64);


    CkRsaW_Dispose(rsa);
    CkPrivateKeyW_Dispose(privKey);

    }