Unicode C++

Duplicate openssl pkey -in private.pem -pubout -out pubkey.pem

See more OpenSSL Examples

How to output the public part of a private key: Demonstrates how to duplicate this OpenSSL command:

openssl pkey -in private.pem -pubout -out pubkey.pem

Unicode C++

#include <CkPrivateKeyW.h>
#include <CkPublicKeyW.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkPrivateKeyW pkey;

    // Load the private key from an PEM file:
    success = pkey.LoadPemFile(L"private.pem");
    if (success == false) {
        wprintf(L"%s\n",pkey.lastErrorText());
        return;
    }

    CkPublicKeyW pubKey;
    pkey.ToPublicKey(pubKey);

    success = pubKey.SavePemFile(false,L"pubKey.pem");
    if (success != true) {
        wprintf(L"%s\n",pubKey.lastErrorText());
        delete pubKey;
        return;
    }

    wprintf(L"Success.\n");
    }