Tukukkk

I am trying to use Openssl and I am running into issues trying to initialize the X509 certificate to use and the key file. Below is my code but apparently the calls to SSL_CTX_use_PrivateKey_file() and SSL_CTX_use_certificate_file() fail. Below is my code. The 2 files are generated using openssl and have names cert.pem and key.pem respectively.
Can anyone please help me out as to why I am failing those 2 calls ? The SSL context is created fine i.e no error there. I am using OpenSSL 1.0.2g.

There was another issue on stackoverflow that referred to something similar and the fix was to add a call to SSL_library_init(); which I did but that does not seem to make a difference.

SSL_load_error_strings();

SSL_library_init();

OpenSSL_add_all_algorithms();



const SSL_METHOD *method;

method = SSLv23_server_method();



ctx = SSL_CTX_new(method);



if (!ctx) {

    syslog(LOG_INFO, "%s", "Could not generate SSL context!!");

    err = -1;

}



SSL_CTX_set_ecdh_auto(ctx, 1);



char hname[NI_MAXHOST];

gethostname(hname, NI_MAXHOST);



key_path += "/" + std::string(hname) + "/";



const std::string crt = key_path + "cert.pem";

const std::string key = key_path + "key.pem";



const char *ccrt = crt.c_str();

const char *ckey = key.c_str();



/* Set the key and cert */

if (SSL_CTX_use_certificate_file(ctx, ccrt, SSL_FILETYPE_PEM) <= 0) {

    syslog(LOG_INFO, "%s", "Could not use SSL certificate!!");

    err = -1;

}



if (SSL_CTX_use_PrivateKey_file(ctx, ckey, SSL_FILETYPE_PEM) <= 0 ) {

    syslog(LOG_INFO, "%s", "Could not use SSL Key!!");

    err = -1;

}

Commands to generate the cert and key files

  openssl genrsa -out key.pem 4096



  openssl req -new -x509 -days 365 -key key.pem -out cert.pem

Turns out the absolute path to the cert.pem and key.pem files was wrong.
When I added the right path, the function calls seem to work.