NAME

       CURLOPT_SSLKEYTYPE - type of the private key file

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLKEYTYPE, char *type);

DESCRIPTION

       Pass  a pointer to a null-terminated string as parameter. The string should be the format of your private
       key. Supported formats are "PEM", "DER" and "ENG".

       The format "ENG" enables you to load the private key from a crypto engine. In this case CURLOPT_SSLKEY(3)
       is  used  as  an  identifier  passed  to  the  engine.  You  have  to  set   the   crypto   engine   with
       CURLOPT_SSLENGINE(3).  "DER" format key file currently does not work because of a bug in OpenSSL.

       The application does not have to keep the string around after setting this option.

DEFAULT

       "PEM"

PROTOCOLS

       All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           CURLcode res;
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
           curl_easy_setopt(curl, CURLOPT_SSLCERT, "client.pem");
           curl_easy_setopt(curl, CURLOPT_SSLKEY, "key.pem");
           curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, "PEM");
           curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "s3cret");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       If built TLS enabled.

RETURN VALUE

       Returns  CURLE_OK  if  TLS is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was
       insufficient heap space.

SEE ALSO

       CURLOPT_SSLCERT(3), CURLOPT_SSLKEY(3), CURLOPT_PROXY_SSLKEYTYPE(3)

ibcurl 8.5.0                                    December 04, 2023                          CURLOPT_SSLKEYTYPE(3)