CURLOPT_SSLKEY(3)          curl_easy_setopt options          CURLOPT_SSLKEY(3)

NAME
       CURLOPT_SSLKEY - specify private keyfile for TLS and SSL client cert

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLKEY, char *keyfile);

DESCRIPTION
       Pass a pointer to a null-terminated string as parameter. The string
       should be the file name of your private key. The default format is
       "PEM" and can be changed with _SSLKEYTYPE&section=3">CURLOPT_SSLKEYTYPE(3).

       (iOS and Mac OS X only) This option is ignored if curl was built
       against Secure Transport. Secure Transport expects the private key to
       be already present in the keychain or PKCS#12 file containing the
       certificate.

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

DEFAULT
       NULL

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

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         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_KEYPASSWD, "s3cret");
         ret = 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_SSLKEYTYPE(3), CURLOPT_SSLCERT(3),

libcurl 7.77.0                 November 4, 2020              CURLOPT_SSLKEY(3)