Provided by: libcurl4-doc_8.9.1-2ubuntu2.1_all bug

NAME

       CURLOPT_SSLKEY - private key file 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 filename
       of  your  private  key.  The  default  format  is  "PEM"   and   can   be   changed   with
       CURLOPT_SSLKEYTYPE(3).

       (Windows,  iOS  and  Mac OS X) This option is ignored by Secure Transport and Schannel SSL
       backends because they expect the private key to be already present  in  the  key-chain  or
       PKCS#12 file containing the certificate.

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

DEFAULT

       NULL

PROTOCOLS

       This functionality affects all TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.

       This  option  works  only  with the following TLS backends: OpenSSL, Schannel, mbedTLS and
       wolfSSL

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_KEYPASSWD, "s3cret");
           res = curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
       }

AVAILABILITY

       Added in curl 7.9.3

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_SSLKEYTYPE(3), CURLOPT_SSLKEY_BLOB(3)