CURLOPT_SSLCERT(3)         curl_easy_setopt options         CURLOPT_SSLCERT(3)

NAME
       CURLOPT_SSLCERT - set SSL client certificate

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLCERT, char *cert);

DESCRIPTION
       Pass a pointer to a null-terminated string as parameter. The string
       should be the file name of your client certificate. The default format
       is "P12" on Secure Transport and "PEM" on other engines, and can be
       changed with _SSLCERTTYPE&section=3">CURLOPT_SSLCERTTYPE(3).

       With NSS or Secure Transport, this can also be the nickname of the
       certificate you wish to authenticate with as it is named in the
       security database. If you want to use a file from the current
       directory, please precede it with "./" prefix, in order to avoid
       confusion with a nickname.

       (Schannel only) Client certificates can be specified by a path
       expression to a certificate store. (You can import PFX to a store
       first). You can use "<store location>\<store name>\<thumbprint>" to
       refer to a certificate in the system certificates store, for example,
       "CurrentUser\MY\934a7ac6f8a5d579285a74fa61e19f23ddfe8d7a". Thumbprint
       is usually a SHA-1 hex string which you can see in certificate details.
       Following store locations are supported: CurrentUser, LocalMachine,
       CurrentService, Services, CurrentUserGroupPolicy,
       LocalMachineGroupPolicy, LocalMachineEnterprise.  Schannel also support
       P12 certificate file, with the string "P12" specified with
       _SSLCERTTYPE&section=3">CURLOPT_SSLCERTTYPE(3).

       When using a client certificate, you most likely also need to provide a
       private key with _SSLKEY&section=3">CURLOPT_SSLKEY(3).

       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 enabled, CURLE_UNKNOWN_OPTION if not, or
       CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO
       CURLOPT_SSLCERTTYPE(3), CURLOPT_SSLKEY(3),

libcurl 7.77.0                 November 4, 2020             CURLOPT_SSLCERT(3)