NAME

       CURLOPT_SSLCERT - 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 CURLOPT_SSLCERTTYPE(3).

       With  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\934a7ac6f8a5d579285a74fa". The
       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 CURLOPT_SSLCERTTYPE(3).

       When  using  a  client  certificate,  you  most  likely  also  need  to  provide  a  private   key   with
       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

       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

       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), CURLOPT_KEYPASSWD(3)

ibcurl 8.5.0                                    December 04, 2023                             CURLOPT_SSLCERT(3)