CURLOPT_SSLCERT - SSL client certificate
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLCERT, char *cert);
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 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\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.
NULL
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
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);
}
If built TLS enabled.
Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.
CURLOPT_SSLCERTTYPE(3),
CURLOPT_SSLKEY(3),