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CURLOPT_SSLKEY(3)          curl_easy_setopt options          CURLOPT_SSLKEY(3)


NAME

       CURLOPT_SSLKEY - 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 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 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 7.83.1                  March 12, 2022               CURLOPT_SSLKEY(3)

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