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CURLOPT_SSLKEY(3)                   libcurl                  CURLOPT_SSLKEY(3)


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 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 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

       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),

ibcurl 8.1.2                    April 26, 2023               CURLOPT_SSLKEY(3)

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