Provided by: libcurl4-doc_7.68.0-1ubuntu2.25_all bug

NAME

       CURLOPT_PROXY_TLS13_CIPHERS - ciphers suites for proxy TLS 1.3

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_TLS13_CIPHERS, char *list);

DESCRIPTION

       Pass  a char *, pointing to a zero terminated string holding the list of cipher suites to use for the TLS
       1.3 connection to a proxy. The list must be syntactically correct, it consists  of  one  or  more  cipher
       suite strings separated by colons.

       You'll find more details about cipher lists on this URL:

        https://curl.haxx.se/docs/ssl-ciphers.html

       This  option  is currently used only when curl is built to use OpenSSL 1.1.1 or later. If you are using a
       different   SSL   backend   you   can   try   setting   TLS   1.3   cipher   suites    by    using    the
       CURLOPT_PROXY_SSL_CIPHER_LIST option.

       The application does not have to keep the string around after setting this option.

DEFAULT

       NULL, use internal default

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_PROXY_TLS13_CIPHERS,
                          "TLS13-CHACHA20-POLY1305-SHA256");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY

       Added in 7.61.0.  Available when built with OpenSSL >= 1.1.1.

RETURN VALUE

       Returns CURLE_OK if supported, CURLE_NOT_BUILT_IN otherwise.

SEE ALSO

       CURLOPT_PROXY_SSL_CIPHER_LIST(3),         CURLOPT_PROXY_SSLVERSION(3),        CURLOPT_SSL_CIPHER_LIST(3),
       CURLOPT_TLS13_CIPHERS(3), CURLOPT_SSLVERSION(3),