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Updated: Wednesday, July 27, 2022
 
 

CURLOPT_SSL_EC_CURVES (3)

Name

CURLOPT_SSL_EC_CURVES - key exchange curves

Synopsis

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_EC_CURVES, char *alg_list);

Description

CURLOPT_SSL_EC_CURVES(3)   curl_easy_setopt options   CURLOPT_SSL_EC_CURVES(3)



NAME
       CURLOPT_SSL_EC_CURVES - key exchange curves

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_EC_CURVES, char *alg_list);

DESCRIPTION
       Pass  a  string  as parameter with a colon delimited list of (EC) algo-
       rithms. This option defines the client's key exchange algorithms in the
       SSL handshake (if the SSL backend libcurl is built to use supports it).

DEFAULT
       "", embedded in SSL backend

PROTOCOLS
       HTTP

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
         curl_easy_setopt(curl, CURLOPT_SSL_EC_CURVES, "X25519:P-521");
         ret = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in 7.73.0. Supported by the OpenSSL backend.

RETURN VALUE
       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
       if not.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | web/curl         |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+

SEE ALSO
       CURLOPT_SSL_OPTIONS(3),        CURLOPT_SSL_CIPHER_LIST(3),         CUR-
       LOPT_TLS13_CIPHERS(3),



NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source       was       downloaded      from       https://curl.se/down-
       load/curl-7.83.1.tar.bz2.

       Further information about this software can be found on the open source
       community website at http://curl.haxx.se/.



libcurl 7.83.1                 November 26, 2021      CURLOPT_SSL_EC_CURVES(3)