CURLOPT_SSL_EC_CURVES - key exchange curves
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_EC_CURVES, char *alg_list);
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)