2024-03-15 20:55:33 -06:00
|
|
|
.\" generated by cd2nroff 0.1 from CURLOPT_TLS13_CIPHERS.md
|
2024-06-01 14:49:19 -06:00
|
|
|
.TH CURLOPT_TLS13_CIPHERS 3 "2024-06-01" libcurl
|
2024-03-15 20:55:33 -06:00
|
|
|
.SH NAME
|
|
|
|
|
CURLOPT_TLS13_CIPHERS \- ciphers suites to use for TLS 1.3
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
.nf
|
|
|
|
|
#include <curl/curl.h>
|
|
|
|
|
|
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TLS13_CIPHERS, char *list);
|
|
|
|
|
.fi
|
|
|
|
|
.SH DESCRIPTION
|
|
|
|
|
Pass a char pointer, pointing to a null\-terminated string holding the list of
|
|
|
|
|
cipher suites to use for the TLS 1.3 connection. The list must be
|
|
|
|
|
syntactically correct, it consists of one or more cipher suite strings
|
|
|
|
|
separated by colons.
|
|
|
|
|
|
|
|
|
|
Find more details about cipher lists on this URL:
|
|
|
|
|
|
|
|
|
|
https://curl.se/docs/ssl\-ciphers.html
|
|
|
|
|
|
|
|
|
|
This option is currently used only when curl is built to use OpenSSL 1.1.1 or
|
|
|
|
|
later, or Schannel. If you are using a different SSL backend you can try
|
|
|
|
|
setting TLS 1.3 cipher suites by using the \fICURLOPT_SSL_CIPHER_LIST(3)\fP
|
|
|
|
|
option.
|
|
|
|
|
|
|
|
|
|
The application does not have to keep the string around after setting this
|
|
|
|
|
option.
|
|
|
|
|
.SH DEFAULT
|
|
|
|
|
NULL, use internal default
|
|
|
|
|
.SH PROTOCOLS
|
|
|
|
|
All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
|
2024-03-30 12:28:04 -06:00
|
|
|
|
|
|
|
|
This option works only with the following TLS backends:
|
2024-06-01 14:49:19 -06:00
|
|
|
OpenSSL and Schannel
|
2024-03-15 20:55:33 -06:00
|
|
|
.SH EXAMPLE
|
|
|
|
|
.nf
|
|
|
|
|
int main(void)
|
|
|
|
|
{
|
|
|
|
|
CURL *curl = curl_easy_init();
|
|
|
|
|
if(curl) {
|
|
|
|
|
CURLcode res;
|
|
|
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
|
|
|
|
|
curl_easy_setopt(curl, CURLOPT_TLS13_CIPHERS,
|
|
|
|
|
"TLS_CHACHA20_POLY1305_SHA256");
|
|
|
|
|
res = curl_easy_perform(curl);
|
|
|
|
|
curl_easy_cleanup(curl);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
.fi
|
|
|
|
|
.SH AVAILABILITY
|
|
|
|
|
Added in 7.61.0 for OpenSSL. Available when built with OpenSSL >= 1.1.1.
|
|
|
|
|
|
|
|
|
|
Added in 7.85.0 for Schannel.
|
|
|
|
|
.SH RETURN VALUE
|
|
|
|
|
Returns CURLE_OK if supported, CURLE_NOT_BUILT_IN otherwise.
|
|
|
|
|
.SH SEE ALSO
|
|
|
|
|
.BR CURLOPT_PROXY_SSLVERSION (3),
|
|
|
|
|
.BR CURLOPT_PROXY_SSL_CIPHER_LIST (3),
|
|
|
|
|
.BR CURLOPT_PROXY_TLS13_CIPHERS (3),
|
|
|
|
|
.BR CURLOPT_SSLVERSION (3),
|
|
|
|
|
.BR CURLOPT_SSL_CIPHER_LIST (3),
|
|
|
|
|
.BR CURLOPT_USE_SSL (3)
|
