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CURLOPT_SSL_CIPHER_LIST(3) curl_easy_setopt options CURLOPT_SSL_CIPHER_LIST(3)

NAME
       CURLOPT_SSL_CIPHER_LIST - specify ciphers to use	for TLS

SYNOPSIS
       #include	<curl/curl.h>

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

DESCRIPTION
       Pass a char *, pointing to a zero terminated string holding the list of
       ciphers	to  use	for the	SSL connection.	The list must be syntactically
       correct,	it consists of one or more cipher strings separated by colons.
       Commas or spaces	are also acceptable separators but colons are normally
       used, !,	- and +	can be used as operators.

       For  OpenSSL  and  GnuTLS  valid	 examples  of  cipher  lists   include
       'RC4-SHA',  'SHA1+DES', 'TLSv1' and 'DEFAULT'. The default list is nor-
       mally set when you compile OpenSSL.

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

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

       For NSS,	valid examples	of  cipher  lists  include  'rsa_rc4_128_md5',
       'rsa_aes_128_sha',  etc.	 With NSS you don't add/remove ciphers.	If one
       uses this option	then all known ciphers are  disabled  and  only	 those
       passed in are enabled.

       For  WolfSSL,  valid  examples  of  cipher  lists  include  'ECDHE-RSA-
       RC4-SHA', 'AES256-SHA:AES256-SHA256', etc.

       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_SSL_CIPHER_LIST, "TLSv1");
	 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_SSLVERSION(3), CURLOPT_USE_SSL(3),

libcurl	7.54.1			 May 31, 2017	    CURLOPT_SSL_CIPHER_LIST(3)

NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO

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