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CIPHERS.md: Mention the options used to set TLS 1.3 ciphers

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Closes https://github.com/curl/curl/pull/3159
This commit is contained in:
Jay Satiro 2018-10-23 00:49:12 -04:00
parent db1338474c
commit a023dfa19a
1 changed files with 12 additions and 3 deletions
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15
docs/CIPHERS.md
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@ -1,7 +1,16 @@
# Ciphers
With curl's options `CURLOPT_SSL_CIPHER_LIST` and `--ciphers` users can
control which ciphers to consider when negotiating TLS connections.
With curl's options
[`CURLOPT_SSL_CIPHER_LIST`](https://curl.haxx.se/libcurl/c/CURLOPT_SSL_CIPHER_LIST.html)
and
[`--ciphers`](https://curl.haxx.se/docs/manpage.html#--ciphers)
users can control which ciphers to consider when negotiating TLS connections.
TLS 1.3 ciphers are supported since curl 7.61 with options
[`CURLOPT_TLS13_CIPHERS`](https://curl.haxx.se/libcurl/c/CURLOPT_TLS13_CIPHERS.html)
and
[`--tls13-ciphers`](https://curl.haxx.se/docs/manpage.html#--tls13-ciphers)
.
The names of the known ciphers differ depending on which TLS backend that
libcurl was built to use. This is an attempt to list known cipher names.
@ -146,7 +155,7 @@ When specifying multiple cipher names, separate them with colon (`:`).
### TLS 1.3 cipher suites
(Note: the TLS 1.3 cipher suites are set with a separate option.)
(Note these ciphers are set with `CURLOPT_TLS13_CIPHERS` and `--tls13-ciphers`)
`TLS13-AES-256-GCM-SHA384`
`TLS13-CHACHA20-POLY1305-SHA256`