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curl/docs/cmdline-opts/tls13-ciphers.d

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+Long: tls13-ciphers
+Arg: <ciphersuite list>
+help: TLS 1.3 cipher suites to use
+Protocols: TLS
+Category: tls
+---
+Specifies which cipher suites to use in the connection if it negotiates TLS
+1.3. The list of ciphers suites must specify valid ciphers. Read up on TLS 1.3
+cipher suite details 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. If you are using a different SSL backend you can try setting TLS 1.3
+cipher suites by using the --ciphers option.
+
+If this option is used several times, the last one will be used.