1 Long: proxy-tls13-ciphers 2 Arg: <ciphersuite list> 3 help: TLS 1.3 proxy cipher suites 4 Protocols: TLS 5 Category: proxy tls 6 --- 7 Specifies which cipher suites to use in the connection to your HTTPS proxy 8 when it negotiates TLS 1.3. The list of ciphers suites must specify valid 9 ciphers. Read up on TLS 1.3 cipher suite details on this URL: 10 11 https://curl.se/docs/ssl-ciphers.html 12 13 This option is currently used only when curl is built to use OpenSSL 1.1.1 or 14 later. If you are using a different SSL backend you can try setting TLS 1.3 15 cipher suites by using the --proxy-ciphers option. 16 17 If this option is used several times, the last one will be used. 18