1 c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 2 SPDX-License-Identifier: curl 3 Long: tls13-ciphers 4 Arg: <ciphersuite list> 5 help: TLS 1.3 cipher suites to use 6 Protocols: TLS 7 Category: tls 8 Example: --tls13-ciphers TLS_AES_128_GCM_SHA256 $URL 9 Added: 7.61.0 10 See-also: ciphers curves proxy-tls13-ciphers 11 Multi: single 12 --- 13 Specifies which cipher suites to use in the connection if it negotiates TLS 14 1.3. The list of ciphers suites must specify valid ciphers. Read up on TLS 1.3 15 cipher suite details on this URL: 16 17 https://curl.se/docs/ssl-ciphers.html 18 19 This option is currently used only when curl is built to use OpenSSL 1.1.1 or 20 later, or Schannel. If you are using a different SSL backend you can try 21 setting TLS 1.3 cipher suites by using the --ciphers option. 22