1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Long: proxy-tls13-ciphers 5Arg: <ciphersuite list> 6help: TLS 1.3 proxy cipher suites 7Protocols: TLS 8Category: proxy tls 9Added: 7.61.0 10Multi: single 11See-also: 12 - tls13-ciphers 13 - curves 14 - proxy-ciphers 15Example: 16 - --proxy-tls13-ciphers TLS_AES_128_GCM_SHA256 -x proxy $URL 17--- 18 19# `--proxy-tls13-ciphers` 20 21Specifies which cipher suites to use in the connection to your HTTPS proxy 22when it negotiates TLS 1.3. The list of ciphers suites must specify valid 23ciphers. Read up on TLS 1.3 cipher suite details on this URL: 24 25https://curl.se/docs/ssl-ciphers.html 26 27This option is currently used only when curl is built to use OpenSSL 1.1.1 or 28later. If you are using a different SSL backend you can try setting TLS 1.3 29cipher suites by using the --proxy-ciphers option. 30