| c | SPDX-License-Identifier | Long | Arg | Help | Protocols | Added | Category | Multi | See-also | Example | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Copyright (C) Daniel Stenberg, <[email protected]>, et al. |
curl |
curves |
<list> |
(EC) TLS key exchange algorithms to request |
TLS |
7.73.0 |
tls |
single |
|
|
Set specific curves to use during SSL session establishment according to RFC
8422, 5.1. Multiple algorithms can be provided by separating them with :
(e.g. X25519:P-521). The parameter is available identically in the OpenSSL
s_client and s_server utilities.
--curves allows a OpenSSL powered curl to make SSL-connections with exactly the (EC) curve requested by the client, avoiding nontransparent client/server negotiations.
If this option is set, the default curves list built into OpenSSL are ignored.