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tls: add CURLOPT_SSL_EC_CURVES and --curves

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Closes #5892
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Michael Baentsch 2020-08-29 14:09:24 +02:00 • committed by Daniel Stenberg
parent a337355487
commit ede125b7b7
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20 changed files with 131 additions and 1 deletions
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1
docs/cmdline-opts/Makefile.inc
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@ -41,6 +41,7 @@ DPAGES = \
cookie.d \
create-dirs.d \
crlf.d crlfile.d \
curves.d \
data-ascii.d \
data-binary.d \
data-urlencode.d \

17
docs/cmdline-opts/curves.d Normal file
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@ -0,0 +1,17 @@
Long: curves
Arg: <algorithm list>
Help: (EC) TLS key exchange algorithm(s) to request
Protocols: TLS
Added: 7.73.0
---
Tells curl to request 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/s_server" utilities.
--curves allows a OpenSSL powered curl to make SSL-connections with exactly
the (EC) curve requested by the client, avoiding intransparent client/server
negotiations.
If this option is set, the default curves list built into openssl will be
ignored.