2020-08-29 08:09:24 -04:00
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Long: curves
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Arg: <algorithm list>
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Help: (EC) TLS key exchange algorithm(s) to request
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Protocols: TLS
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Added: 7.73.0
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2020-07-13 08:15:04 -04:00
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Category: tls
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2020-08-29 08:09:24 -04:00
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---
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Tells curl to request specific curves to use during SSL session establishment
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according to RFC 8422, 5.1. Multiple algorithms can be provided by separating
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them with ":" (e.g. "X25519:P-521"). The parameter is available identically
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in the "openssl s_client/s_server" utilities.
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--curves allows a OpenSSL powered curl to make SSL-connections with exactly
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the (EC) curve requested by the client, avoiding intransparent client/server
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negotiations.
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If this option is set, the default curves list built into openssl will be
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ignored.
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