mbedtls: Add CURLOPT_TLS13_CIPHERS support #14384
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Bring setting ciphers with mbedTLS in line with other SSL backends, to make the curl interface more consistent across the backends. Now the tls1.3 ciphers are set with the --tls13-ciphers option, when not set the default tls1.3 ciphers are used. The tls1.2 (1.1, 1.0) ciphers are set with the --ciphers option, when not set the default tls1.2 ciphers are used. The ciphers available for the connection are now a union of the tls1.3 and tls1.2 ciphers. This changes the behaviour for mbedTLS when --ciphers is set, but --tls13-ciphers is not set. Now the ciphers set with --ciphers are combined with the default tls1.3 ciphers, whereas before solely the ciphers of --ciphers were used. Thus before when no tls1.3 ciphers were specified in --ciphers, tls1.3 was completely disabled. This might not be what the user expected, especially as this does not happen with OpenSSL.
jan2000
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Documentation for curl#14384 and curl#14385
jan2000
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to jan2000/curl
that referenced
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Aug 4, 2024
Documentation for curl#14384 and curl#14385
icing
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Aug 5, 2024
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Bring setting ciphers with mbedTLS in line with other SSL backends, to make the curl interface more consistent across the backends.
Now the tls1.3 ciphers are set with the --tls13-ciphers option, when not set the default tls1.3 ciphers are used. The tls1.2 (1.1, 1.0) ciphers are set with the --ciphers option, when not set the default tls1.2 ciphers are used. The ciphers available for the connection are now a union of the tls1.3 and tls1.2 ciphers.
This changes the behaviour for mbedTLS when --ciphers is set, but --tls13-ciphers is not set. Now the ciphers set with --ciphers are combined with the default tls1.3 ciphers, whereas before solely the ciphers of --ciphers were used.
Thus before when no tls1.3 ciphers were specified in --ciphers, tls1.3 was completely disabled. This might not be what the user expected, especially as this does not happen with OpenSSL.