diff options
Diffstat (limited to 'lib/ssl')
| -rw-r--r-- | lib/ssl/doc/src/ssl.xml | 23 | ||||
| -rw-r--r-- | lib/ssl/src/ssl.erl | 7 |
2 files changed, 27 insertions, 3 deletions
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml index 3aa6e09c2c..05590666da 100644 --- a/lib/ssl/doc/src/ssl.xml +++ b/lib/ssl/doc/src/ssl.xml @@ -207,6 +207,10 @@ <datatype> <name name="sign_scheme"/> </datatype> + + <datatype> + <name name="group"/> + </datatype> <datatype> <name name="kex_algo"/> @@ -363,7 +367,20 @@ </p> </desc> </datatype> - + + <datatype> + <name name="supported_groups"/> + <desc> + <p>TLS 1.3 introduces the "supported_groups" extension that is used for negotiating + the Diffie-Hellman parameters in a TLS 1.3 handshake. Both client and server + can specify a list of parameters that they are willing to use. + </p> + <p> If it is not specified it will use a default list ([x25519, x448, secp256r1, secp384r1]) that + is filtered based on the installed crypto library version. + </p> + </desc> + </datatype> + <datatype> <name name="secure_renegotiation"/> <desc><p>Specifies if to reject renegotiation attempt that does @@ -919,6 +936,8 @@ fun(srp, Username :: string(), UserState :: term()) -> <name name="dh_der"/> <desc><p>The DER-encoded Diffie-Hellman parameters. If specified, it overrides option <c>dhfile</c>.</p> + <warning><p>The <c>dh_der</c> option is not supported by TLS 1.3. Use the + <c>supported_groups</c> option instead.</p></warning> </desc> </datatype> @@ -928,6 +947,8 @@ fun(srp, Username :: string(), UserState :: term()) -> parameters to be used by the server if a cipher suite using Diffie Hellman key exchange is negotiated. If not specified, default parameters are used.</p> + <warning><p>The <c>dh_file</c> option is not supported by TLS 1.3. Use the + <c>supported_groups</c> option instead.</p></warning> </desc> </datatype> diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl index 20b1e85ceb..ce639e8fde 100644 --- a/lib/ssl/src/ssl.erl +++ b/lib/ssl/src/ssl.erl @@ -128,7 +128,8 @@ tls_alert/0, srp_param_type/0, named_curve/0, - sign_scheme/0]). + sign_scheme/0, + group/0]). %% ------------------------------------------------------------------------------------------------------- @@ -243,7 +244,7 @@ secp160r2. % exported -type group() :: secp256r1 | secp384r1 | secp521r1 | ffdhe2048 | - ffdhe3072 | ffdhe4096 | ffdhe6144 | ffdhe8192. + ffdhe3072 | ffdhe4096 | ffdhe6144 | ffdhe8192. % exported -type srp_param_type() :: srp_1024 | srp_1536 | @@ -296,6 +297,7 @@ {ciphers, cipher_suites()} | {eccs, [named_curve()]} | {signature_algs_cert, signature_schemes()} | + {supported_groups, supported_groups()} | {secure_renegotiate, secure_renegotiation()} | {depth, allowed_cert_chain_length()} | {verify_fun, custom_verify()} | @@ -342,6 +344,7 @@ -type protocol_versions() :: [protocol_version()]. -type signature_algs() :: [{hash(), sign_algo()}]. -type signature_schemes() :: [sign_scheme()]. +-type supported_groups() :: [group()]. -type custom_user_lookup() :: {Lookupfun :: fun(), UserState :: any()}. -type padding_check() :: boolean(). -type beast_mitigation() :: one_n_minus_one | zero_n | disabled. |