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-rw-r--r--lib/ssl/src/ssl_cipher.erl36
1 files changed, 25 insertions, 11 deletions
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl
index 93a84933a2..d737f74aa3 100644
--- a/lib/ssl/src/ssl_cipher.erl
+++ b/lib/ssl/src/ssl_cipher.erl
@@ -34,6 +34,7 @@
-include_lib("public_key/include/public_key.hrl").
-export([security_parameters/2, security_parameters/3, suite_definition/1,
+ erl_suite_definition/1,
cipher_init/3, decipher/6, cipher/5, decipher_aead/6, cipher_aead/6,
suite/1, suites/1, all_suites/1,
ec_keyed_suites/0, anonymous_suites/1, psk_suites/1, srp_suites/0,
@@ -48,8 +49,11 @@
| aes_128_cbc | aes_256_cbc | aes_128_gcm | aes_256_gcm | chacha20_poly1305.
-type hash() :: null | sha | md5 | sha224 | sha256 | sha384 | sha512.
-type key_algo() :: null | rsa | dhe_rsa | dhe_dss | ecdhe_ecdsa| ecdh_ecdsa | ecdh_rsa| srp_rsa| srp_dss | psk | dhe_psk | rsa_psk | dh_anon | ecdh_anon | srp_anon.
--type erl_cipher_suite() :: {key_algo(), cipher(), hash()}.
--type int_cipher_suite() :: {key_algo(), cipher(), hash(), hash() | default_prf}.
+-type erl_cipher_suite() :: {key_algo(), cipher(), hash()} % Pre TLS 1.2
+ %% TLS 1.2, internally PRE TLS 1.2 will use default_prf
+ | {key_algo(), cipher(), hash(), hash() | default_prf}.
+
+
-type cipher_suite() :: binary().
-type cipher_enum() :: integer().
-type openssl_cipher_suite() :: string().
@@ -428,7 +432,7 @@ des_suites(_)->
?TLS_RSA_WITH_DES_CBC_SHA].
%%--------------------------------------------------------------------
--spec suite_definition(cipher_suite()) -> int_cipher_suite().
+-spec suite_definition(cipher_suite()) -> erl_cipher_suite().
%%
%% Description: Return erlang cipher suite definition.
%% Note: Currently not supported suites are commented away.
@@ -733,6 +737,20 @@ suite_definition(?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256) ->
{dhe_rsa, chacha20_poly1305, null, sha256}.
%%--------------------------------------------------------------------
+-spec erl_suite_definition(cipher_suite()) -> erl_cipher_suite().
+%%
+%% Description: Return erlang cipher suite definition. Filters last value
+%% for now (compatibility reasons).
+%%--------------------------------------------------------------------
+erl_suite_definition(S) ->
+ case suite_definition(S) of
+ {KeyExchange, Cipher, Hash, default_prf} ->
+ {KeyExchange, Cipher, Hash};
+ Suite ->
+ Suite
+ end.
+
+%%--------------------------------------------------------------------
-spec suite(erl_cipher_suite()) -> cipher_suite().
%%
%% Description: Return TLS cipher suite definition.
@@ -1395,18 +1413,14 @@ filter(DerCert, Ciphers) ->
%%
%% Description: Filter suites for algorithms supported by crypto.
%%-------------------------------------------------------------------
-filter_suites(Suites = [{_,_,_}|_]) ->
+filter_suites(Suites = [Value|_]) when is_tuple(Value) ->
Algos = crypto:supports(),
+ Hashs = proplists:get_value(hashs, Algos),
lists:filter(fun({KeyExchange, Cipher, Hash}) ->
is_acceptable_keyexchange(KeyExchange, proplists:get_value(public_keys, Algos)) andalso
is_acceptable_cipher(Cipher, proplists:get_value(ciphers, Algos)) andalso
- is_acceptable_hash(Hash, proplists:get_value(hashs, Algos))
- end, Suites);
-
-filter_suites(Suites = [{_,_,_,_}|_]) ->
- Algos = crypto:supports(),
- Hashs = proplists:get_value(hashs, Algos),
- lists:filter(fun({KeyExchange, Cipher, Hash, Prf}) ->
+ is_acceptable_hash(Hash, proplists:get_value(hashs, Algos));
+ ({KeyExchange, Cipher, Hash, Prf}) ->
is_acceptable_keyexchange(KeyExchange, proplists:get_value(public_keys, Algos)) andalso
is_acceptable_cipher(Cipher, proplists:get_value(ciphers, Algos)) andalso
is_acceptable_hash(Hash, Hashs) andalso