diff options
Diffstat (limited to 'lib/ssl/src/ssl_cipher.erl')
| -rw-r--r-- | lib/ssl/src/ssl_cipher.erl | 36 |
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 |