% %% %CopyrightBegin% %% %% Copyright Ericsson AB 2007-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. %% You may obtain a copy of the License at %% %% http://www.apache.org/licenses/LICENSE-2.0 %% %% Unless required by applicable law or agreed to in writing, software %% distributed under the License is distributed on an "AS IS" BASIS, %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %% See the License for the specific language governing permissions and %% limitations under the License. %% %% %CopyrightEnd% %% %% %%---------------------------------------------------------------------- %% Purpose: Help functions for handling the SSL ciphers %% %%---------------------------------------------------------------------- -module(ssl_cipher). -include("ssl_internal.hrl"). -include("ssl_record.hrl"). -include("ssl_cipher.hrl"). -include("ssl_handshake.hrl"). -include("ssl_alert.hrl"). -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, crypto_support_filters/0, ec_keyed_suites/0, chacha_suites/1, anonymous_suites/1, psk_suites/1, psk_suites_anon/1, srp_suites/0, srp_suites_anon/0, rc4_suites/1, des_suites/1, rsa_suites/1, openssl_suite/1, openssl_suite_name/1, filter/2, filter_suites/1, filter_suites/2, hash_algorithm/1, sign_algorithm/1, is_acceptable_hash/2, is_fallback/1, random_bytes/1, calc_mac_hash/4, is_stream_ciphersuite/1]). -export_type([cipher_suite/0, erl_cipher_suite/0, old_erl_cipher_suite/0, openssl_cipher_suite/0, hash/0, key_algo/0, sign_algo/0]). -type cipher() :: null |rc4_128 | des_cbc | '3des_ede_cbc' | aes_128_cbc | aes_256_cbc | aes_128_gcm | aes_256_gcm | chacha20_poly1305. -type hash() :: null | md5 | sha | sha224 | sha256 | sha384 | sha512. -type sign_algo() :: rsa | dsa | ecdsa. -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_exchange := key_algo(), cipher := cipher(), mac := hash() | aead, prf := hash() | default_prf %% Old cipher suites, version dependent }. -type old_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(). -compile(inline). %%-------------------------------------------------------------------- -spec security_parameters(cipher_suite(), #security_parameters{}) -> #security_parameters{}. %% Only security_parameters/2 should call security_parameters/3 with undefined as %% first argument. %%-------------------------------------------------------------------- security_parameters(?TLS_NULL_WITH_NULL_NULL = CipherSuite, SecParams) -> security_parameters(undefined, CipherSuite, SecParams). %%-------------------------------------------------------------------- -spec security_parameters(ssl_record:ssl_version() | undefined, cipher_suite(), #security_parameters{}) -> #security_parameters{}. %% %% Description: Returns a security parameters record where the %% cipher values has been updated according to %%------------------------------------------------------------------- security_parameters(Version, CipherSuite, SecParams) -> #{cipher := Cipher, mac := Hash, prf := PrfHashAlg} = suite_definition(CipherSuite), SecParams#security_parameters{ cipher_suite = CipherSuite, bulk_cipher_algorithm = bulk_cipher_algorithm(Cipher), cipher_type = type(Cipher), key_size = effective_key_bits(Cipher), expanded_key_material_length = expanded_key_material(Cipher), key_material_length = key_material(Cipher), iv_size = iv_size(Cipher), mac_algorithm = mac_algorithm(Hash), prf_algorithm = prf_algorithm(PrfHashAlg, Version), hash_size = hash_size(Hash)}. %%-------------------------------------------------------------------- -spec cipher_init(cipher_enum(), binary(), binary()) -> #cipher_state{}. %% %% Description: Initializes the #cipher_state according to BCA %%------------------------------------------------------------------- cipher_init(?RC4, IV, Key) -> State = crypto:stream_init(rc4, Key), #cipher_state{iv = IV, key = Key, state = State}; cipher_init(?AES_GCM, IV, Key) -> <> = random_bytes(8), #cipher_state{iv = IV, key = Key, nonce = Nonce}; cipher_init(_BCA, IV, Key) -> #cipher_state{iv = IV, key = Key}. %%-------------------------------------------------------------------- -spec cipher(cipher_enum(), #cipher_state{}, binary(), iodata(), ssl_record:ssl_version()) -> {binary(), #cipher_state{}}. %% %% Description: Encrypts the data and the MAC using chipher described %% by cipher_enum() and updating the cipher state %% Used for "MAC then Cipher" suites where first an HMAC of the %% data is calculated and the data plus the HMAC is ecncrypted. %%------------------------------------------------------------------- cipher(?NULL, CipherState, <<>>, Fragment, _Version) -> GenStreamCipherList = [Fragment, <<>>], {GenStreamCipherList, CipherState}; cipher(?RC4, CipherState = #cipher_state{state = State0}, Mac, Fragment, _Version) -> GenStreamCipherList = [Fragment, Mac], {State1, T} = crypto:stream_encrypt(State0, GenStreamCipherList), {T, CipherState#cipher_state{state = State1}}; cipher(?DES, CipherState, Mac, Fragment, Version) -> block_cipher(fun(Key, IV, T) -> crypto:block_encrypt(des_cbc, Key, IV, T) end, block_size(des_cbc), CipherState, Mac, Fragment, Version); cipher(?'3DES', CipherState, Mac, Fragment, Version) -> block_cipher(fun(<>, IV, T) -> crypto:block_encrypt(des3_cbc, [K1, K2, K3], IV, T) end, block_size(des_cbc), CipherState, Mac, Fragment, Version); cipher(?AES_CBC, CipherState, Mac, Fragment, Version) -> block_cipher(fun(Key, IV, T) when byte_size(Key) =:= 16 -> crypto:block_encrypt(aes_cbc128, Key, IV, T); (Key, IV, T) when byte_size(Key) =:= 32 -> crypto:block_encrypt(aes_cbc256, Key, IV, T) end, block_size(aes_128_cbc), CipherState, Mac, Fragment, Version). %%-------------------------------------------------------------------- -spec cipher_aead(cipher_enum(), #cipher_state{}, integer(), binary(), iodata(), ssl_record:ssl_version()) -> {binary(), #cipher_state{}}. %% %% Description: Encrypts the data and protects associated data (AAD) using chipher %% described by cipher_enum() and updating the cipher state %% Use for suites that use authenticated encryption with associated data (AEAD) %%------------------------------------------------------------------- cipher_aead(?AES_GCM, CipherState, SeqNo, AAD, Fragment, Version) -> aead_cipher(aes_gcm, CipherState, SeqNo, AAD, Fragment, Version); cipher_aead(?CHACHA20_POLY1305, CipherState, SeqNo, AAD, Fragment, Version) -> aead_cipher(chacha20_poly1305, CipherState, SeqNo, AAD, Fragment, Version). aead_cipher(chacha20_poly1305, #cipher_state{key=Key} = CipherState, SeqNo, AAD0, Fragment, _Version) -> CipherLen = erlang:iolist_size(Fragment), AAD = <>, Nonce = ?uint64(SeqNo), {Content, CipherTag} = crypto:block_encrypt(chacha20_poly1305, Key, Nonce, {AAD, Fragment}), {<>, CipherState}; aead_cipher(Type, #cipher_state{key=Key, iv = IV0, nonce = Nonce} = CipherState, _SeqNo, AAD0, Fragment, _Version) -> CipherLen = erlang:iolist_size(Fragment), AAD = <>, <> = IV0, IV = <>, {Content, CipherTag} = crypto:block_encrypt(Type, Key, IV, {AAD, Fragment}), {<>, CipherState#cipher_state{nonce = Nonce + 1}}. build_cipher_block(BlockSz, Mac, Fragment) -> TotSz = byte_size(Mac) + erlang:iolist_size(Fragment) + 1, {PaddingLength, Padding} = get_padding(TotSz, BlockSz), [Fragment, Mac, PaddingLength, Padding]. block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0, Mac, Fragment, {3, N}) when N == 0; N == 1 -> L = build_cipher_block(BlockSz, Mac, Fragment), T = Fun(Key, IV, L), NextIV = next_iv(T, IV), {T, CS0#cipher_state{iv=NextIV}}; block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0, Mac, Fragment, {3, N}) when N == 2; N == 3 -> NextIV = random_iv(IV), L0 = build_cipher_block(BlockSz, Mac, Fragment), L = [NextIV|L0], T = Fun(Key, IV, L), {T, CS0#cipher_state{iv=NextIV}}. %%-------------------------------------------------------------------- -spec decipher(cipher_enum(), integer(), #cipher_state{}, binary(), ssl_record:ssl_version(), boolean()) -> {binary(), binary(), #cipher_state{}} | #alert{}. %% %% Description: Decrypts the data and the MAC using cipher described %% by cipher_enum() and updating the cipher state. %% Used for "MAC then Cipher" suites where first the data is decrypted %% and the an HMAC of the decrypted data is checked %%------------------------------------------------------------------- decipher(?NULL, _HashSz, CipherState, Fragment, _, _) -> {Fragment, <<>>, CipherState}; decipher(?RC4, HashSz, CipherState = #cipher_state{state = State0}, Fragment, _, _) -> try crypto:stream_decrypt(State0, Fragment) of {State, Text} -> GSC = generic_stream_cipher_from_bin(Text, HashSz), #generic_stream_cipher{content = Content, mac = Mac} = GSC, {Content, Mac, CipherState#cipher_state{state = State}} catch _:_ -> %% This is a DECRYPTION_FAILED but %% "differentiating between bad_record_mac and decryption_failed %% alerts may permit certain attacks against CBC mode as used in %% TLS [CBCATT]. It is preferable to uniformly use the %% bad_record_mac alert to hide the specific type of the error." ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, decryption_failed) end; decipher(?DES, HashSz, CipherState, Fragment, Version, PaddingCheck) -> block_decipher(fun(Key, IV, T) -> crypto:block_decrypt(des_cbc, Key, IV, T) end, CipherState, HashSz, Fragment, Version, PaddingCheck); decipher(?'3DES', HashSz, CipherState, Fragment, Version, PaddingCheck) -> block_decipher(fun(<>, IV, T) -> crypto:block_decrypt(des3_cbc, [K1, K2, K3], IV, T) end, CipherState, HashSz, Fragment, Version, PaddingCheck); decipher(?AES_CBC, HashSz, CipherState, Fragment, Version, PaddingCheck) -> block_decipher(fun(Key, IV, T) when byte_size(Key) =:= 16 -> crypto:block_decrypt(aes_cbc128, Key, IV, T); (Key, IV, T) when byte_size(Key) =:= 32 -> crypto:block_decrypt(aes_cbc256, Key, IV, T) end, CipherState, HashSz, Fragment, Version, PaddingCheck). %%-------------------------------------------------------------------- -spec decipher_aead(cipher_enum(), #cipher_state{}, integer(), binary(), binary(), ssl_record:ssl_version()) -> {binary(), #cipher_state{}} | #alert{}. %% %% Description: Decrypts the data and checks the associated data (AAD) MAC using %% cipher described by cipher_enum() and updating the cipher state. %% Use for suites that use authenticated encryption with associated data (AEAD) %%------------------------------------------------------------------- decipher_aead(?AES_GCM, CipherState, SeqNo, AAD, Fragment, Version) -> aead_decipher(aes_gcm, CipherState, SeqNo, AAD, Fragment, Version); decipher_aead(?CHACHA20_POLY1305, CipherState, SeqNo, AAD, Fragment, Version) -> aead_decipher(chacha20_poly1305, CipherState, SeqNo, AAD, Fragment, Version). block_decipher(Fun, #cipher_state{key=Key, iv=IV} = CipherState0, HashSz, Fragment, Version, PaddingCheck) -> try Text = Fun(Key, IV, Fragment), NextIV = next_iv(Fragment, IV), GBC = generic_block_cipher_from_bin(Version, Text, NextIV, HashSz), Content = GBC#generic_block_cipher.content, Mac = GBC#generic_block_cipher.mac, CipherState1 = CipherState0#cipher_state{iv=GBC#generic_block_cipher.next_iv}, case is_correct_padding(GBC, Version, PaddingCheck) of true -> {Content, Mac, CipherState1}; false -> %% decryption failed or invalid padding, %% intentionally break Content to make %% sure a packet with invalid padding %% but otherwise correct data will fail %% the MAC test later {<<16#F0, Content/binary>>, Mac, CipherState1} end catch _:_ -> %% This is a DECRYPTION_FAILED but %% "differentiating between bad_record_mac and decryption_failed %% alerts may permit certain attacks against CBC mode as used in %% TLS [CBCATT]. It is preferable to uniformly use the %% bad_record_mac alert to hide the specific type of the error." ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, decryption_failed) end. aead_ciphertext_to_state(chacha20_poly1305, SeqNo, _IV, AAD0, Fragment, _Version) -> CipherLen = size(Fragment) - 16, <> = Fragment, AAD = <>, Nonce = ?uint64(SeqNo), {Nonce, AAD, CipherText, CipherTag}; aead_ciphertext_to_state(_, _SeqNo, <>, AAD0, Fragment, _Version) -> CipherLen = size(Fragment) - 24, <> = Fragment, AAD = <>, Nonce = <>, {Nonce, AAD, CipherText, CipherTag}. aead_decipher(Type, #cipher_state{key = Key, iv = IV} = CipherState, SeqNo, AAD0, Fragment, Version) -> try {Nonce, AAD, CipherText, CipherTag} = aead_ciphertext_to_state(Type, SeqNo, IV, AAD0, Fragment, Version), case crypto:block_decrypt(Type, Key, Nonce, {AAD, CipherText, CipherTag}) of Content when is_binary(Content) -> {Content, CipherState}; _ -> ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, decryption_failed) end catch _:_ -> ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, decryption_failed) end. %%-------------------------------------------------------------------- -spec suites(ssl_record:ssl_version()) -> [cipher_suite()]. %% %% Description: Returns a list of supported cipher suites. %%-------------------------------------------------------------------- suites({3, 0}) -> ssl_v3:suites(); suites({3, Minor}) -> tls_v1:suites(Minor); suites({_, Minor}) -> dtls_v1:suites(Minor). all_suites({3, _} = Version) -> suites(Version) ++ chacha_suites(Version) ++ psk_suites(Version) ++ srp_suites() ++ rc4_suites(Version) ++ des_suites(Version) ++ rsa_suites(Version); all_suites(Version) -> dtls_v1:all_suites(Version). %%-------------------------------------------------------------------- -spec chacha_suites(ssl_record:ssl_version() | integer()) -> [cipher_suite()]. %% %% Description: Returns list of the chacha cipher suites, only supported %% if explicitly set by user for now due to interop problems, proably need %% to be fixed in crypto. %%-------------------------------------------------------------------- chacha_suites({3, _}) -> [?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, ?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, ?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256]; chacha_suites(_) -> []. %%-------------------------------------------------------------------- -spec anonymous_suites(ssl_record:ssl_version() | integer()) -> [cipher_suite()]. %% %% Description: Returns a list of the anonymous cipher suites, only supported %% if explicitly set by user. Intended only for testing. %%-------------------------------------------------------------------- anonymous_suites({3, N}) -> srp_suites_anon() ++ anonymous_suites(N); anonymous_suites({254, _} = Version) -> dtls_v1:anonymous_suites(Version); anonymous_suites(N) when N >= 3 -> psk_suites_anon(N) ++ [?TLS_DH_anon_WITH_AES_128_GCM_SHA256, ?TLS_DH_anon_WITH_AES_256_GCM_SHA384, ?TLS_DH_anon_WITH_AES_128_CBC_SHA256, ?TLS_DH_anon_WITH_AES_256_CBC_SHA256, ?TLS_ECDH_anon_WITH_AES_128_CBC_SHA, ?TLS_ECDH_anon_WITH_AES_256_CBC_SHA, ?TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA, ?TLS_DH_anon_WITH_RC4_128_MD5]; anonymous_suites(2 = N) -> psk_suites_anon(N) ++ [?TLS_ECDH_anon_WITH_AES_128_CBC_SHA, ?TLS_ECDH_anon_WITH_AES_256_CBC_SHA, ?TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA, ?TLS_DH_anon_WITH_DES_CBC_SHA, ?TLS_DH_anon_WITH_RC4_128_MD5]; anonymous_suites(N) when N == 0; N == 1 -> psk_suites_anon(N) ++ [?TLS_DH_anon_WITH_RC4_128_MD5, ?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA, ?TLS_DH_anon_WITH_DES_CBC_SHA ]. %%-------------------------------------------------------------------- -spec psk_suites(ssl_record:ssl_version() | integer()) -> [cipher_suite()]. %% %% Description: Returns a list of the PSK cipher suites, only supported %% if explicitly set by user. %%-------------------------------------------------------------------- psk_suites({3, N}) -> psk_suites(N); psk_suites(N) when N >= 3 -> [ ?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, ?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 ] ++ psk_suites(0); psk_suites(_) -> [?TLS_RSA_PSK_WITH_AES_256_CBC_SHA, ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA, ?TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, ?TLS_RSA_PSK_WITH_RC4_128_SHA]. %%-------------------------------------------------------------------- -spec psk_suites_anon(ssl_record:ssl_version() | integer()) -> [cipher_suite()]. %% %% Description: Returns a list of the anonymous PSK cipher suites, only supported %% if explicitly set by user. %%-------------------------------------------------------------------- psk_suites_anon({3, N}) -> psk_suites_anon(N); psk_suites_anon(N) when N >= 3 -> [ ?TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, ?TLS_PSK_WITH_AES_256_GCM_SHA384, ?TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, ?TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, ?TLS_PSK_WITH_AES_256_CBC_SHA384, ?TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256, ?TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, ?TLS_PSK_WITH_AES_128_GCM_SHA256, ?TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, ?TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, ?TLS_PSK_WITH_AES_128_CBC_SHA256 ] ++ psk_suites_anon(0); psk_suites_anon(_) -> [?TLS_DHE_PSK_WITH_AES_256_CBC_SHA, ?TLS_PSK_WITH_AES_256_CBC_SHA, ?TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, ?TLS_DHE_PSK_WITH_AES_128_CBC_SHA, ?TLS_PSK_WITH_AES_128_CBC_SHA, ?TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, ?TLS_PSK_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDHE_PSK_WITH_RC4_128_SHA, ?TLS_DHE_PSK_WITH_RC4_128_SHA, ?TLS_PSK_WITH_RC4_128_SHA]. %%-------------------------------------------------------------------- -spec srp_suites() -> [cipher_suite()]. %% %% Description: Returns a list of the SRP cipher suites, only supported %% if explicitly set by user. %%-------------------------------------------------------------------- srp_suites() -> [?TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA, ?TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA, ?TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA, ?TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA]. %%-------------------------------------------------------------------- -spec srp_suites_anon() -> [cipher_suite()]. %% %% Description: Returns a list of the SRP anonymous cipher suites, only supported %% if explicitly set by user. %%-------------------------------------------------------------------- srp_suites_anon() -> [?TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA, ?TLS_SRP_SHA_WITH_AES_128_CBC_SHA, ?TLS_SRP_SHA_WITH_AES_256_CBC_SHA]. %%-------------------------------------------------------------------- -spec rc4_suites(Version::ssl_record:ssl_version() | integer()) -> [cipher_suite()]. %% %% Description: Returns a list of the RSA|(ECDH/RSA)| (ECDH/ECDSA) %% with RC4 cipher suites, only supported if explicitly set by user. %% Are not considered secure any more. Other RC4 suites already %% belonged to the user configured only category. %%-------------------------------------------------------------------- rc4_suites({3, 0}) -> rc4_suites(0); rc4_suites({3, Minor}) -> rc4_suites(Minor) ++ rc4_suites(0); rc4_suites(0) -> [?TLS_RSA_WITH_RC4_128_SHA, ?TLS_RSA_WITH_RC4_128_MD5]; rc4_suites(N) when N =< 3 -> [?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, ?TLS_ECDHE_RSA_WITH_RC4_128_SHA, ?TLS_ECDH_ECDSA_WITH_RC4_128_SHA, ?TLS_ECDH_RSA_WITH_RC4_128_SHA]. %%-------------------------------------------------------------------- -spec des_suites(Version::ssl_record:ssl_version()) -> [cipher_suite()]. %% %% Description: Returns a list of the cipher suites %% with DES cipher, only supported if explicitly set by user. %% Are not considered secure any more. %%-------------------------------------------------------------------- des_suites(_)-> [?TLS_DHE_RSA_WITH_DES_CBC_SHA, ?TLS_RSA_WITH_DES_CBC_SHA, ?TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA ]. %%-------------------------------------------------------------------- -spec rsa_suites(Version::ssl_record:ssl_version() | integer()) -> [cipher_suite()]. %% %% Description: Returns a list of the RSA key exchange %% cipher suites, only supported if explicitly set by user. %% Are not considered secure any more. %%-------------------------------------------------------------------- rsa_suites({3, 0}) -> rsa_suites(0); rsa_suites({3, Minor}) -> rsa_suites(Minor) ++ rsa_suites(0); rsa_suites(0) -> [?TLS_RSA_WITH_AES_256_CBC_SHA, ?TLS_RSA_WITH_AES_128_CBC_SHA, ?TLS_RSA_WITH_3DES_EDE_CBC_SHA ]; rsa_suites(N) when N =< 3 -> [ ?TLS_RSA_WITH_AES_256_GCM_SHA384, ?TLS_RSA_WITH_AES_256_CBC_SHA256, ?TLS_RSA_WITH_AES_128_GCM_SHA256, ?TLS_RSA_WITH_AES_128_CBC_SHA256 ]. %%-------------------------------------------------------------------- -spec suite_definition(cipher_suite()) -> erl_cipher_suite(). %% %% Description: Return erlang cipher suite definition. %% Note: Currently not supported suites are commented away. %% They should be supported or removed in the future. %%------------------------------------------------------------------- %% TLS v1.1 suites suite_definition(?TLS_NULL_WITH_NULL_NULL) -> #{key_exchange => null, cipher => null, mac => null, prf => null}; %% RFC 5746 - Not a real cipher suite used to signal empty "renegotiation_info" extension %% to avoid handshake failure from old servers that do not ignore %% hello extension data as they should. suite_definition(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV) -> #{key_exchange => null, cipher => null, mac => null, prf => null}; suite_definition(?TLS_RSA_WITH_RC4_128_MD5) -> #{key_exchange => rsa, cipher => rc4_128, mac => md5, prf => default_prf}; suite_definition(?TLS_RSA_WITH_RC4_128_SHA) -> #{key_exchange => rsa, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_WITH_DES_CBC_SHA) -> #{key_exchange => rsa, cipher => des_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => rsa, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_DSS_WITH_DES_CBC_SHA) -> #{key_exchange => dhe_dss, cipher => des_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => dhe_dss, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_RSA_WITH_DES_CBC_SHA) -> #{key_exchange => dhe_rsa, cipher => des_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => dhe_rsa, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; %%% TSL V1.1 AES suites suite_definition(?TLS_RSA_WITH_AES_128_CBC_SHA) -> #{key_exchange => rsa, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_DSS_WITH_AES_128_CBC_SHA) -> #{key_exchange => dhe_dss, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_RSA_WITH_AES_128_CBC_SHA) -> #{key_exchange => dhe_rsa, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_WITH_AES_256_CBC_SHA) -> #{key_exchange => rsa, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_DSS_WITH_AES_256_CBC_SHA) -> #{key_exchange => dhe_dss, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_RSA_WITH_AES_256_CBC_SHA) -> #{key_exchange => dhe_rsa, cipher => aes_256_cbc, mac => sha, prf => default_prf}; %% TLS v1.2 suites %% suite_definition(?TLS_RSA_WITH_NULL_SHA) -> %% {rsa, null, sha, default_prf}; suite_definition(?TLS_RSA_WITH_AES_128_CBC_SHA256) -> #{key_exchange => rsa, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_RSA_WITH_AES_256_CBC_SHA256) -> #{key_exchange => rsa, cipher => aes_256_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_DHE_DSS_WITH_AES_128_CBC_SHA256) -> #{key_exchange => dhe_dss, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_DHE_RSA_WITH_AES_128_CBC_SHA256) -> #{key_exchange => dhe_rsa, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_DHE_DSS_WITH_AES_256_CBC_SHA256) -> #{key_exchange => dhe_dss, cipher => aes_256_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_DHE_RSA_WITH_AES_256_CBC_SHA256) -> #{key_exchange => dhe_rsa, cipher => aes_256_cbc, mac => sha256, prf => default_prf}; %% not defined YET: %% TLS_DH_DSS_WITH_AES_128_CBC_SHA256 DH_DSS AES_128_CBC SHA256 %% TLS_DH_RSA_WITH_AES_128_CBC_SHA256 DH_RSA AES_128_CBC SHA256 %% TLS_DH_DSS_WITH_AES_256_CBC_SHA256 DH_DSS AES_256_CBC SHA256 %% TLS_DH_RSA_WITH_AES_256_CBC_SHA256 DH_RSA AES_256_CBC SHA256 %%% DH-ANON deprecated by TLS spec and not available %%% by default, but good for testing purposes. suite_definition(?TLS_DH_anon_WITH_RC4_128_MD5) -> #{key_exchange => dh_anon, cipher => rc4_128, mac => md5, prf => default_prf}; suite_definition(?TLS_DH_anon_WITH_DES_CBC_SHA) -> #{key_exchange => dh_anon, cipher => des_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => dh_anon, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_DH_anon_WITH_AES_128_CBC_SHA) -> #{key_exchange => dh_anon, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DH_anon_WITH_AES_256_CBC_SHA) -> #{key_exchange => dh_anon, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DH_anon_WITH_AES_128_CBC_SHA256) -> #{key_exchange => dh_anon, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_DH_anon_WITH_AES_256_CBC_SHA256) -> #{key_exchange => dh_anon, cipher => aes_256_cbc, mac => sha256, prf => default_prf}; %%% PSK Cipher Suites RFC 4279 suite_definition(?TLS_PSK_WITH_RC4_128_SHA) -> #{key_exchange => psk, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_PSK_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => psk, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_PSK_WITH_AES_128_CBC_SHA) -> #{key_exchange => psk, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_PSK_WITH_AES_256_CBC_SHA) -> #{key_exchange => psk, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_RC4_128_SHA) -> #{key_exchange => dhe_psk, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => dhe_psk, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_AES_128_CBC_SHA) -> #{key_exchange => dhe_psk, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_AES_256_CBC_SHA) -> #{key_exchange => dhe_psk, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_RC4_128_SHA) -> #{key_exchange => rsa_psk, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => rsa_psk, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_AES_128_CBC_SHA) -> #{key_exchange => rsa_psk, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_AES_256_CBC_SHA) -> #{key_exchange => rsa_psk, cipher => aes_256_cbc, mac => sha, prf => default_prf}; %%% PSK NULL Cipher Suites RFC 4785 suite_definition(?TLS_PSK_WITH_NULL_SHA) -> #{key_exchange => psk, cipher => null, mac => sha, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_NULL_SHA) -> #{key_exchange => dhe_psk, cipher => null, mac => sha, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_NULL_SHA) -> #{key_exchange => rsa_psk, cipher => null, mac => sha, prf => default_prf}; %%% TLS 1.2 PSK Cipher Suites RFC 5487 suite_definition(?TLS_PSK_WITH_AES_128_GCM_SHA256) -> #{key_exchange => psk, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_PSK_WITH_AES_256_GCM_SHA384) -> #{key_exchange => psk, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_DHE_PSK_WITH_AES_128_GCM_SHA256) -> #{key_exchange => dhe_psk, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_DHE_PSK_WITH_AES_256_GCM_SHA384) -> #{key_exchange => dhe_psk, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256) -> #{key_exchange => rsa_psk, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384) -> #{key_exchange => rsa_psk, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_PSK_WITH_AES_128_CBC_SHA256) -> #{key_exchange => psk, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_PSK_WITH_AES_256_CBC_SHA384) -> #{key_exchange => psk, cipher => aes_256_cbc, mac => sha384, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_AES_128_CBC_SHA256) -> #{key_exchange => dhe_psk, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_AES_256_CBC_SHA384) -> #{key_exchange => dhe_psk, cipher => aes_256_cbc, mac => sha384, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_AES_128_CBC_SHA256) -> #{key_exchange => rsa_psk, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384) -> #{key_exchange => rsa_psk, cipher => aes_256_cbc, mac => sha384, prf => default_prf}; suite_definition(?TLS_PSK_WITH_NULL_SHA256) -> #{key_exchange => psk, cipher => null, mac => sha256, prf => default_prf}; suite_definition(?TLS_PSK_WITH_NULL_SHA384) -> #{key_exchange => psk, cipher => null, mac => sha384, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_NULL_SHA256) -> #{key_exchange => dhe_psk, cipher => null, mac => sha256, prf => default_prf}; suite_definition(?TLS_DHE_PSK_WITH_NULL_SHA384) -> #{key_exchange => dhe_psk, cipher => null, mac => sha384, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_NULL_SHA256) -> #{key_exchange => rsa_psk, cipher => null, mac => sha256, prf => default_prf}; suite_definition(?TLS_RSA_PSK_WITH_NULL_SHA384) -> #{key_exchange => rsa_psk, cipher => null, mac => sha384, prf => default_prf}; %%% ECDHE PSK Cipher Suites RFC 5489 suite_definition(?TLS_ECDHE_PSK_WITH_RC4_128_SHA) -> #{key_exchange => ecdhe_psk, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => ecdhe_psk, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA) -> #{key_exchange => ecdhe_psk, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA) -> #{key_exchange => ecdhe_psk, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256) -> #{key_exchange => ecdhe_psk, cipher => aes_128_cbc, mac => sha256, prf => default_prf}; suite_definition(?TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384) -> #{key_exchange => ecdhe_psk, cipher => aes_256_cbc, mac => sha384, prf => default_prf}; suite_definition(?TLS_ECDHE_PSK_WITH_NULL_SHA256) -> #{key_exchange => ecdhe_psk, cipher => null, mac => sha256, prf => default_prf}; suite_definition(?TLS_ECDHE_PSK_WITH_NULL_SHA384) -> #{key_exchange => ecdhe_psk, cipher => null, mac => sha384, prf => default_prf}; %%% ECDHE_PSK with AES-GCM and AES-CCM Cipher Suites, draft-ietf-tls-ecdhe-psk-aead-05 suite_definition(?TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256) -> #{key_exchange => ecdhe_psk, cipher => aes_128_gcm, mac => null, prf => sha256}; suite_definition(?TLS_ECDHE_PSK_WITH_AES_256_GCM_SHA384) -> #{key_exchange => ecdhe_psk, cipher => aes_256_gcm, mac => null, prf => sha384}; %% suite_definition(?TLS_ECDHE_PSK_WITH_AES_128_CCM_8_SHA256) -> %% #{key_exchange => ecdhe_psk, %% cipher => aes_128_ccm, %% mac => null, %% prf =>sha256}; %% suite_definition(?TLS_ECDHE_PSK_WITH_AES_128_CCM_SHA256) -> %% #{key_exchange => ecdhe_psk, %% cipher => aes_256_ccm, %% mac => null, %% prf => sha256}; %%% SRP Cipher Suites RFC 5054 suite_definition(?TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => srp_anon, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => srp_rsa, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => srp_dss, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_WITH_AES_128_CBC_SHA) -> #{key_exchange => srp_anon, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA) -> #{key_exchange => srp_rsa, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA) -> #{key_exchange => srp_dss, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_WITH_AES_256_CBC_SHA) -> #{key_exchange => srp_anon, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA) -> #{key_exchange => srp_rsa, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA) -> #{key_exchange => srp_dss, cipher => aes_256_cbc, mac => sha, prf => default_prf}; %% RFC 4492 EC TLS suites suite_definition(?TLS_ECDH_ECDSA_WITH_NULL_SHA) -> #{key_exchange => ecdh_ecdsa, cipher => null, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_ECDSA_WITH_RC4_128_SHA) -> #{key_exchange => ecdh_ecdsa, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => ecdh_ecdsa, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA) -> #{key_exchange => ecdh_ecdsa, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA) -> #{key_exchange => ecdh_ecdsa, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_ECDSA_WITH_NULL_SHA) -> #{key_exchange => ecdhe_ecdsa, cipher => null, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA) -> #{key_exchange => ecdhe_ecdsa, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => ecdhe_ecdsa, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA) -> #{key_exchange => ecdhe_ecdsa, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA) -> #{key_exchange => ecdhe_ecdsa, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_RSA_WITH_NULL_SHA) -> #{key_exchange => ecdh_rsa, cipher => null, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_RSA_WITH_RC4_128_SHA) -> #{key_exchange => ecdh_rsa, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => ecdh_rsa, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA) -> #{key_exchange => ecdh_rsa, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA) -> #{key_exchange => ecdh_rsa, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_RSA_WITH_NULL_SHA) -> #{key_exchange => ecdhe_rsa, cipher => null, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_RSA_WITH_RC4_128_SHA) -> #{key_exchange => ecdhe_rsa, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => ecdhe_rsa, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) -> #{key_exchange => ecdhe_rsa, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA) -> #{key_exchange => ecdhe_rsa, cipher => aes_256_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_anon_WITH_NULL_SHA) -> #{key_exchange => ecdh_anon, cipher => null, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_anon_WITH_RC4_128_SHA) -> #{key_exchange => ecdh_anon, cipher => rc4_128, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA) -> #{key_exchange => ecdh_anon, cipher => '3des_ede_cbc', mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_anon_WITH_AES_128_CBC_SHA) -> #{key_exchange => ecdh_anon, cipher => aes_128_cbc, mac => sha, prf => default_prf}; suite_definition(?TLS_ECDH_anon_WITH_AES_256_CBC_SHA) -> #{key_exchange => ecdh_anon, cipher => aes_256_cbc, mac => sha, prf => default_prf}; %% RFC 5289 EC TLS suites suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256) -> #{key_exchange => ecdhe_ecdsa, cipher => aes_128_cbc, mac => sha256, prf => sha256}; suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384) -> #{key_exchange => ecdhe_ecdsa, cipher => aes_256_cbc, mac => sha384, prf => sha384}; suite_definition(?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256) -> #{key_exchange => ecdh_ecdsa, cipher => aes_128_cbc, mac => sha256, prf => sha256}; suite_definition(?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384) -> #{key_exchange => ecdh_ecdsa, cipher => aes_256_cbc, mac => sha384, prf => sha384}; suite_definition(?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) -> #{key_exchange => ecdhe_rsa, cipher => aes_128_cbc, mac => sha256, prf => sha256}; suite_definition(?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) -> #{key_exchange => ecdhe_rsa, cipher => aes_256_cbc, mac => sha384, prf => sha384}; suite_definition(?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256) -> #{key_exchange => ecdh_rsa, cipher => aes_128_cbc, mac => sha256, prf => sha256}; suite_definition(?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384) -> #{key_exchange => ecdh_rsa, cipher => aes_256_cbc, mac => sha384, prf => sha384}; %% RFC 5288 AES-GCM Cipher Suites suite_definition(?TLS_RSA_WITH_AES_128_GCM_SHA256) -> #{key_exchange => rsa, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_RSA_WITH_AES_256_GCM_SHA384) -> #{key_exchange => rsa, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256) -> #{key_exchange => dhe_rsa, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384) -> #{key_exchange => dhe_rsa, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_DH_RSA_WITH_AES_128_GCM_SHA256) -> #{key_exchange => dh_rsa, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_DH_RSA_WITH_AES_256_GCM_SHA384) -> #{key_exchange => dh_rsa, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256) -> #{key_exchange => dhe_dss, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384) -> #{key_exchange => dhe_dss, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_DH_DSS_WITH_AES_128_GCM_SHA256) -> #{key_exchange => dh_dss, cipher => aes_128_gcm, mac => null, prf => sha256}; suite_definition(?TLS_DH_DSS_WITH_AES_256_GCM_SHA384) -> #{key_exchange => dh_dss, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_DH_anon_WITH_AES_128_GCM_SHA256) -> #{key_exchange => dh_anon, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_DH_anon_WITH_AES_256_GCM_SHA384) -> #{key_exchange => dh_anon, cipher => aes_256_gcm, mac => aead, prf => sha384}; %% RFC 5289 ECC AES-GCM Cipher Suites suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256) -> #{key_exchange => ecdhe_ecdsa, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) -> #{key_exchange => ecdhe_ecdsa, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256) -> #{key_exchange => ecdh_ecdsa, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384) -> #{key_exchange => ecdh_ecdsa, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) -> #{key_exchange => ecdhe_rsa, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) -> #{key_exchange => ecdhe_rsa, cipher => aes_256_gcm, mac => aead, prf => sha384}; suite_definition(?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256) -> #{key_exchange => ecdh_rsa, cipher => aes_128_gcm, mac => aead, prf => sha256}; suite_definition(?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384) -> #{key_exchange => ecdh_rsa, cipher => aes_256_gcm, mac => aead, prf => sha384}; %% draft-agl-tls-chacha20poly1305-04 Chacha20/Poly1305 Suites suite_definition(?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256) -> #{key_exchange => ecdhe_rsa, cipher => chacha20_poly1305, mac => aead, prf => sha256}; suite_definition(?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256) -> #{key_exchange => ecdhe_ecdsa, cipher => chacha20_poly1305, mac => aead, prf => sha256}; suite_definition(?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256) -> #{key_exchange => dhe_rsa, cipher => chacha20_poly1305, mac => aead, prf => sha256}. %%-------------------------------------------------------------------- -spec erl_suite_definition(cipher_suite() | erl_cipher_suite()) -> old_erl_cipher_suite(). %% %% Description: Return erlang cipher suite definition. Filters last value %% for now (compatibility reasons). %%-------------------------------------------------------------------- erl_suite_definition(Bin) when is_binary(Bin) -> erl_suite_definition(suite_definition(Bin)); erl_suite_definition(#{key_exchange := KeyExchange, cipher := Cipher, mac := Hash, prf := Prf}) -> case Prf of default_prf -> {KeyExchange, Cipher, Hash}; _ -> {KeyExchange, Cipher, Hash, Prf} end. %%-------------------------------------------------------------------- -spec suite(erl_cipher_suite()) -> cipher_suite(). %% %% Description: Return TLS cipher suite definition. %%-------------------------------------------------------------------- %% TLS v1.1 suites suite(#{key_exchange := rsa, cipher := rc4_128, mac := md5}) -> ?TLS_RSA_WITH_RC4_128_MD5; suite(#{key_exchange := rsa, cipher := rc4_128, mac := sha}) -> ?TLS_RSA_WITH_RC4_128_SHA; suite(#{key_exchange := rsa, cipher := des_cbc, mac := sha}) -> ?TLS_RSA_WITH_DES_CBC_SHA; suite(#{key_exchange := rsa, cipher :='3des_ede_cbc', mac := sha}) -> ?TLS_RSA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := dhe_dss, cipher:= des_cbc, mac := sha}) -> ?TLS_DHE_DSS_WITH_DES_CBC_SHA; suite(#{key_exchange := dhe_dss, cipher:= '3des_ede_cbc', mac := sha}) -> ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := dhe_rsa, cipher:= des_cbc, mac := sha}) -> ?TLS_DHE_RSA_WITH_DES_CBC_SHA; suite(#{key_exchange := dhe_rsa, cipher:= '3des_ede_cbc', mac := sha}) -> ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := dh_anon, cipher:= rc4_128, mac := md5}) -> ?TLS_DH_anon_WITH_RC4_128_MD5; suite(#{key_exchange := dh_anon, cipher:= des_cbc, mac := sha}) -> ?TLS_DH_anon_WITH_DES_CBC_SHA; suite(#{key_exchange := dh_anon, cipher:= '3des_ede_cbc', mac := sha}) -> ?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA; %%% TSL V1.1 AES suites suite(#{key_exchange := rsa, cipher := aes_128_cbc, mac := sha}) -> ?TLS_RSA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := dhe_dss, cipher := aes_128_cbc, mac := sha}) -> ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA; suite(#{key_exchange := dhe_rsa, cipher := aes_128_cbc, mac := sha}) -> ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := dh_anon, cipher := aes_128_cbc, mac := sha}) -> ?TLS_DH_anon_WITH_AES_128_CBC_SHA; suite(#{key_exchange := rsa, cipher := aes_256_cbc, mac := sha}) -> ?TLS_RSA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := dhe_dss, cipher := aes_256_cbc, mac := sha}) -> ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA; suite(#{key_exchange := dhe_rsa, cipher := aes_256_cbc, mac := sha}) -> ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := dh_anon, cipher := aes_256_cbc, mac := sha}) -> ?TLS_DH_anon_WITH_AES_256_CBC_SHA; %% TLS v1.2 suites suite(#{key_exchange := rsa, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_RSA_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := rsa, cipher := aes_256_cbc, mac := sha256}) -> ?TLS_RSA_WITH_AES_256_CBC_SHA256; suite(#{key_exchange := dhe_dss, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := dhe_rsa, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := dhe_dss, cipher := aes_256_cbc, mac := sha256}) -> ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA256; suite(#{key_exchange := dhe_rsa, cipher := aes_256_cbc, mac := sha256}) -> ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA256; suite(#{key_exchange := dh_anon, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_DH_anon_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := dh_anon, cipher := aes_256_cbc, mac := sha256}) -> ?TLS_DH_anon_WITH_AES_256_CBC_SHA256; %%% PSK Cipher Suites RFC 4279 suite(#{key_exchange := psk, cipher := rc4_128, mac := sha}) -> ?TLS_PSK_WITH_RC4_128_SHA; suite(#{key_exchange := psk, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_PSK_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := psk, cipher := aes_128_cbc, mac := sha}) -> ?TLS_PSK_WITH_AES_128_CBC_SHA; suite(#{key_exchange := psk, cipher := aes_256_cbc, mac := sha}) -> ?TLS_PSK_WITH_AES_256_CBC_SHA; suite(#{key_exchange := dhe_psk, cipher := rc4_128, mac := sha}) -> ?TLS_DHE_PSK_WITH_RC4_128_SHA; suite(#{key_exchange := dhe_psk, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := dhe_psk, cipher := aes_128_cbc, mac := sha}) -> ?TLS_DHE_PSK_WITH_AES_128_CBC_SHA; suite(#{key_exchange := dhe_psk, cipher := aes_256_cbc, mac := sha}) -> ?TLS_DHE_PSK_WITH_AES_256_CBC_SHA; suite(#{key_exchange := rsa_psk, cipher := rc4_128, mac := sha}) -> ?TLS_RSA_PSK_WITH_RC4_128_SHA; suite(#{key_exchange := rsa_psk, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := rsa_psk, cipher := aes_128_cbc, mac := sha}) -> ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA; suite(#{key_exchange := rsa_psk, cipher := aes_256_cbc, mac := sha}) -> ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA; %%% PSK NULL Cipher Suites RFC 4785 suite(#{key_exchange := psk, cipher := null, mac := sha}) -> ?TLS_PSK_WITH_NULL_SHA; suite(#{key_exchange := dhe_psk, cipher := null, mac := sha}) -> ?TLS_DHE_PSK_WITH_NULL_SHA; suite(#{key_exchange := rsa_psk, cipher := null, mac := sha}) -> ?TLS_RSA_PSK_WITH_NULL_SHA; %%% TLS 1.2 PSK Cipher Suites RFC 5487 suite(#{key_exchange := psk, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_PSK_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := psk, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_PSK_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := dhe_psk, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_DHE_PSK_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := dhe_psk, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_DHE_PSK_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := rsa_psk, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := rsa_psk, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := psk, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_PSK_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := psk, cipher := aes_256_cbc, mac := sha384}) -> ?TLS_PSK_WITH_AES_256_CBC_SHA384; suite(#{key_exchange := dhe_psk, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_DHE_PSK_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := dhe_psk, cipher := aes_256_cbc, mac := sha384}) -> ?TLS_DHE_PSK_WITH_AES_256_CBC_SHA384; suite(#{key_exchange := rsa_psk, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := rsa_psk, cipher := aes_256_cbc, mac := sha384}) -> ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384; suite(#{key_exchange := psk, cipher := null, mac := sha256}) -> ?TLS_PSK_WITH_NULL_SHA256; suite(#{key_exchange := psk, cipher := null, mac := sha384}) -> ?TLS_PSK_WITH_NULL_SHA384; suite(#{key_exchange := dhe_psk, cipher := null, mac := sha256}) -> ?TLS_DHE_PSK_WITH_NULL_SHA256; suite(#{key_exchange := dhe_psk, cipher := null, mac := sha384}) -> ?TLS_DHE_PSK_WITH_NULL_SHA384; suite(#{key_exchange := rsa_psk, cipher := null, mac := sha256}) -> ?TLS_RSA_PSK_WITH_NULL_SHA256; suite(#{key_exchange := rsa_psk, cipher := null, mac := sha384}) -> ?TLS_RSA_PSK_WITH_NULL_SHA384; %%% ECDHE PSK Cipher Suites RFC 5489 suite(#{key_exchange := ecdhe_psk, cipher := rc4_128, mac := sha}) -> ?TLS_ECDHE_PSK_WITH_RC4_128_SHA; suite(#{key_exchange := ecdhe_psk, cipher :='3des_ede_cbc', mac := sha}) -> ?TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := ecdhe_psk, cipher := aes_128_cbc, mac := sha}) -> ?TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA; suite(#{key_exchange := ecdhe_psk, cipher := aes_256_cbc, mac := sha}) -> ?TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA; suite(#{key_exchange := ecdhe_psk, cipher := aes_128_cbc, mac := sha256}) -> ?TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := ecdhe_psk, cipher := aes_256_cbc, mac := sha384}) -> ?TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384; suite(#{key_exchange := ecdhe_psk, cipher := null, mac := sha256}) -> ?TLS_ECDHE_PSK_WITH_NULL_SHA256; suite(#{key_exchange := ecdhe_psk, cipher := null, mac := sha384}) -> ?TLS_ECDHE_PSK_WITH_NULL_SHA384; %%% ECDHE_PSK with AES-GCM and AES-CCM Cipher Suites, draft-ietf-tls-ecdhe-psk-aead-05 suite(#{key_exchange := ecdhe_psk, cipher := aes_128_gcm, mac := null, prf := sha256}) -> ?TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := ecdhe_psk, cipher := aes_256_gcm, mac := null, prf := sha384}) -> ?TLS_ECDHE_PSK_WITH_AES_256_GCM_SHA384; %% suite(#{key_exchange := ecdhe_psk, %% cipher := aes_128_ccm, %% mac := null, %% prf := sha256}) -> %% ?TLS_ECDHE_PSK_WITH_AES_128_CCM_8_SHA256; %% suite(#{key_exchange := ecdhe_psk, %% cipher := aes_256_ccm, %% mac := null, %% prf := sha256}) -> %% ?TLS_ECDHE_PSK_WITH_AES_128_CCM_SHA256; %%% SRP Cipher Suites RFC 5054 suite(#{key_exchange := srp_anon, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := srp_rsa, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := srp_dss, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := srp_anon, cipher := aes_128_cbc, mac := sha}) -> ?TLS_SRP_SHA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := srp_rsa, cipher := aes_128_cbc, mac := sha}) -> ?TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := srp_dss, cipher := aes_128_cbc, mac := sha}) -> ?TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA; suite(#{key_exchange := srp_anon, cipher := aes_256_cbc, mac := sha}) -> ?TLS_SRP_SHA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := srp_rsa, cipher := aes_256_cbc, mac := sha}) -> ?TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := srp_dss, cipher := aes_256_cbc, mac := sha}) -> ?TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA; %%% RFC 4492 EC TLS suites suite(#{key_exchange := ecdh_ecdsa, cipher := null, mac := sha}) -> ?TLS_ECDH_ECDSA_WITH_NULL_SHA; suite(#{key_exchange := ecdh_ecdsa, cipher := rc4_128, mac := sha}) -> ?TLS_ECDH_ECDSA_WITH_RC4_128_SHA; suite(#{key_exchange := ecdh_ecdsa, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := ecdh_ecdsa, cipher := aes_128_cbc, mac := sha}) -> ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := ecdh_ecdsa, cipher := aes_256_cbc, mac := sha}) -> ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := ecdhe_ecdsa, cipher := null, mac := sha}) -> ?TLS_ECDHE_ECDSA_WITH_NULL_SHA; suite(#{key_exchange := ecdhe_ecdsa, cipher := rc4_128, mac := sha}) -> ?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA; suite(#{key_exchange := ecdhe_ecdsa, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := ecdhe_ecdsa, cipher := aes_128_cbc, mac := sha}) -> ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := ecdhe_ecdsa, cipher := aes_256_cbc, mac := sha}) -> ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := ecdh_rsa, cipher := null, mac := sha}) -> ?TLS_ECDH_RSA_WITH_NULL_SHA; suite(#{key_exchange := ecdh_rsa, cipher := rc4_128, mac := sha}) -> ?TLS_ECDH_RSA_WITH_RC4_128_SHA; suite(#{key_exchange := ecdh_rsa, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := ecdh_rsa, cipher := aes_128_cbc, mac := sha}) -> ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := ecdh_rsa, cipher := aes_256_cbc, mac := sha}) -> ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := ecdhe_rsa, cipher := null, mac := sha}) -> ?TLS_ECDHE_RSA_WITH_NULL_SHA; suite(#{key_exchange := ecdhe_rsa, cipher := rc4_128, mac := sha}) -> ?TLS_ECDHE_RSA_WITH_RC4_128_SHA; suite(#{key_exchange := ecdhe_rsa, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := ecdhe_rsa, cipher := aes_128_cbc, mac := sha}) -> ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA; suite(#{key_exchange := ecdhe_rsa, cipher := aes_256_cbc, mac := sha}) -> ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA; suite(#{key_exchange := ecdh_anon, cipher := null, mac := sha}) -> ?TLS_ECDH_anon_WITH_NULL_SHA; suite(#{key_exchange := ecdh_anon, cipher := rc4_128, mac := sha}) -> ?TLS_ECDH_anon_WITH_RC4_128_SHA; suite(#{key_exchange := ecdh_anon, cipher := '3des_ede_cbc', mac := sha}) -> ?TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA; suite(#{key_exchange := ecdh_anon, cipher := aes_128_cbc, mac := sha}) -> ?TLS_ECDH_anon_WITH_AES_128_CBC_SHA; suite(#{key_exchange := ecdh_anon, cipher := aes_256_cbc, mac := sha}) -> ?TLS_ECDH_anon_WITH_AES_256_CBC_SHA; %%% RFC 5289 EC TLS suites suite(#{key_exchange := ecdhe_ecdsa, cipher := aes_128_cbc, mac:= sha256, prf := sha256}) -> ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := ecdhe_ecdsa, cipher := aes_256_cbc, mac := sha384, prf := sha384}) -> ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384; suite(#{key_exchange := ecdh_ecdsa, cipher := aes_128_cbc, mac := sha256, prf := sha256}) -> ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := ecdh_ecdsa, cipher := aes_256_cbc, mac := sha384, prf := sha384}) -> ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384; suite(#{key_exchange := ecdhe_rsa, cipher := aes_128_cbc, mac := sha256, prf := sha256}) -> ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := ecdhe_rsa, cipher := aes_256_cbc, mac := sha384, prf := sha384}) -> ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384; suite(#{key_exchange := ecdh_rsa, cipher := aes_128_cbc, mac := sha256, prf := sha256}) -> ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256; suite(#{key_exchange := ecdh_rsa, cipher := aes_256_cbc, mac := sha384, prf := sha384}) -> ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384; %% RFC 5288 AES-GCM Cipher Suites suite(#{key_exchange := rsa, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_RSA_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := rsa, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_RSA_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := dhe_rsa, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := dhe_rsa, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := dh_rsa, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_DH_RSA_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := dh_rsa, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_DH_RSA_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := dhe_dss, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := dhe_dss, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := dh_dss, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_DH_DSS_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := dh_dss, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_DH_DSS_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := dh_anon, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_DH_anon_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := dh_anon, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_DH_anon_WITH_AES_256_GCM_SHA384; %% RFC 5289 ECC AES-GCM Cipher Suites suite(#{key_exchange := ecdhe_ecdsa, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := ecdhe_ecdsa, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := ecdh_ecdsa, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := ecdh_ecdsa, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := ecdhe_rsa, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := ecdhe_rsa, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384; suite(#{key_exchange := ecdh_rsa, cipher := aes_128_gcm, mac := aead, prf := sha256}) -> ?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256; suite(#{key_exchange := ecdh_rsa, cipher := aes_256_gcm, mac := aead, prf := sha384}) -> ?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384; %% draft-agl-tls-chacha20poly1305-04 Chacha20/Poly1305 Suites suite(#{key_exchange := ecdhe_rsa, cipher := chacha20_poly1305, mac := aead, prf := sha256}) -> ?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256; suite(#{key_exchange := ecdhe_ecdsa, cipher := chacha20_poly1305, mac := aead, prf := sha256}) -> ?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256; suite(#{key_exchange := dhe_rsa, cipher := chacha20_poly1305, mac := aead, prf := sha256}) -> ?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256. %%-------------------------------------------------------------------- -spec openssl_suite(openssl_cipher_suite()) -> cipher_suite(). %% %% Description: Return TLS cipher suite definition. %%-------------------------------------------------------------------- %% translate constants <-> openssl-strings openssl_suite("DHE-RSA-AES256-SHA256") -> ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA256; openssl_suite("DHE-DSS-AES256-SHA256") -> ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA256; openssl_suite("AES256-SHA256") -> ?TLS_RSA_WITH_AES_256_CBC_SHA256; openssl_suite("DHE-RSA-AES128-SHA256") -> ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA256; openssl_suite("DHE-DSS-AES128-SHA256") -> ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA256; openssl_suite("AES128-SHA256") -> ?TLS_RSA_WITH_AES_128_CBC_SHA256; openssl_suite("DHE-RSA-AES256-SHA") -> ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA; openssl_suite("DHE-DSS-AES256-SHA") -> ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA; openssl_suite("AES256-SHA") -> ?TLS_RSA_WITH_AES_256_CBC_SHA; openssl_suite("EDH-RSA-DES-CBC3-SHA") -> ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA; openssl_suite("EDH-DSS-DES-CBC3-SHA") -> ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA; openssl_suite("DES-CBC3-SHA") -> ?TLS_RSA_WITH_3DES_EDE_CBC_SHA; openssl_suite("DHE-RSA-AES128-SHA") -> ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA; openssl_suite("DHE-DSS-AES128-SHA") -> ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA; openssl_suite("AES128-SHA") -> ?TLS_RSA_WITH_AES_128_CBC_SHA; openssl_suite("RC4-SHA") -> ?TLS_RSA_WITH_RC4_128_SHA; openssl_suite("RC4-MD5") -> ?TLS_RSA_WITH_RC4_128_MD5; openssl_suite("EDH-RSA-DES-CBC-SHA") -> ?TLS_DHE_RSA_WITH_DES_CBC_SHA; openssl_suite("DES-CBC-SHA") -> ?TLS_RSA_WITH_DES_CBC_SHA; %%% SRP Cipher Suites RFC 5054 openssl_suite("SRP-DSS-AES-256-CBC-SHA") -> ?TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA; openssl_suite("SRP-RSA-AES-256-CBC-SHA") -> ?TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA; openssl_suite("SRP-DSS-3DES-EDE-CBC-SHA") -> ?TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA; openssl_suite("SRP-RSA-3DES-EDE-CBC-SHA") -> ?TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA; openssl_suite("SRP-DSS-AES-128-CBC-SHA") -> ?TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA; openssl_suite("SRP-RSA-AES-128-CBC-SHA") -> ?TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA; %% RFC 4492 EC TLS suites openssl_suite("ECDH-ECDSA-RC4-SHA") -> ?TLS_ECDH_ECDSA_WITH_RC4_128_SHA; openssl_suite("ECDH-ECDSA-DES-CBC3-SHA") -> ?TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA; openssl_suite("ECDH-ECDSA-AES128-SHA") -> ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA; openssl_suite("ECDH-ECDSA-AES256-SHA") -> ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA; openssl_suite("ECDHE-ECDSA-RC4-SHA") -> ?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA; openssl_suite("ECDHE-ECDSA-DES-CBC3-SHA") -> ?TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA; openssl_suite("ECDHE-ECDSA-AES128-SHA") -> ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA; openssl_suite("ECDHE-ECDSA-AES256-SHA") -> ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA; openssl_suite("ECDHE-RSA-RC4-SHA") -> ?TLS_ECDHE_RSA_WITH_RC4_128_SHA; openssl_suite("ECDHE-RSA-DES-CBC3-SHA") -> ?TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA; openssl_suite("ECDHE-RSA-AES128-SHA") -> ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA; openssl_suite("ECDHE-RSA-AES256-SHA") -> ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA; openssl_suite("ECDH-RSA-RC4-SHA") -> ?TLS_ECDH_RSA_WITH_RC4_128_SHA; openssl_suite("ECDH-RSA-DES-CBC3-SHA") -> ?TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA; openssl_suite("ECDH-RSA-AES128-SHA") -> ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA; openssl_suite("ECDH-RSA-AES256-SHA") -> ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA; %% RFC 5289 EC TLS suites openssl_suite("ECDHE-ECDSA-AES128-SHA256") -> ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256; openssl_suite("ECDHE-ECDSA-AES256-SHA384") -> ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384; openssl_suite("ECDH-ECDSA-AES128-SHA256") -> ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256; openssl_suite("ECDH-ECDSA-AES256-SHA384") -> ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384; openssl_suite("ECDHE-RSA-AES128-SHA256") -> ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256; openssl_suite("ECDHE-RSA-AES256-SHA384") -> ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384; openssl_suite("ECDH-RSA-AES128-SHA256") -> ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256; openssl_suite("ECDH-RSA-AES256-SHA384") -> ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384; %% RFC 5288 AES-GCM Cipher Suites openssl_suite("AES128-GCM-SHA256") -> ?TLS_RSA_WITH_AES_128_GCM_SHA256; openssl_suite("AES256-GCM-SHA384") -> ?TLS_RSA_WITH_AES_256_GCM_SHA384; openssl_suite("DHE-RSA-AES128-GCM-SHA256") -> ?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256; openssl_suite("DHE-RSA-AES256-GCM-SHA384") -> ?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384; openssl_suite("DH-RSA-AES128-GCM-SHA256") -> ?TLS_DH_RSA_WITH_AES_128_GCM_SHA256; openssl_suite("DH-RSA-AES256-GCM-SHA384") -> ?TLS_DH_RSA_WITH_AES_256_GCM_SHA384; openssl_suite("DHE-DSS-AES128-GCM-SHA256") -> ?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256; openssl_suite("DHE-DSS-AES256-GCM-SHA384") -> ?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384; openssl_suite("DH-DSS-AES128-GCM-SHA256") -> ?TLS_DH_DSS_WITH_AES_128_GCM_SHA256; openssl_suite("DH-DSS-AES256-GCM-SHA384") -> ?TLS_DH_DSS_WITH_AES_256_GCM_SHA384; %% RFC 5289 ECC AES-GCM Cipher Suites openssl_suite("ECDHE-ECDSA-AES128-GCM-SHA256") -> ?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256; openssl_suite("ECDHE-ECDSA-AES256-GCM-SHA384") -> ?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384; openssl_suite("ECDH-ECDSA-AES128-GCM-SHA256") -> ?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256; openssl_suite("ECDH-ECDSA-AES256-GCM-SHA384") -> ?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384; openssl_suite("ECDHE-RSA-AES128-GCM-SHA256") -> ?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256; openssl_suite("ECDHE-RSA-AES256-GCM-SHA384") -> ?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384; openssl_suite("ECDH-RSA-AES128-GCM-SHA256") -> ?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256; openssl_suite("ECDH-RSA-AES256-GCM-SHA384") -> ?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384. %%-------------------------------------------------------------------- -spec openssl_suite_name(cipher_suite()) -> openssl_cipher_suite() | erl_cipher_suite(). %% %% Description: Return openssl cipher suite name if possible %%------------------------------------------------------------------- openssl_suite_name(?TLS_DHE_RSA_WITH_AES_256_CBC_SHA) -> "DHE-RSA-AES256-SHA"; openssl_suite_name(?TLS_DHE_DSS_WITH_AES_256_CBC_SHA) -> "DHE-DSS-AES256-SHA"; openssl_suite_name(?TLS_RSA_WITH_AES_256_CBC_SHA) -> "AES256-SHA"; openssl_suite_name(?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA) -> "EDH-RSA-DES-CBC3-SHA"; openssl_suite_name(?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA) -> "EDH-DSS-DES-CBC3-SHA"; openssl_suite_name(?TLS_RSA_WITH_3DES_EDE_CBC_SHA) -> "DES-CBC3-SHA"; openssl_suite_name( ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA) -> "DHE-RSA-AES128-SHA"; openssl_suite_name(?TLS_DHE_DSS_WITH_AES_128_CBC_SHA) -> "DHE-DSS-AES128-SHA"; openssl_suite_name(?TLS_RSA_WITH_AES_128_CBC_SHA) -> "AES128-SHA"; openssl_suite_name(?TLS_RSA_WITH_RC4_128_SHA) -> "RC4-SHA"; openssl_suite_name(?TLS_RSA_WITH_RC4_128_MD5) -> "RC4-MD5"; openssl_suite_name(?TLS_DHE_RSA_WITH_DES_CBC_SHA) -> "EDH-RSA-DES-CBC-SHA"; openssl_suite_name(?TLS_RSA_WITH_DES_CBC_SHA) -> "DES-CBC-SHA"; openssl_suite_name(?TLS_RSA_WITH_NULL_SHA256) -> "NULL-SHA256"; openssl_suite_name(?TLS_RSA_WITH_AES_128_CBC_SHA256) -> "AES128-SHA256"; openssl_suite_name(?TLS_RSA_WITH_AES_256_CBC_SHA256) -> "AES256-SHA256"; openssl_suite_name(?TLS_DH_DSS_WITH_AES_128_CBC_SHA256) -> "DH-DSS-AES128-SHA256"; openssl_suite_name(?TLS_DH_RSA_WITH_AES_128_CBC_SHA256) -> "DH-RSA-AES128-SHA256"; openssl_suite_name(?TLS_DHE_DSS_WITH_AES_128_CBC_SHA256) -> "DHE-DSS-AES128-SHA256"; openssl_suite_name(?TLS_DHE_RSA_WITH_AES_128_CBC_SHA256) -> "DHE-RSA-AES128-SHA256"; openssl_suite_name(?TLS_DH_DSS_WITH_AES_256_CBC_SHA256) -> "DH-DSS-AES256-SHA256"; openssl_suite_name(?TLS_DH_RSA_WITH_AES_256_CBC_SHA256) -> "DH-RSA-AES256-SHA256"; openssl_suite_name(?TLS_DHE_DSS_WITH_AES_256_CBC_SHA256) -> "DHE-DSS-AES256-SHA256"; openssl_suite_name(?TLS_DHE_RSA_WITH_AES_256_CBC_SHA256) -> "DHE-RSA-AES256-SHA256"; %%% PSK Cipher Suites RFC 4279 openssl_suite_name(?TLS_PSK_WITH_AES_256_CBC_SHA) -> "PSK-AES256-CBC-SHA"; openssl_suite_name(?TLS_PSK_WITH_3DES_EDE_CBC_SHA) -> "PSK-3DES-EDE-CBC-SHA"; openssl_suite_name(?TLS_PSK_WITH_AES_128_CBC_SHA) -> "PSK-AES128-CBC-SHA"; openssl_suite_name(?TLS_PSK_WITH_RC4_128_SHA) -> "PSK-RC4-SHA"; %%% SRP Cipher Suites RFC 5054 openssl_suite_name(?TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA) -> "SRP-RSA-3DES-EDE-CBC-SHA"; openssl_suite_name(?TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA) -> "SRP-DSS-3DES-EDE-CBC-SHA"; openssl_suite_name(?TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA) -> "SRP-RSA-AES-128-CBC-SHA"; openssl_suite_name(?TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA) -> "SRP-DSS-AES-128-CBC-SHA"; openssl_suite_name(?TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA) -> "SRP-RSA-AES-256-CBC-SHA"; openssl_suite_name(?TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA) -> "SRP-DSS-AES-256-CBC-SHA"; %% RFC 4492 EC TLS suites openssl_suite_name(?TLS_ECDH_ECDSA_WITH_RC4_128_SHA) -> "ECDH-ECDSA-RC4-SHA"; openssl_suite_name(?TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA) -> "ECDH-ECDSA-DES-CBC3-SHA"; openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA) -> "ECDH-ECDSA-AES128-SHA"; openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA) -> "ECDH-ECDSA-AES256-SHA"; openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA) -> "ECDHE-ECDSA-RC4-SHA"; openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA) -> "ECDHE-ECDSA-DES-CBC3-SHA"; openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA) -> "ECDHE-ECDSA-AES128-SHA"; openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA) -> "ECDHE-ECDSA-AES256-SHA"; openssl_suite_name(?TLS_ECDH_RSA_WITH_RC4_128_SHA) -> "ECDH-RSA-RC4-SHA"; openssl_suite_name(?TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA) -> "ECDH-RSA-DES-CBC3-SHA"; openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA) -> "ECDH-RSA-AES128-SHA"; openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA) -> "ECDH-RSA-AES256-SHA"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_RC4_128_SHA) -> "ECDHE-RSA-RC4-SHA"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA) -> "ECDHE-RSA-DES-CBC3-SHA"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) -> "ECDHE-RSA-AES128-SHA"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA) -> "ECDHE-RSA-AES256-SHA"; %% RFC 5289 EC TLS suites openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256) -> "ECDHE-ECDSA-AES128-SHA256"; openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384) -> "ECDHE-ECDSA-AES256-SHA384"; openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256) -> "ECDH-ECDSA-AES128-SHA256"; openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384) -> "ECDH-ECDSA-AES256-SHA384"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) -> "ECDHE-RSA-AES128-SHA256"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) -> "ECDHE-RSA-AES256-SHA384"; openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256) -> "ECDH-RSA-AES128-SHA256"; openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384) -> "ECDH-RSA-AES256-SHA384"; %% RFC 5288 AES-GCM Cipher Suites openssl_suite_name(?TLS_RSA_WITH_AES_128_GCM_SHA256) -> "AES128-GCM-SHA256"; openssl_suite_name(?TLS_RSA_WITH_AES_256_GCM_SHA384) -> "AES256-GCM-SHA384"; openssl_suite_name(?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256) -> "DHE-RSA-AES128-GCM-SHA256"; openssl_suite_name(?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384) -> "DHE-RSA-AES256-GCM-SHA384"; openssl_suite_name(?TLS_DH_RSA_WITH_AES_128_GCM_SHA256) -> "DH-RSA-AES128-GCM-SHA256"; openssl_suite_name(?TLS_DH_RSA_WITH_AES_256_GCM_SHA384) -> "DH-RSA-AES256-GCM-SHA384"; openssl_suite_name(?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256) -> "DHE-DSS-AES128-GCM-SHA256"; openssl_suite_name(?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384) -> "DHE-DSS-AES256-GCM-SHA384"; openssl_suite_name(?TLS_DH_DSS_WITH_AES_128_GCM_SHA256) -> "DH-DSS-AES128-GCM-SHA256"; openssl_suite_name(?TLS_DH_DSS_WITH_AES_256_GCM_SHA384) -> "DH-DSS-AES256-GCM-SHA384"; %% RFC 5289 ECC AES-GCM Cipher Suites openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256) -> "ECDHE-ECDSA-AES128-GCM-SHA256"; openssl_suite_name(?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) -> "ECDHE-ECDSA-AES256-GCM-SHA384"; openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256) -> "ECDH-ECDSA-AES128-GCM-SHA256"; openssl_suite_name(?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384) -> "ECDH-ECDSA-AES256-GCM-SHA384"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) -> "ECDHE-RSA-AES128-GCM-SHA256"; openssl_suite_name(?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) -> "ECDHE-RSA-AES256-GCM-SHA384"; openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256) -> "ECDH-RSA-AES128-GCM-SHA256"; openssl_suite_name(?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384) -> "ECDH-RSA-AES256-GCM-SHA384"; %% No oppenssl name openssl_suite_name(Cipher) -> suite_definition(Cipher). %%-------------------------------------------------------------------- -spec filter(undefined | binary(), [cipher_suite()]) -> [cipher_suite()]. %% %% Description: Select the cipher suites that can be used together with the %% supplied certificate. (Server side functionality) %%------------------------------------------------------------------- filter(undefined, Ciphers) -> Ciphers; filter(DerCert, Ciphers) -> OtpCert = public_key:pkix_decode_cert(DerCert, otp), SigAlg = OtpCert#'OTPCertificate'.signatureAlgorithm, PubKeyInfo = OtpCert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.subjectPublicKeyInfo, PubKeyAlg = PubKeyInfo#'OTPSubjectPublicKeyInfo'.algorithm, Ciphers1 = case ssl_certificate:public_key_type(PubKeyAlg#'PublicKeyAlgorithm'.algorithm) of rsa -> filter_keyuse(OtpCert, ((Ciphers -- dsa_signed_suites()) -- ec_keyed_suites()) -- ecdh_suites(), rsa_suites(), dhe_rsa_suites() ++ ecdhe_rsa_suites()); dsa -> (Ciphers -- rsa_keyed_suites()) -- ec_keyed_suites(); ec -> filter_keyuse(OtpCert, (Ciphers -- rsa_keyed_suites()) -- dsa_signed_suites(), [], ecdhe_ecdsa_suites()) end, case public_key:pkix_sign_types(SigAlg#'SignatureAlgorithm'.algorithm) of {_, rsa} -> Ciphers1 -- ecdsa_signed_suites(); {_, dsa} -> Ciphers1; {_, ecdsa} -> Ciphers1 -- rsa_signed_suites() end. %%-------------------------------------------------------------------- -spec filter_suites([erl_cipher_suite()] | [cipher_suite()], map()) -> [erl_cipher_suite()] | [cipher_suite()]. %% %% Description: Filter suites using supplied filter funs %%------------------------------------------------------------------- filter_suites(Suites, Filters) -> ApplyFilters = fun(Suite) -> filter_suite(Suite, Filters) end, lists:filter(ApplyFilters, Suites). filter_suite(#{key_exchange := KeyExchange, cipher := Cipher, mac := Hash, prf := Prf}, #{key_exchange_filters := KeyFilters, cipher_filters := CipherFilters, mac_filters := HashFilters, prf_filters := PrfFilters}) -> all_filters(KeyExchange, KeyFilters) andalso all_filters(Cipher, CipherFilters) andalso all_filters(Hash, HashFilters) andalso all_filters(Prf, PrfFilters); filter_suite(Suite, Filters) -> filter_suite(suite_definition(Suite), Filters). %%-------------------------------------------------------------------- -spec filter_suites([erl_cipher_suite()] | [cipher_suite()]) -> [erl_cipher_suite()] | [cipher_suite()]. %% %% Description: Filter suites for algorithms supported by crypto. %%------------------------------------------------------------------- filter_suites(Suites) -> Filters = crypto_support_filters(), filter_suites(Suites, Filters). all_filters(_, []) -> true; all_filters(Value, [Filter| Rest]) -> case Filter(Value) of true -> all_filters(Value, Rest); false -> false end. crypto_support_filters() -> Algos = crypto:supports(), Hashs = proplists:get_value(hashs, Algos), #{key_exchange_filters => [fun(KeyExchange) -> is_acceptable_keyexchange(KeyExchange, proplists:get_value(public_keys, Algos)) end], cipher_filters => [fun(Cipher) -> is_acceptable_cipher(Cipher, proplists:get_value(ciphers, Algos)) end], mac_filters => [fun(Hash) -> is_acceptable_hash(Hash, Hashs) end], prf_filters => [fun(Prf) -> is_acceptable_prf(Prf, proplists:get_value(hashs, Algos)) end]}. is_acceptable_keyexchange(KeyExchange, _Algos) when KeyExchange == psk; KeyExchange == null -> true; is_acceptable_keyexchange(KeyExchange, Algos) when KeyExchange == dh_anon; KeyExchange == dhe_psk -> proplists:get_bool(dh, Algos); is_acceptable_keyexchange(dhe_dss, Algos) -> proplists:get_bool(dh, Algos) andalso proplists:get_bool(dss, Algos); is_acceptable_keyexchange(dhe_rsa, Algos) -> proplists:get_bool(dh, Algos) andalso proplists:get_bool(rsa, Algos); is_acceptable_keyexchange(KeyExchange, Algos) when KeyExchange == ecdh_anon; KeyExchange == ecdhe_psk -> proplists:get_bool(ecdh, Algos); is_acceptable_keyexchange(KeyExchange, Algos) when KeyExchange == ecdh_ecdsa; KeyExchange == ecdhe_ecdsa -> proplists:get_bool(ecdh, Algos) andalso proplists:get_bool(ecdsa, Algos); is_acceptable_keyexchange(KeyExchange, Algos) when KeyExchange == ecdh_rsa; KeyExchange == ecdhe_rsa -> proplists:get_bool(ecdh, Algos) andalso proplists:get_bool(rsa, Algos); is_acceptable_keyexchange(KeyExchange, Algos) when KeyExchange == rsa; KeyExchange == rsa_psk -> proplists:get_bool(rsa, Algos); is_acceptable_keyexchange(srp_anon, Algos) -> proplists:get_bool(srp, Algos); is_acceptable_keyexchange(srp_dss, Algos) -> proplists:get_bool(srp, Algos) andalso proplists:get_bool(dss, Algos); is_acceptable_keyexchange(srp_rsa, Algos) -> proplists:get_bool(srp, Algos) andalso proplists:get_bool(rsa, Algos); is_acceptable_keyexchange(_KeyExchange, _Algos) -> false. is_acceptable_cipher(null, _Algos) -> true; is_acceptable_cipher(rc4_128, Algos) -> proplists:get_bool(rc4, Algos); is_acceptable_cipher(des_cbc, Algos) -> proplists:get_bool(des_cbc, Algos); is_acceptable_cipher('3des_ede_cbc', Algos) -> proplists:get_bool(des3_cbc, Algos); is_acceptable_cipher(aes_128_cbc, Algos) -> proplists:get_bool(aes_cbc128, Algos); is_acceptable_cipher(aes_256_cbc, Algos) -> proplists:get_bool(aes_cbc256, Algos); is_acceptable_cipher(Cipher, Algos) when Cipher == aes_128_gcm; Cipher == aes_256_gcm -> proplists:get_bool(aes_gcm, Algos); is_acceptable_cipher(Cipher, Algos) -> proplists:get_bool(Cipher, Algos). is_acceptable_hash(null, _Algos) -> true; is_acceptable_hash(aead, _Algos) -> true; is_acceptable_hash(Hash, Algos) -> proplists:get_bool(Hash, Algos). is_acceptable_prf(default_prf, _) -> true; is_acceptable_prf(Prf, Algos) -> proplists:get_bool(Prf, Algos). is_fallback(CipherSuites)-> lists:member(?TLS_FALLBACK_SCSV, CipherSuites). %%-------------------------------------------------------------------- -spec random_bytes(integer()) -> binary(). %% %% Description: Generates cryptographically secure random sequence %%-------------------------------------------------------------------- random_bytes(N) -> crypto:strong_rand_bytes(N). calc_mac_hash(Type, Version, PlainFragment, #{sequence_number := SeqNo, mac_secret := MacSecret, security_parameters:= SecPars}) -> Length = erlang:iolist_size(PlainFragment), mac_hash(Version, SecPars#security_parameters.mac_algorithm, MacSecret, SeqNo, Type, Length, PlainFragment). is_stream_ciphersuite(#{cipher := rc4_128}) -> true; is_stream_ciphersuite(_) -> false. %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- mac_hash({_,_}, ?NULL, _MacSecret, _SeqNo, _Type, _Length, _Fragment) -> <<>>; mac_hash({3, 0}, MacAlg, MacSecret, SeqNo, Type, Length, Fragment) -> ssl_v3:mac_hash(MacAlg, MacSecret, SeqNo, Type, Length, Fragment); mac_hash({3, N} = Version, MacAlg, MacSecret, SeqNo, Type, Length, Fragment) when N =:= 1; N =:= 2; N =:= 3 -> tls_v1:mac_hash(MacAlg, MacSecret, SeqNo, Type, Version, Length, Fragment). bulk_cipher_algorithm(null) -> ?NULL; bulk_cipher_algorithm(rc4_128) -> ?RC4; bulk_cipher_algorithm(des_cbc) -> ?DES; bulk_cipher_algorithm('3des_ede_cbc') -> ?'3DES'; bulk_cipher_algorithm(Cipher) when Cipher == aes_128_cbc; Cipher == aes_256_cbc -> ?AES_CBC; bulk_cipher_algorithm(Cipher) when Cipher == aes_128_gcm; Cipher == aes_256_gcm -> ?AES_GCM; bulk_cipher_algorithm(chacha20_poly1305) -> ?CHACHA20_POLY1305. type(Cipher) when Cipher == null; Cipher == rc4_128 -> ?STREAM; type(Cipher) when Cipher == des_cbc; Cipher == '3des_ede_cbc'; Cipher == aes_128_cbc; Cipher == aes_256_cbc -> ?BLOCK; type(Cipher) when Cipher == aes_128_gcm; Cipher == aes_256_gcm; Cipher == chacha20_poly1305 -> ?AEAD. key_material(null) -> 0; key_material(rc4_128) -> 16; key_material(des_cbc) -> 8; key_material('3des_ede_cbc') -> 24; key_material(aes_128_cbc) -> 16; key_material(aes_256_cbc) -> 32; key_material(aes_128_gcm) -> 16; key_material(aes_256_gcm) -> 32; key_material(chacha20_poly1305) -> 32. expanded_key_material(null) -> 0; expanded_key_material(rc4_128) -> 16; expanded_key_material(Cipher) when Cipher == des_cbc -> 8; expanded_key_material('3des_ede_cbc') -> 24; expanded_key_material(Cipher) when Cipher == aes_128_cbc; Cipher == aes_256_cbc; Cipher == aes_128_gcm; Cipher == aes_256_gcm; Cipher == chacha20_poly1305 -> unknown. effective_key_bits(null) -> 0; effective_key_bits(des_cbc) -> 56; effective_key_bits(Cipher) when Cipher == rc4_128; Cipher == aes_128_cbc; Cipher == aes_128_gcm -> 128; effective_key_bits('3des_ede_cbc') -> 168; effective_key_bits(Cipher) when Cipher == aes_256_cbc; Cipher == aes_256_gcm; Cipher == chacha20_poly1305 -> 256. iv_size(Cipher) when Cipher == null; Cipher == rc4_128; Cipher == chacha20_poly1305-> 0; iv_size(Cipher) when Cipher == aes_128_gcm; Cipher == aes_256_gcm -> 4; iv_size(Cipher) -> block_size(Cipher). block_size(Cipher) when Cipher == des_cbc; Cipher == '3des_ede_cbc' -> 8; block_size(Cipher) when Cipher == aes_128_cbc; Cipher == aes_256_cbc; Cipher == aes_128_gcm; Cipher == aes_256_gcm; Cipher == chacha20_poly1305 -> 16. prf_algorithm(default_prf, {3, N}) when N >= 3 -> ?SHA256; prf_algorithm(default_prf, {3, _}) -> ?MD5SHA; prf_algorithm(Algo, _) -> hash_algorithm(Algo). mac_algorithm(aead) -> aead; mac_algorithm(Algo) -> hash_algorithm(Algo). hash_algorithm(null) -> ?NULL; hash_algorithm(md5) -> ?MD5; hash_algorithm(sha) -> ?SHA; %% Only sha always refers to "SHA-1" hash_algorithm(sha224) -> ?SHA224; hash_algorithm(sha256) -> ?SHA256; hash_algorithm(sha384) -> ?SHA384; hash_algorithm(sha512) -> ?SHA512; hash_algorithm(?NULL) -> null; hash_algorithm(?MD5) -> md5; hash_algorithm(?SHA) -> sha; hash_algorithm(?SHA224) -> sha224; hash_algorithm(?SHA256) -> sha256; hash_algorithm(?SHA384) -> sha384; hash_algorithm(?SHA512) -> sha512; hash_algorithm(Other) when is_integer(Other) andalso ((Other >= 7) and (Other =< 223)) -> unassigned; hash_algorithm(Other) when is_integer(Other) andalso ((Other >= 224) and (Other =< 255)) -> Other. sign_algorithm(anon) -> ?ANON; sign_algorithm(rsa) -> ?RSA; sign_algorithm(dsa) -> ?DSA; sign_algorithm(ecdsa) -> ?ECDSA; sign_algorithm(?ANON) -> anon; sign_algorithm(?RSA) -> rsa; sign_algorithm(?DSA) -> dsa; sign_algorithm(?ECDSA) -> ecdsa; sign_algorithm(Other) when is_integer(Other) andalso ((Other >= 4) and (Other =< 223)) -> unassigned; sign_algorithm(Other) when is_integer(Other) andalso ((Other >= 224) and (Other =< 255)) -> Other. hash_size(null) -> 0; %% The AEAD MAC hash size is not used in the context %% of calculating the master secret. See RFC 5246 Section 6.2.3.3. hash_size(aead) -> 0; hash_size(md5) -> 16; hash_size(sha) -> 20; %% Uncomment when adding cipher suite that needs it %hash_size(sha224) -> % 28; hash_size(sha256) -> 32; hash_size(sha384) -> 48. %% Uncomment when adding cipher suite that needs it %hash_size(sha512) -> % 64. %% RFC 5246: 6.2.3.2. CBC Block Cipher %% %% Implementation note: Canvel et al. [CBCTIME] have demonstrated a %% timing attack on CBC padding based on the time required to compute %% the MAC. In order to defend against this attack, implementations %% MUST ensure that record processing time is essentially the same %% whether or not the padding is correct. In general, the best way to %% do this is to compute the MAC even if the padding is incorrect, and %% only then reject the packet. For instance, if the pad appears to be %% incorrect, the implementation might assume a zero-length pad and then %% compute the MAC. This leaves a small timing channel, since MAC %% performance depends to some extent on the size of the data fragment, %% but it is not believed to be large enough to be exploitable, due to %% the large block size of existing MACs and the small size of the %% timing signal. %% %% implementation note: %% We return the original (possibly invalid) PadLength in any case. %% An invalid PadLength will be caught by is_correct_padding/2 %% generic_block_cipher_from_bin({3, N}, T, IV, HashSize) when N == 0; N == 1 -> Sz1 = byte_size(T) - 1, <<_:Sz1/binary, ?BYTE(PadLength0)>> = T, PadLength = if PadLength0 >= Sz1 -> 0; true -> PadLength0 end, CompressedLength = byte_size(T) - PadLength - 1 - HashSize, <> = T, #generic_block_cipher{content=Content, mac=Mac, padding=Padding, padding_length=PadLength0, next_iv = IV}; generic_block_cipher_from_bin({3, N}, T, IV, HashSize) when N == 2; N == 3 -> Sz1 = byte_size(T) - 1, <<_:Sz1/binary, ?BYTE(PadLength)>> = T, IVLength = byte_size(IV), CompressedLength = byte_size(T) - IVLength - PadLength - 1 - HashSize, <> = T, #generic_block_cipher{content=Content, mac=Mac, padding=Padding, padding_length=PadLength, next_iv = NextIV}. generic_stream_cipher_from_bin(T, HashSz) -> Sz = byte_size(T), CompressedLength = Sz - HashSz, <> = T, #generic_stream_cipher{content=Content, mac=Mac}. is_correct_padding(#generic_block_cipher{padding_length = Len, padding = Padding}, {3, 0}, _) -> Len == byte_size(Padding); %% Only length check is done in SSL 3.0 spec %% For interoperability reasons it is possible to disable %% the padding check when using TLS 1.0, as it is not strictly required %% in the spec (only recommended), howerver this makes TLS 1.0 vunrable to the Poodle attack %% so by default this clause will not match is_correct_padding(GenBlockCipher, {3, 1}, false) -> is_correct_padding(GenBlockCipher, {3, 0}, false); %% Padding must be checked in TLS 1.1 and after is_correct_padding(#generic_block_cipher{padding_length = Len, padding = Padding}, _, _) -> Len == byte_size(Padding) andalso list_to_binary(lists:duplicate(Len, Len)) == Padding. get_padding(Length, BlockSize) -> get_padding_aux(BlockSize, Length rem BlockSize). get_padding_aux(_, 0) -> {0, <<>>}; get_padding_aux(BlockSize, PadLength) -> N = BlockSize - PadLength, {N, list_to_binary(lists:duplicate(N, N))}. random_iv(IV) -> IVSz = byte_size(IV), random_bytes(IVSz). next_iv(Bin, IV) -> BinSz = byte_size(Bin), IVSz = byte_size(IV), FirstPart = BinSz - IVSz, <<_:FirstPart/binary, NextIV:IVSz/binary>> = Bin, NextIV. rsa_signed_suites() -> dhe_rsa_suites() ++ rsa_suites() ++ psk_rsa_suites() ++ srp_rsa_suites() ++ ecdh_rsa_suites() ++ ecdhe_rsa_suites(). rsa_keyed_suites() -> dhe_rsa_suites() ++ rsa_suites() ++ psk_rsa_suites() ++ srp_rsa_suites() ++ ecdhe_rsa_suites(). dhe_rsa_suites() -> [?TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA, ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA, ?TLS_DHE_RSA_WITH_DES_CBC_SHA, ?TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, ?TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, ?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ]. psk_rsa_suites() -> [?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, ?TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, ?TLS_RSA_PSK_WITH_AES_256_CBC_SHA, ?TLS_RSA_PSK_WITH_AES_128_CBC_SHA, ?TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, ?TLS_RSA_PSK_WITH_RC4_128_SHA]. srp_rsa_suites() -> [?TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA, ?TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA]. rsa_suites() -> [?TLS_RSA_WITH_AES_256_CBC_SHA256, ?TLS_RSA_WITH_AES_256_CBC_SHA, ?TLS_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_RSA_WITH_AES_128_CBC_SHA256, ?TLS_RSA_WITH_AES_128_CBC_SHA, ?TLS_RSA_WITH_RC4_128_SHA, ?TLS_RSA_WITH_RC4_128_MD5, ?TLS_RSA_WITH_DES_CBC_SHA, ?TLS_RSA_WITH_AES_128_GCM_SHA256, ?TLS_RSA_WITH_AES_256_GCM_SHA384]. ecdh_rsa_suites() -> [?TLS_ECDH_RSA_WITH_NULL_SHA, ?TLS_ECDH_RSA_WITH_RC4_128_SHA, ?TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, ?TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, ?TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, ?TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384]. ecdhe_rsa_suites() -> [?TLS_ECDHE_RSA_WITH_NULL_SHA, ?TLS_ECDHE_RSA_WITH_RC4_128_SHA, ?TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, ?TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, ?TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, ?TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, ?TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, ?TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256]. dsa_signed_suites() -> dhe_dss_suites() ++ srp_dss_suites(). dhe_dss_suites() -> [?TLS_DHE_DSS_WITH_AES_256_CBC_SHA256, ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA256, ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_DSS_WITH_AES_128_GCM_SHA256, ?TLS_DHE_DSS_WITH_AES_256_GCM_SHA384]. srp_dss_suites() -> [?TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA, ?TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA]. ec_keyed_suites() -> ecdh_ecdsa_suites() ++ ecdhe_ecdsa_suites() ++ ecdh_rsa_suites(). ecdsa_signed_suites() -> ecdh_ecdsa_suites() ++ ecdhe_ecdsa_suites(). ecdh_suites() -> ecdh_rsa_suites() ++ ecdh_ecdsa_suites(). ecdh_ecdsa_suites() -> [?TLS_ECDH_ECDSA_WITH_NULL_SHA, ?TLS_ECDH_ECDSA_WITH_RC4_128_SHA, ?TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, ?TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, ?TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, ?TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384]. ecdhe_ecdsa_suites() -> [?TLS_ECDHE_ECDSA_WITH_NULL_SHA, ?TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, ?TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, ?TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, ?TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, ?TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, ?TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, ?TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256]. filter_keyuse(OtpCert, Ciphers, Suites, SignSuites) -> TBSCert = OtpCert#'OTPCertificate'.tbsCertificate, TBSExtensions = TBSCert#'OTPTBSCertificate'.extensions, Extensions = ssl_certificate:extensions_list(TBSExtensions), case ssl_certificate:select_extension(?'id-ce-keyUsage', Extensions) of undefined -> Ciphers; #'Extension'{extnValue = KeyUse} -> Result = filter_keyuse_suites(keyEncipherment, KeyUse, Ciphers, Suites), filter_keyuse_suites(digitalSignature, KeyUse, Result, SignSuites) end. filter_keyuse_suites(Use, KeyUse, CipherSuits, Suites) -> case ssl_certificate:is_valid_key_usage(KeyUse, Use) of true -> CipherSuits; false -> CipherSuits -- Suites end.