diff options
Diffstat (limited to 'lib/ssl/src/ssl_cipher.erl')
| -rw-r--r-- | lib/ssl/src/ssl_cipher.erl | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl index 605bbd859a..32fec03b8e 100644 --- a/lib/ssl/src/ssl_cipher.erl +++ b/lib/ssl/src/ssl_cipher.erl @@ -40,7 +40,7 @@ ec_keyed_suites/0, anonymous_suites/1, psk_suites/1, srp_suites/0, rc4_suites/1, des_suites/1, openssl_suite/1, openssl_suite_name/1, filter/2, filter_suites/1, hash_algorithm/1, sign_algorithm/1, is_acceptable_hash/2, is_fallback/1, - random_bytes/1]). + random_bytes/1, calc_aad/3, calc_mac_hash/4]). -export_type([cipher_suite/0, erl_cipher_suite/0, openssl_cipher_suite/0, @@ -311,7 +311,9 @@ aead_decipher(Type, #cipher_state{key = Key, iv = IV} = CipherState, suites({3, 0}) -> ssl_v3:suites(); suites({3, N}) -> - tls_v1:suites(N). + tls_v1:suites(N); +suites(Version) -> + suites(dtls_v1:corresponding_tls_version(Version)). all_suites(Version) -> suites(Version) @@ -1525,9 +1527,32 @@ is_fallback(CipherSuites)-> random_bytes(N) -> crypto:strong_rand_bytes(N). +calc_aad(Type, {MajVer, MinVer}, + #{sequence_number := SeqNo}) -> + <<SeqNo:64/integer, ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>. + +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). + %%-------------------------------------------------------------------- %%% 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; |