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| author | Ingela Anderton Andin <[email protected]> | 2017-12-08 15:06:13 +0100 |
|---|---|---|
| committer | Ingela Anderton Andin <[email protected]> | 2017-12-14 11:19:02 +0100 |
| commit | b4451cf451fb8d025158809084503e2ae13b7f7f (patch) | |
| tree | 20d4a53d61056e46416a99bd9675b771d102567a | |
| parent | 4c7d0f1c937ec37fbdac47de4f71f92feb0128c7 (diff) | |
| download | otp-b4451cf451fb8d025158809084503e2ae13b7f7f.tar.gz otp-b4451cf451fb8d025158809084503e2ae13b7f7f.tar.bz2 otp-b4451cf451fb8d025158809084503e2ae13b7f7f.zip | |
ssl: Align (with DTLS) and correct TLS_FALLBACK_SCSV handling
| -rw-r--r-- | lib/ssl/src/dtls_handshake.erl | 7 | ||||
| -rw-r--r-- | lib/ssl/src/ssl_handshake.erl | 7 | ||||
| -rw-r--r-- | lib/ssl/src/tls_handshake.erl | 9 |
3 files changed, 12 insertions, 11 deletions
diff --git a/lib/ssl/src/dtls_handshake.erl b/lib/ssl/src/dtls_handshake.erl index 5e8f5c2ca0..6071eece13 100644 --- a/lib/ssl/src/dtls_handshake.erl +++ b/lib/ssl/src/dtls_handshake.erl @@ -67,7 +67,8 @@ client_hello(Host, Port, ConnectionStates, SslOpts, %%-------------------------------------------------------------------- client_hello(Host, Port, Cookie, ConnectionStates, #ssl_options{versions = Versions, - ciphers = UserSuites + ciphers = UserSuites, + fallback = Fallback } = SslOpts, Cache, CacheCb, Renegotiation, OwnCert) -> Version = dtls_record:highest_protocol_version(Versions), @@ -83,7 +84,9 @@ client_hello(Host, Port, Cookie, ConnectionStates, #client_hello{session_id = Id, client_version = Version, - cipher_suites = ssl_handshake:cipher_suites(CipherSuites, Renegotiation), + cipher_suites = + ssl_handshake:cipher_suites(CipherSuites, + Renegotiation, Fallback), compression_methods = ssl_record:compressions(), random = SecParams#security_parameters.client_random, cookie = Cookie, diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl index 0974448276..fd437f62d2 100644 --- a/lib/ssl/src/ssl_handshake.erl +++ b/lib/ssl/src/ssl_handshake.erl @@ -67,7 +67,7 @@ %% Cipher suites handling -export([available_suites/2, available_signature_algs/2, available_signature_algs/4, - cipher_suites/2, prf/6, select_session/11, supported_ecc/1, + cipher_suites/3, prf/6, select_session/11, supported_ecc/1, premaster_secret/2, premaster_secret/3, premaster_secret/4]). %% Extensions handling @@ -782,6 +782,11 @@ available_signature_algs(#hash_sign_algos{hash_sign_algos = ClientHashSigns}, Su available_signature_algs(_, _, _, _) -> undefined. +cipher_suites(Suites, Renegotiation, true) -> + %% TLS_FALLBACK_SCSV should be placed last -RFC7507 + cipher_suites(Suites, Renegotiation) ++ [?TLS_FALLBACK_SCSV]; +cipher_suites(Suites, Renegotiation, false) -> + cipher_suites(Suites, Renegotiation). cipher_suites(Suites, false) -> [?TLS_EMPTY_RENEGOTIATION_INFO_SCSV | Suites]; cipher_suites(Suites, true) -> diff --git a/lib/ssl/src/tls_handshake.erl b/lib/ssl/src/tls_handshake.erl index d59e817ffb..8817418fb0 100644 --- a/lib/ssl/src/tls_handshake.erl +++ b/lib/ssl/src/tls_handshake.erl @@ -67,14 +67,7 @@ client_hello(Host, Port, ConnectionStates, AvailableCipherSuites, SslOpts, ConnectionStates, Renegotiation), - CipherSuites = - case Fallback of - true -> - [?TLS_FALLBACK_SCSV | - ssl_handshake:cipher_suites(AvailableCipherSuites, Renegotiation)]; - false -> - ssl_handshake:cipher_suites(AvailableCipherSuites, Renegotiation) - end, + CipherSuites = ssl_handshake:cipher_suites(AvailableCipherSuites, Renegotiation, Fallback), Id = ssl_session:client_id({Host, Port, SslOpts}, Cache, CacheCb, OwnCert), #client_hello{session_id = Id, client_version = Version, |