From 174062a2d90e98fe15927b1483ee760e0ec02022 Mon Sep 17 00:00:00 2001 From: Ingela Anderton Andin Date: Fri, 23 Feb 2018 11:30:02 +0100 Subject: ssl: Correct AEAD handling Cipher suite handling improvments missed to make a few changes for AEAD to be handled correctly see ERL-568 --- lib/ssl/src/ssl_cipher.erl | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'lib/ssl') diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl index c6927bd276..62a172ca7c 100644 --- a/lib/ssl/src/ssl_cipher.erl +++ b/lib/ssl/src/ssl_cipher.erl @@ -95,7 +95,7 @@ security_parameters(Version, CipherSuite, SecParams) -> expanded_key_material_length = expanded_key_material(Cipher), key_material_length = key_material(Cipher), iv_size = iv_size(Cipher), - mac_algorithm = hash_algorithm(Hash), + mac_algorithm = mac_algorithm(Hash), prf_algorithm = prf_algorithm(PrfHashAlg, Version), hash_size = hash_size(Hash)}. @@ -2334,6 +2334,11 @@ prf_algorithm(default_prf, {3, _}) -> 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" @@ -2364,6 +2369,10 @@ sign_algorithm(Other) when is_integer(Other) andalso ((Other >= 224) and (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) -> -- cgit v1.2.3