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-rw-r--r--lib/ssl/src/dtls_v1.erl14
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/ssl/src/dtls_v1.erl b/lib/ssl/src/dtls_v1.erl
index 7169477a82..4aaf8baa6c 100644
--- a/lib/ssl/src/dtls_v1.erl
+++ b/lib/ssl/src/dtls_v1.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2013-2017. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2016. 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.
@@ -22,7 +22,10 @@
-include("ssl_cipher.hrl").
-export([suites/1, all_suites/1, mac_hash/7, ecc_curves/1,
- corresponding_tls_version/1, corresponding_dtls_version/1]).
+ corresponding_tls_version/1, corresponding_dtls_version/1,
+ cookie_secret/0, cookie_timeout/0]).
+
+-define(COOKIE_BASE_TIMEOUT, 30000).
-spec suites(Minor:: 253|255) -> [ssl_cipher:cipher_suite()].
@@ -47,6 +50,13 @@ ecc_curves({_Major, Minor}) ->
corresponding_tls_version({254, Minor}) ->
{3, corresponding_minor_tls_version(Minor)}.
+cookie_secret() ->
+ crypto:strong_rand_bytes(32).
+
+cookie_timeout() ->
+ %% Cookie will live for two timeouts periods
+ round(rand:uniform() * ?COOKIE_BASE_TIMEOUT/2).
+
corresponding_minor_tls_version(255) ->
2;
corresponding_minor_tls_version(253) ->