ssl: Remove DES ciphers from default configuration

DES is not considered secure.

Also correct 'Server Name Indication' support description.

6 files changed, 61 insertions, 15 deletions

diff --git a/lib/ssl/doc/src/ssl_app.xml b/lib/ssl/doc/src/ssl_app.xml
index 6c82e32a74..d05ece3971 100644
--- a/lib/ssl/doc/src/ssl_app.xml
+++ b/lib/ssl/doc/src/ssl_app.xml
@@ -43,6 +43,8 @@
       <item>For security reasons SSL-2.0 is not supported.</item>
       <item>For security reasons SSL-3.0 is no longer supported by default,
       but can be configured.</item>
+      <item>For security reasons DES cipher suites are no longer supported by default,
+      but can be configured.</item>
       <item>Ephemeral Diffie-Hellman cipher suites are supported,
       but not Diffie Hellman Certificates cipher suites.</item>
       <item>Elliptic Curve cipher suites are supported if the Crypto 
@@ -55,8 +57,8 @@
       motivated to implement them.</item>
       <item>CRL validation is supported.</item>
       <item>Policy certificate extensions are not supported.</item>
-      <item>'Server Name Indication' extension client side
-      (RFC 6066, Section 3) is supported.</item>
+      <item>'Server Name Indication' extension
+      (<url href="http://www.ietf.org/rfc/rfc6066.txt">RFC 6066</url>) is supported.</item>
     </list>
    </description>
 
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl
index 8c2a16ba96..93a84933a2 100644
--- a/lib/ssl/src/ssl_cipher.erl
+++ b/lib/ssl/src/ssl_cipher.erl
@@ -37,7 +37,7 @@
 	 cipher_init/3, decipher/6, cipher/5, decipher_aead/6, cipher_aead/6,
 	 suite/1, suites/1, all_suites/1, 
 	 ec_keyed_suites/0, anonymous_suites/1, psk_suites/1, srp_suites/0,
-	 rc4_suites/1, openssl_suite/1, openssl_suite_name/1, filter/2, filter_suites/1,
+	 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]).
 
 -export_type([cipher_suite/0,
@@ -311,7 +311,8 @@ all_suites(Version) ->
 	++ anonymous_suites(Version)
 	++ psk_suites(Version)
 	++ srp_suites()
-        ++ rc4_suites(Version).
+        ++ rc4_suites(Version)
+        ++ des_suites(Version).
 %%--------------------------------------------------------------------
 -spec anonymous_suites(ssl_record:ssl_version() | integer()) -> [cipher_suite()].
 %%
@@ -415,6 +416,16 @@ rc4_suites({3, N}) when N =< 3 ->
      ?TLS_RSA_WITH_RC4_128_MD5,
      ?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].
 
 %%--------------------------------------------------------------------
 -spec suite_definition(cipher_suite()) -> int_cipher_suite().
@@ -1714,7 +1725,8 @@ dhe_rsa_suites() ->
      ?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].
+     ?TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256
+    ].
 
 psk_rsa_suites() ->
     [?TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
diff --git a/lib/ssl/src/ssl_v3.erl b/lib/ssl/src/ssl_v3.erl
index f169059a75..f98ea83771 100644
--- a/lib/ssl/src/ssl_v3.erl
+++ b/lib/ssl/src/ssl_v3.erl
@@ -143,9 +143,7 @@ suites() ->
       ?TLS_RSA_WITH_3DES_EDE_CBC_SHA,
       ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
       ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
-      ?TLS_RSA_WITH_AES_128_CBC_SHA,
-      ?TLS_DHE_RSA_WITH_DES_CBC_SHA,
-      ?TLS_RSA_WITH_DES_CBC_SHA
+      ?TLS_RSA_WITH_AES_128_CBC_SHA
      ].
 
 %%--------------------------------------------------------------------
diff --git a/lib/ssl/src/tls_v1.erl b/lib/ssl/src/tls_v1.erl
index 71e5f349dd..09e378cfeb 100644
--- a/lib/ssl/src/tls_v1.erl
+++ b/lib/ssl/src/tls_v1.erl
@@ -208,9 +208,7 @@ suites(Minor) when Minor == 1; Minor == 2 ->
       ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
       ?TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
       ?TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
-      ?TLS_RSA_WITH_AES_128_CBC_SHA,
-      ?TLS_DHE_RSA_WITH_DES_CBC_SHA,
-      ?TLS_RSA_WITH_DES_CBC_SHA
+      ?TLS_RSA_WITH_AES_128_CBC_SHA
     ];
 suites(3) ->
     [
diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index 05b040a2ab..fb48a33d38 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -182,6 +182,8 @@ cipher_tests() ->
      rc4_rsa_cipher_suites,
      rc4_ecdh_rsa_cipher_suites,
      rc4_ecdsa_cipher_suites,
+     des_rsa_cipher_suites,
+     des_ecdh_rsa_cipher_suites,
      default_reject_anonymous].
 
 cipher_tests_ec() ->
@@ -444,7 +446,7 @@ connection_info(Config) when is_list(Config) ->
 			   {from, self()}, 
 			   {mfa, {?MODULE, connection_info_result, []}},
 			   {options, 
-			    [{ciphers,[{rsa,des_cbc,sha,no_export}]} | 
+			    [{ciphers,[{rsa, aes_128_cbc, sha}]} | 
 			     ClientOpts]}]),
     
     ct:log("Testcase ~p, Client ~p  Server ~p ~n",
@@ -453,7 +455,7 @@ connection_info(Config) when is_list(Config) ->
     Version = 
 	tls_record:protocol_version(tls_record:highest_protocol_version([])),
     
-    ServerMsg = ClientMsg = {ok, {Version, {rsa, des_cbc, sha}}},
+    ServerMsg = ClientMsg = {ok, {Version, {rsa, aes_128_cbc, sha}}},
 			   
     ssl_test_lib:check_result(Server, ServerMsg, Client, ClientMsg),
     
@@ -1950,6 +1952,23 @@ rc4_ecdsa_cipher_suites(Config) when is_list(Config) ->
     Ciphers = ssl_test_lib:rc4_suites(NVersion),
     run_suites(Ciphers, Version, Config, rc4_ecdsa).
 
+%%-------------------------------------------------------------------
+des_rsa_cipher_suites()->
+    [{doc, "Test the RC4 ciphersuites"}].
+des_rsa_cipher_suites(Config) when is_list(Config) ->
+    NVersion = tls_record:highest_protocol_version([]),
+    Version = tls_record:protocol_version(NVersion),
+    Ciphers = ssl_test_lib:des_suites(NVersion),
+    run_suites(Ciphers, Version, Config, des_rsa).
+%-------------------------------------------------------------------
+des_ecdh_rsa_cipher_suites()->
+    [{doc, "Test the RC4 ciphersuites"}].
+des_ecdh_rsa_cipher_suites(Config) when is_list(Config) ->
+    NVersion = tls_record:highest_protocol_version([]),
+    Version = tls_record:protocol_version(NVersion),
+    Ciphers = ssl_test_lib:des_suites(NVersion),
+    run_suites(Ciphers, Version, Config, des_dhe_rsa).
+
 %%--------------------------------------------------------------------
 default_reject_anonymous()->
     [{doc,"Test that by default anonymous cipher suites are rejected "}].
@@ -2686,7 +2705,12 @@ defaults(Config) when is_list(Config)->
     true = lists:member(sslv3, Available),
     false = lists:member(sslv3, Supported),
     false = lists:member({rsa,rc4_128,sha}, ssl:cipher_suites()),
-    true = lists:member({rsa,rc4_128,sha}, ssl:cipher_suites(all)).
+    true = lists:member({rsa,rc4_128,sha}, ssl:cipher_suites(all)),
+    false = lists:member({rsa,des_cbc,sha}, ssl:cipher_suites()),
+    true = lists:member({rsa,des_cbc,sha}, ssl:cipher_suites(all)),
+    false = lists:member({dhe_rsa,des_cbc,sha}, ssl:cipher_suites()),
+    true = lists:member({dhe_rsa,des_cbc,sha}, ssl:cipher_suites(all)).
+
 %%--------------------------------------------------------------------
 reuseaddr() ->
     [{doc,"Test reuseaddr option"}].
@@ -3974,7 +3998,15 @@ run_suites(Ciphers, Version, Config, Type) ->
 	    rc4_ecdsa ->
 		{?config(client_opts, Config),
 		 [{ciphers, Ciphers} |
-		  ?config(server_ecdsa_opts, Config)]}
+		  ?config(server_ecdsa_opts, Config)]};
+	    des_dhe_rsa ->
+		{?config(client_opts, Config),
+		 [{ciphers, Ciphers} |
+		  ?config(server_rsa_opts, Config)]};
+	    des_rsa ->
+		{?config(client_opts, Config),
+		 [{ciphers, Ciphers} |
+		  ?config(server_opts, Config)]}
 	end,
 
     Result =  lists:map(fun(Cipher) ->
diff --git a/lib/ssl/test/ssl_test_lib.erl b/lib/ssl/test/ssl_test_lib.erl
index 77c29668b5..fc0c0e64d1 100644
--- a/lib/ssl/test/ssl_test_lib.erl
+++ b/lib/ssl/test/ssl_test_lib.erl
@@ -971,6 +971,10 @@ rc4_suites(Version) ->
     Suites = ssl_cipher:rc4_suites(Version),
     ssl_cipher:filter_suites(Suites).
 
+des_suites(Version) ->
+    Suites = ssl_cipher:des_suites(Version),
+    ssl_cipher:filter_suites(Suites).
+
 pem_to_der(File) ->
     {ok, PemBin} = file:read_file(File),
     public_key:pem_decode(PemBin).