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-rw-r--r--lib/ssl/src/ssl_handshake.erl181
1 files changed, 70 insertions, 111 deletions
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index 54938e0fbc..c8245e2fb4 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -31,11 +31,11 @@
-include("ssl_debug.hrl").
-include_lib("public_key/include/public_key.hrl").
--export([master_secret/4, client_hello/5, server_hello/4, hello/4,
+-export([master_secret/4, client_hello/6, server_hello/4, hello/4,
hello_request/0, certify/7, certificate/3,
client_certificate_verify/6,
certificate_verify/6, certificate_request/2,
- key_exchange/2, server_key_exchange_hash/2, finished/4,
+ key_exchange/2, server_key_exchange_plain/2, finished/4,
verify_connection/5,
get_tls_handshake/4,
server_hello_done/0, sig_alg/1,
@@ -46,7 +46,7 @@
%% Internal application API
%%====================================================================
%%--------------------------------------------------------------------
-%% Function: client_hello(Host, Port, ConnectionStates, SslOpts) ->
+%% Function: client_hello(Host, Port, ConnectionStates, SslOpts, Cert, Renegotiation) ->
%% #client_hello{}
%% Host
%% Port
@@ -56,8 +56,8 @@
%% Description: Creates a client hello message.
%%--------------------------------------------------------------------
client_hello(Host, Port, ConnectionStates, #ssl_options{versions = Versions,
- ciphers = Ciphers}
- = SslOpts, Renegotiation) ->
+ ciphers = UserSuites}
+ = SslOpts, Cert, Renegotiation) ->
Fun = fun(Version) ->
ssl_record:protocol_version(Version)
@@ -65,7 +65,8 @@ client_hello(Host, Port, ConnectionStates, #ssl_options{versions = Versions,
Version = ssl_record:highest_protocol_version(lists:map(Fun, Versions)),
Pending = ssl_record:pending_connection_state(ConnectionStates, read),
SecParams = Pending#connection_state.security_parameters,
-
+ Ciphers = available_suites(Cert, UserSuites, Version),
+
Id = ssl_manager:client_session_id(Host, Port, SslOpts),
#client_hello{session_id = Id,
@@ -128,16 +129,21 @@ hello(#server_hello{cipher_suite = CipherSuite, server_version = Version,
session_id = SessionId, renegotiation_info = Info},
#ssl_options{secure_renegotiate = SecureRenegotation},
ConnectionStates0, Renegotiation) ->
-
- case handle_renegotiation_info(client, Info, ConnectionStates0,
- Renegotiation, SecureRenegotation, []) of
- {ok, ConnectionStates1} ->
- ConnectionStates =
- hello_pending_connection_states(client, CipherSuite, Random,
- Compression, ConnectionStates1),
- {Version, SessionId, ConnectionStates};
- #alert{} = Alert ->
- Alert
+
+ case ssl_record:is_acceptable_version(Version) of
+ true ->
+ case handle_renegotiation_info(client, Info, ConnectionStates0,
+ Renegotiation, SecureRenegotation, []) of
+ {ok, ConnectionStates1} ->
+ ConnectionStates =
+ hello_pending_connection_states(client, CipherSuite, Random,
+ Compression, ConnectionStates1),
+ {Version, SessionId, ConnectionStates};
+ #alert{} = Alert ->
+ Alert
+ end;
+ false ->
+ ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION)
end;
hello(#client_hello{client_version = ClientVersion, random = Random,
@@ -145,14 +151,14 @@ hello(#client_hello{client_version = ClientVersion, random = Random,
renegotiation_info = Info} = Hello,
#ssl_options{versions = Versions,
secure_renegotiate = SecureRenegotation} = SslOpts,
- {Port, Session0, Cache, CacheCb, ConnectionStates0}, Renegotiation) ->
+ {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert}, Renegotiation) ->
Version = select_version(ClientVersion, Versions),
case ssl_record:is_acceptable_version(Version) of
true ->
{Type, #session{cipher_suite = CipherSuite,
compression_method = Compression} = Session}
= select_session(Hello, Port, Session0, Version,
- SslOpts, Cache, CacheCb),
+ SslOpts, Cache, CacheCb, Cert),
case CipherSuite of
no_suite ->
?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY);
@@ -282,7 +288,7 @@ client_certificate_verify(OwnCert, MasterSecret, Version, Algorithm,
PrivateKey, {Hashes0, _}) ->
case public_key:pkix_is_fixed_dh_cert(OwnCert) of
true ->
- ignore;
+ ?ALERT_REC(?FATAL, ?UNSUPPORTED_CERTIFICATE);
false ->
Hashes =
calc_certificate_verify(Version, MasterSecret,
@@ -302,7 +308,6 @@ client_certificate_verify(OwnCert, MasterSecret, Version, Algorithm,
certificate_verify(Signature, {_, PublicKey, _}, Version,
MasterSecret, Algorithm, {_, Hashes0})
when Algorithm == rsa;
- Algorithm == dh_rsa;
Algorithm == dhe_rsa ->
Hashes = calc_certificate_verify(Version, MasterSecret,
Algorithm, Hashes0),
@@ -312,8 +317,12 @@ certificate_verify(Signature, {_, PublicKey, _}, Version,
valid;
_ ->
?ALERT_REC(?FATAL, ?BAD_CERTIFICATE)
- end.
-%% TODO dsa clause
+ end;
+certificate_verify(Signature, {_, PublicKey, PublicKeyParams}, Version,
+ MasterSecret, dhe_dss = Algorithm, {_, Hashes0}) ->
+ Hashes = calc_certificate_verify(Version, MasterSecret,
+ Algorithm, Hashes0),
+ public_key:verify_signature(Hashes, sha, Signature, PublicKey, PublicKeyParams).
%%--------------------------------------------------------------------
%% Function: certificate_request(ConnectionStates, CertDbRef) ->
@@ -346,20 +355,13 @@ key_exchange(client, {premaster_secret, Secret, {_, PublicKey, _}}) ->
encrypted_premaster_secret(Secret, PublicKey),
#client_key_exchange{exchange_keys = EncPremasterSecret};
-%% Uncomment if dh_rsa and dh_dss cipher suites should
-%% be supported.
-%% key_exchange(client, fixed_diffie_hellman) ->
-%% #client_key_exchange{exchange_keys =
-%% #client_diffie_hellman_public{
-%% dh_public = <<>>
-%% }};
key_exchange(client, {dh, <<?UINT32(Len), PublicKey:Len/binary>>}) ->
#client_key_exchange{
exchange_keys = #client_diffie_hellman_public{
dh_public = PublicKey}
};
-key_exchange(server, {dh, {<<?UINT32(_), PublicKey/binary>>, _},
+key_exchange(server, {dh, {<<?UINT32(Len), PublicKey:Len/binary>>, _},
#'DHParameter'{prime = P, base = G},
KeyAlgo, ClientRandom, ServerRandom, PrivateKey}) ->
<<?UINT32(_), PBin/binary>> = crypto:mpint(P),
@@ -368,15 +370,14 @@ key_exchange(server, {dh, {<<?UINT32(_), PublicKey/binary>>, _},
GLen = byte_size(GBin),
YLen = byte_size(PublicKey),
ServerDHParams = #server_dh_params{dh_p = PBin,
- dh_g = GBin, dh_y = PublicKey},
-
- Hash =
- server_key_exchange_hash(KeyAlgo, <<ClientRandom/binary,
- ServerRandom/binary,
- ?UINT16(PLen), PBin/binary,
- ?UINT16(GLen), GBin/binary,
- ?UINT16(YLen), PublicKey/binary>>),
- Signed = digitally_signed(Hash, PrivateKey),
+ dh_g = GBin, dh_y = PublicKey},
+ Plain =
+ server_key_exchange_plain(KeyAlgo, <<ClientRandom/binary,
+ ServerRandom/binary,
+ ?UINT16(PLen), PBin/binary,
+ ?UINT16(GLen), GBin/binary,
+ ?UINT16(YLen), PublicKey/binary>>),
+ Signed = digitally_signed(Plain, PrivateKey),
#server_key_exchange{params = ServerDHParams,
signed_params = Signed}.
@@ -527,18 +528,12 @@ path_validation_alert(_, _) ->
?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE).
select_session(Hello, Port, Session, Version,
- #ssl_options{ciphers = UserSuites} = SslOpts, Cache, CacheCb) ->
+ #ssl_options{ciphers = UserSuites} = SslOpts, Cache, CacheCb, Cert) ->
SuggestedSessionId = Hello#client_hello.session_id,
SessionId = ssl_manager:server_session_id(Port, SuggestedSessionId,
SslOpts),
- Suites = case UserSuites of
- [] ->
- ssl_cipher:suites(Version);
- _ ->
- UserSuites
- end,
-
+ Suites = available_suites(Cert, UserSuites, Version),
case ssl_session:is_new(SuggestedSessionId, SessionId) of
true ->
CipherSuite =
@@ -552,7 +547,14 @@ select_session(Hello, Port, Session, Version,
{resumed, CacheCb:lookup(Cache, {Port, SessionId})}
end.
-
+available_suites(Cert, UserSuites, Version) ->
+ case UserSuites of
+ [] ->
+ ssl_cipher:filter(Cert, ssl_cipher:suites(Version));
+ _ ->
+ ssl_cipher:filter(Cert, UserSuites)
+ end.
+
cipher_suites(Suites, false) ->
[?TLS_EMPTY_RENEGOTIATION_INFO_SCSV | Suites];
cipher_suites(Suites, true) ->
@@ -725,12 +727,11 @@ master_secret(Version, MasterSecret, #security_parameters{
hash_size = HashSize,
key_material_length = KML,
expanded_key_material_length = EKML,
- iv_size = IVS,
- exportable = Exportable},
+ iv_size = IVS},
ConnectionStates, Role) ->
{ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey,
ServerWriteKey, ClientIV, ServerIV} =
- setup_keys(Version, Exportable, MasterSecret, ServerRandom,
+ setup_keys(Version, MasterSecret, ServerRandom,
ClientRandom, HashSize, KML, EKML, IVS),
?DBG_HEX(ClientWriteKey),
?DBG_HEX(ClientIV),
@@ -812,18 +813,11 @@ dec_hs(?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary,
renegotiation_info = RenegotiationInfo};
dec_hs(?CERTIFICATE, <<?UINT24(ACLen), ASN1Certs:ACLen/binary>>, _, _) ->
#certificate{asn1_certificates = certs_to_list(ASN1Certs)};
-%% Uncomment if support for export ciphers is added.
-%% dec_hs(?SERVER_KEY_EXCHANGE, <<?UINT16(ModLen), Mod:ModLen/binary,
-%% ?UINT16(ExpLen), Exp:ExpLen/binary,
-%% ?UINT16(_), Sig/binary>>,
-%% ?KEY_EXCHANGE_RSA, _) ->
-%% #server_key_exchange{params = #server_rsa_params{rsa_modulus = Mod,
-%% rsa_exponent = Exp},
-%% signed_params = Sig};
+
dec_hs(?SERVER_KEY_EXCHANGE, <<?UINT16(PLen), P:PLen/binary,
?UINT16(GLen), G:GLen/binary,
?UINT16(YLen), Y:YLen/binary,
- ?UINT16(_), Sig/binary>>,
+ ?UINT16(Len), Sig:Len/binary>>,
?KEY_EXCHANGE_DIFFIE_HELLMAN, _) ->
#server_key_exchange{params = #server_dh_params{dh_p = P,dh_g = G,
dh_y = Y},
@@ -831,7 +825,6 @@ dec_hs(?SERVER_KEY_EXCHANGE, <<?UINT16(PLen), P:PLen/binary,
dec_hs(?CERTIFICATE_REQUEST,
<<?BYTE(CertTypesLen), CertTypes:CertTypesLen/binary,
?UINT16(CertAuthsLen), CertAuths:CertAuthsLen/binary>>, _, _) ->
- %% TODO: maybe we should chop up CertAuths into a list?
#certificate_request{certificate_types = CertTypes,
certificate_authorities = CertAuths};
dec_hs(?SERVER_HELLO_DONE, <<>>, _, _) ->
@@ -846,8 +839,7 @@ dec_hs(?CLIENT_KEY_EXCHANGE, <<?UINT16(_), PKEPMS/binary>>,
PreSecret = #encrypted_premaster_secret{premaster_secret = PKEPMS},
#client_key_exchange{exchange_keys = PreSecret};
dec_hs(?CLIENT_KEY_EXCHANGE, <<>>, ?KEY_EXCHANGE_DIFFIE_HELLMAN, _) ->
- %% TODO: Should check whether the cert already contains a suitable DH-key (7.4.7.2)
- throw(?ALERT_REC(?FATAL, implicit_public_value_encoding));
+ throw(?ALERT_REC(?FATAL, ?UNSUPPORTED_CERTIFICATE));
dec_hs(?CLIENT_KEY_EXCHANGE, <<?UINT16(DH_YLen), DH_Y:DH_YLen/binary>>,
?KEY_EXCHANGE_DIFFIE_HELLMAN, _) ->
#client_key_exchange{exchange_keys =
@@ -953,17 +945,6 @@ enc_hs(#certificate{asn1_certificates = ASN1CertList}, _Version, _) ->
ASN1Certs = certs_from_list(ASN1CertList),
ACLen = erlang:iolist_size(ASN1Certs),
{?CERTIFICATE, <<?UINT24(ACLen), ASN1Certs:ACLen/binary>>};
-%% Uncomment if support for export ciphers is added.
-%% enc_hs(#server_key_exchange{params = #server_rsa_params{rsa_modulus = Mod,
-%% rsa_exponent = Exp},
-%% signed_params = SignedParams}, _Version, _) ->
-%% ModLen = byte_size(Mod),
-%% ExpLen = byte_size(Exp),
-%% SignedLen = byte_size(SignedParams),
-%% {?SERVER_KEY_EXCHANGE, <<?UINT16(ModLen),Mod/binary,
-%% ?UINT16(ExpLen), Exp/binary,
-%% ?UINT16(SignedLen), SignedParams/binary>>
-%% };
enc_hs(#server_key_exchange{params = #server_dh_params{
dh_p = P, dh_g = G, dh_y = Y},
signed_params = SignedParams}, _Version, _) ->
@@ -1073,16 +1054,11 @@ from_2bytes(<<?UINT16(N), Rest/binary>>, Acc) ->
certificate_types({KeyExchange, _, _, _})
when KeyExchange == rsa;
- KeyExchange == dh_dss;
- KeyExchange == dh_rsa;
KeyExchange == dhe_dss;
KeyExchange == dhe_rsa ->
<<?BYTE(?RSA_SIGN), ?BYTE(?DSS_SIGN)>>;
certificate_types(_) ->
- %%TODO: Is this a good default,
- %% is there a case where we like to request
- %% a RSA_FIXED_DH or DSS_FIXED_DH
<<?BYTE(?RSA_SIGN)>>.
certificate_authorities(CertDbRef) ->
@@ -1101,7 +1077,7 @@ certificate_authorities_from_db(CertDbRef) ->
certificate_authorities_from_db(CertDbRef, no_candidate, []).
certificate_authorities_from_db(CertDbRef, PrevKey, Acc) ->
- case ssl_certificate_db:issuer_candidate(PrevKey) of
+ case ssl_manager:issuer_candidate(PrevKey) of
no_more_candidates ->
lists:reverse(Acc);
{{CertDbRef, _, _} = Key, Cert} ->
@@ -1114,9 +1090,8 @@ certificate_authorities_from_db(CertDbRef, PrevKey, Acc) ->
digitally_signed(Hashes, #'RSAPrivateKey'{} = Key) ->
public_key:encrypt_private(Hashes, Key,
[{rsa_pad, rsa_pkcs1_padding}]);
-digitally_signed(Hashes, #'DSAPrivateKey'{} = Key) ->
- public_key:sign(Hashes, Key).
-
+digitally_signed(Plain, #'DSAPrivateKey'{} = Key) ->
+ public_key:sign(Plain, Key).
calc_master_secret({3,0}, PremasterSecret, ClientRandom, ServerRandom) ->
ssl_ssl3:master_secret(PremasterSecret, ClientRandom, ServerRandom);
@@ -1125,20 +1100,15 @@ calc_master_secret({3,N},PremasterSecret, ClientRandom, ServerRandom)
when N == 1; N == 2 ->
ssl_tls1:master_secret(PremasterSecret, ClientRandom, ServerRandom).
-setup_keys({3,0}, Exportable, MasterSecret,
+setup_keys({3,0}, MasterSecret,
ServerRandom, ClientRandom, HashSize, KML, EKML, IVS) ->
- ssl_ssl3:setup_keys(Exportable, MasterSecret, ServerRandom,
+ ssl_ssl3:setup_keys(MasterSecret, ServerRandom,
ClientRandom, HashSize, KML, EKML, IVS);
-setup_keys({3,1}, _Exportable, MasterSecret,
+setup_keys({3,1}, MasterSecret,
ServerRandom, ClientRandom, HashSize, KML, _EKML, IVS) ->
ssl_tls1:setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize,
- KML, IVS);
-
-setup_keys({3,2}, _Exportable, MasterSecret,
- ServerRandom, ClientRandom, HashSize, KML, _EKML, _IVS) ->
- ssl_tls1:setup_keys(MasterSecret, ServerRandom,
- ClientRandom, HashSize, KML).
+ KML, IVS).
calc_finished({3, 0}, Role, MasterSecret, Hashes) ->
ssl_ssl3:finished(Role, MasterSecret, Hashes);
@@ -1152,32 +1122,21 @@ calc_certificate_verify({3, N}, _, Algorithm, Hashes)
when N == 1; N == 2 ->
ssl_tls1:certificate_verify(Algorithm, Hashes).
-server_key_exchange_hash(Algorithm, Value) when Algorithm == rsa;
- Algorithm == dh_rsa;
+server_key_exchange_plain(Algorithm, Value) when Algorithm == rsa;
Algorithm == dhe_rsa ->
- MD5Context = crypto:md5_init(),
- NewMD5Context = crypto:md5_update(MD5Context, Value),
- MD5 = crypto:md5_final(NewMD5Context),
-
- SHAContext = crypto:sha_init(),
- NewSHAContext = crypto:sha_update(SHAContext, Value),
- SHA = crypto:sha_final(NewSHAContext),
-
+ MD5 = crypto:md5(Value),
+ SHA = crypto:sha(Value),
<<MD5/binary, SHA/binary>>;
-server_key_exchange_hash(Algorithm, Value) when Algorithm == dh_dss;
- Algorithm == dhe_dss ->
-
- SHAContext = crypto:sha_init(),
- NewSHAContext = crypto:sha_update(SHAContext, Value),
- crypto:sha_final(NewSHAContext).
-
+server_key_exchange_plain(dhe_dss, Value) ->
+ %% Hash will be done by crypto.
+ Value.
sig_alg(dh_anon) ->
?SIGNATURE_ANONYMOUS;
-sig_alg(Alg) when Alg == dhe_rsa; Alg == rsa; Alg == dh_rsa ->
+sig_alg(Alg) when Alg == dhe_rsa; Alg == rsa ->
?SIGNATURE_RSA;
-sig_alg(Alg) when Alg == dh_dss; Alg == dhe_dss ->
+sig_alg(dhe_dss) ->
?SIGNATURE_DSA;
sig_alg(_) ->
?NULL.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 06:45:34 +0000