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authorPéter Dimitrov <[email protected]>2018-11-21 09:51:43 +0100
committerPéter Dimitrov <[email protected]>2018-11-21 09:51:43 +0100
commiteabd949074124d722fb291d0a8877c1ec6544834 (patch)
tree7a333c6788cb8f2d7fe83105d93855d45aec0c88 /lib
parent0bcc9fa7fbe302f26cddd48e23d5d5d3eec21943 (diff)
parentfeb095f9e46e67a2e119c673220c519542a190c0 (diff)
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Merge branch 'peterdmv/ssl/first_client_hello/OTP-15373'
* peterdmv/ssl/first_client_hello/OTP-15373: ssl: Fix property tests ssl: Improve the "start" and "negotiated" states ssl: Improve TLS 1.3 state machine ssl: Fix handling of "signature_algs" in ClientHello ssl: Fix default values of "signature_algs" ssl: Auto generate build dependencies ssl: Fix encode/decode of ClientHello (TLS 1.3) ssl: Change defaults for "supported_groups" ssl: Fix compilation warnings ssl: Implement the 'key_share' extension Change-Id: I31d5d376cee586f4824cd38703d56920d372ed2e
Diffstat (limited to 'lib')
-rw-r--r--lib/ssl/src/Makefile142
-rw-r--r--lib/ssl/src/dtls_handshake.erl2
-rw-r--r--lib/ssl/src/ssl.erl39
-rw-r--r--lib/ssl/src/ssl_cipher.erl56
-rw-r--r--lib/ssl/src/ssl_connection.hrl3
-rw-r--r--lib/ssl/src/ssl_dh_groups.erl26
-rw-r--r--lib/ssl/src/ssl_handshake.erl327
-rw-r--r--lib/ssl/src/ssl_handshake.hrl3
-rw-r--r--lib/ssl/src/tls_connection.erl199
-rw-r--r--lib/ssl/src/tls_connection_1_3.erl131
-rw-r--r--lib/ssl/src/tls_handshake.erl15
-rw-r--r--lib/ssl/src/tls_handshake_1_3.erl344
-rw-r--r--lib/ssl/src/tls_handshake_1_3.hrl2
-rw-r--r--lib/ssl/src/tls_record.erl10
-rw-r--r--lib/ssl/src/tls_record_1_3.erl39
-rw-r--r--lib/ssl/src/tls_v1.erl17
-rw-r--r--lib/ssl/test/property_test/ssl_eqc_handshake.erl66
-rw-r--r--lib/ssl/test/ssl_handshake_SUITE.erl2
18 files changed, 1073 insertions, 350 deletions
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
index c7dee81c71..8dc76f2638 100644
--- a/lib/ssl/src/Makefile
+++ b/lib/ssl/src/Makefile
@@ -39,66 +39,80 @@ RELSYSDIR = $(RELEASE_PATH)/lib/ssl-$(VSN)
# ----------------------------------------------------
BEHAVIOUR_MODULES= \
- ssl_session_cache_api \
- ssl_crl_cache_api
+ ssl_crl_cache_api \
+ ssl_session_cache_api
+
MODULES= \
- ssl \
- ssl_alert \
- ssl_app \
- ssl_sup \
- ssl_admin_sup\
- tls_connection_sup \
- ssl_connection_sup \
- ssl_listen_tracker_sup\
+ dtls_connection \
dtls_connection_sup \
- dtls_packet_demux \
+ dtls_handshake \
dtls_listener_sup \
- ssl_dist_sup\
- ssl_dist_admin_sup\
- ssl_dist_connection_sup\
+ dtls_packet_demux \
+ dtls_record \
+ dtls_socket \
+ dtls_v1 \
inet_tls_dist \
inet6_tls_dist \
- ssl_certificate\
- ssl_pkix_db\
+ ssl \
+ ssl_admin_sup \
+ ssl_alert \
+ ssl_app \
+ ssl_certificate \
ssl_cipher \
ssl_cipher_format \
- ssl_srp_primes \
- tls_connection \
- tls_connection_1_3 \
- dtls_connection \
- tls_sender\
ssl_config \
ssl_connection \
- tls_handshake \
- tls_handshake_1_3\
- dtls_handshake\
- ssl_handshake\
- ssl_manager \
- ssl_session \
- ssl_session_cache \
- ssl_pem_cache \
- ssl_crl\
+ ssl_connection_sup \
+ ssl_crl \
ssl_crl_cache \
ssl_crl_hash_dir \
- tls_socket \
- dtls_socket \
- tls_record \
- tls_record_1_3\
- dtls_record \
+ ssl_dh_groups \
+ ssl_dist_admin_sup \
+ ssl_dist_connection_sup \
+ ssl_dist_sup \
+ ssl_handshake \
+ ssl_listen_tracker_sup \
+ ssl_logger \
+ ssl_manager \
+ ssl_pem_cache \
+ ssl_pkix_db \
ssl_record \
+ ssl_session \
+ ssl_session_cache \
+ ssl_srp_primes \
+ ssl_sup \
ssl_v3 \
- tls_v1 \
- dtls_v1 \
- ssl_logger \
- ssl_dh_groups
+ tls_connection \
+ tls_connection_sup \
+ tls_connection_1_3 \
+ tls_handshake \
+ tls_handshake_1_3 \
+ tls_record \
+ tls_record_1_3 \
+ tls_sender \
+ tls_socket \
+ tls_v1
+
INTERNAL_HRL_FILES = \
- ssl_alert.hrl ssl_cipher.hrl \
- tls_connection.hrl dtls_connection.hrl ssl_connection.hrl \
- ssl_handshake.hrl tls_handshake.hrl tls_handshake_1_3.hrl dtls_handshake.hrl \
- ssl_api.hrl ssl_internal.hrl \
- ssl_record.hrl tls_record.hrl tls_record_1_3.hrl dtls_record.hrl ssl_srp.hrl
+ dtls_connection.hrl \
+ dtls_handshake.hrl \
+ dtls_record.hrl \
+ ssl_alert.hrl \
+ ssl_api.hrl \
+ ssl_cipher.hrl \
+ ssl_connection.hrl \
+ ssl_handshake.hrl \
+ ssl_internal.hrl \
+ ssl_record.hrl \
+ ssl_srp.hrl \
+ tls_connection.hrl \
+ tls_handshake.hrl \
+ tls_handshake_1_3.hrl \
+ tls_record.hrl \
+ tls_record_1_3.hrl
+
ERL_FILES= \
$(MODULES:%=%.erl) \
@@ -117,6 +131,10 @@ APP_TARGET= $(EBIN)/$(APP_FILE)
APPUP_SRC= $(APPUP_FILE).src
APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
+DEPDIR=$(ERL_TOP)/lib/ssl/src/deps
+DEP_FILE=$(DEPDIR)/ssl.d
+$(shell mkdir -p $(dir $(DEP_FILE)) >/dev/null)
+
# ----------------------------------------------------
# FLAGS
# ----------------------------------------------------
@@ -133,11 +151,22 @@ ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/kernel/src \
$(TARGET_FILES): $(BEHAVIOUR_TARGET_FILES)
-debug opt: $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET)
+$(DEP_FILE): $(ERL_FILES)
+ $(gen_verbose)erlc -M $(ERL_FILES) \
+ | sed "s@$(ERL_TOP)@../../..@g" \
+ | sed "s/\.$(EMULATOR)/\.$$\(EMULATOR\)/" \
+ | sed 's@^dtls_@$$(EBIN)/dtls_@' \
+ | sed 's@^inet_@$$(EBIN)/inet_@' \
+ | sed 's@^ssl_@$$(EBIN)/ssl_@' \
+ | sed 's@^tls_@$$(EBIN)/tls_@' \
+ > $(DEP_FILE)
+
+debug opt: $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET) $(DEP_FILE)
clean:
rm -f $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET) $(BEHAVIOUR_TARGET_FILES)
rm -f errs core *~
+ rm -rf $(DEPDIR)
$(APP_TARGET): $(APP_SRC) ../vsn.mk
$(vsn_verbose)sed -e 's;%VSN%;$(VSN);' $< > $@
@@ -147,7 +176,6 @@ $(APPUP_TARGET): $(APPUP_SRC) ../vsn.mk
docs:
-
# ----------------------------------------------------
# Release Target
# ----------------------------------------------------
@@ -165,24 +193,4 @@ release_docs_spec:
# ----------------------------------------------------
# Dependencies
# ----------------------------------------------------
-$(EBIN)/inet_tls_dist.$(EMULATOR): ../../kernel/include/net_address.hrl ../../kernel/include/dist.hrl ../../kernel/include/dist_util.hrl
-$(EBIN)/tls.$(EMULATOR): ssl_internal.hrl ssl_record.hrl ssl_cipher.hrl ssl_handshake.hrl ../../public_key/include/public_key.hrl
-$(EBIN)/ssl_alert.$(EMULATOR): ssl_alert.hrl ssl_record.hrl
-$(EBIN)/ssl_certificate.$(EMULATOR): ssl_internal.hrl ssl_alert.hrl ssl_handshake.hrl ../../public_key/include/public_key.hrl
-$(EBIN)/ssl_certificate_db.$(EMULATOR): ssl_internal.hrl ../../public_key/include/public_key.hrl ../../kernel/include/file.hrl
-$(EBIN)/ssl_cipher.$(EMULATOR): ssl_internal.hrl ssl_record.hrl ssl_cipher.hrl ssl_handshake.hrl ssl_alert.hrl ../../public_key/include/public_key.hrl
-$(EBIN)/tls_connection.$(EMULATOR): ssl_internal.hrl tls_connection.hrl tls_record.hrl ssl_cipher.hrl tls_handshake.hrl ssl_alert.hrl ../../public_key/include/public_key.hrl
-$(EBIN)/tls_connection_1_3.$(EMULATOR): ssl_internal.hrl tls_connection.hrl
-$(EBIN)/dtls_connection.$(EMULATOR): ssl_internal.hrl dtls_connection.hrl dtls_record.hrl ssl_cipher.hrl dtls_handshake.hrl ssl_alert.hrl ../../public_key/include/public_key.hrl
-$(EBIN)/tls_handshake.$(EMULATOR): ssl_internal.hrl tls_record.hrl ssl_cipher.hrl tls_handshake.hrl ssl_alert.hrl ../../public_key/include/public_key.hrl
-$(EBIN)/tls_handshake.$(EMULATOR): ssl_internal.hrl ssl_connection.hrl ssl_record.hrl ssl_cipher.hrl ssl_handshake.hrl ssl_alert.hrl ../../public_key/include/public_key.hrl
-$(EBIN)/tls_handshake_1_3.$(EMULATOR): tls_handshake_1_3.hrl tls_handshake.hrl ssl_internal.hrl
-$(EBIN)/ssl_manager.$(EMULATOR): ssl_internal.hrl ssl_handshake.hrl ../../kernel/include/file.hrl
-$(EBIN)/ssl_record.$(EMULATOR): ssl_internal.hrl ssl_record.hrl ssl_cipher.hrl ssl_handshake.hrl ssl_alert.hrl
-$(EBIN)/ssl_session.$(EMULATOR): ssl_internal.hrl ssl_handshake.hrl
-$(EBIN)/ssl_session_cache.$(EMULATOR): ssl_internal.hrl ssl_handshake.hrl
-$(EBIN)/ssl_session_cache_api.$(EMULATOR): ssl_internal.hrl ssl_handshake.hrl
-$(EBIN)/ssl_ssl3.$(EMULATOR): ssl_internal.hrl ssl_record.hrl ssl_cipher.hrl
-$(EBIN)/ssl_tls1.$(EMULATOR): ssl_internal.hrl ssl_record.hrl ssl_cipher.hrl
-$(EBIN)/ssl_cache.$(EMULATOR): ssl_cache.erl ssl_internal.hrl ../../public_key/include/public_key.hrl
-
+-include $(DEP_FILE)
diff --git a/lib/ssl/src/dtls_handshake.erl b/lib/ssl/src/dtls_handshake.erl
index 55aa8174a3..3dbda2c91b 100644
--- a/lib/ssl/src/dtls_handshake.erl
+++ b/lib/ssl/src/dtls_handshake.erl
@@ -79,7 +79,7 @@ client_hello(Host, Port, Cookie, ConnectionStates,
Extensions = ssl_handshake:client_hello_extensions(TLSVersion, CipherSuites,
SslOpts, ConnectionStates,
- Renegotiation),
+ Renegotiation, undefined),
Id = ssl_session:client_id({Host, Port, SslOpts}, Cache, CacheCb, OwnCert),
#client_hello{session_id = Id,
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index 524f06d52e..2c3f8bc20f 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -51,7 +51,7 @@
%% SSL/TLS protocol handling
-export([cipher_suites/0, cipher_suites/1, cipher_suites/2, filter_cipher_suites/2,
prepend_cipher_suites/2, append_cipher_suites/2,
- eccs/0, eccs/1, versions/0, groups/0,
+ eccs/0, eccs/1, versions/0, groups/0, groups/1,
format_error/1, renegotiate/1, prf/5, negotiated_protocol/1,
connection_information/1, connection_information/2]).
%% Misc
@@ -585,6 +585,13 @@ groups() ->
tls_v1:groups(4).
%%--------------------------------------------------------------------
+-spec groups(default) -> tls_v1:supported_groups().
+%% Description: returns the default groups (TLS 1.3 and later)
+%%--------------------------------------------------------------------
+groups(default) ->
+ tls_v1:default_groups(4).
+
+%%--------------------------------------------------------------------
-spec getopts(#sslsocket{}, [gen_tcp:option_name()]) ->
{ok, [gen_tcp:option()]} | {error, reason()}.
%%
@@ -988,16 +995,17 @@ handle_options(Opts0, Role, Host) ->
eccs = handle_eccs_option(proplists:get_value(eccs, Opts, eccs()),
HighestVersion),
supported_groups = handle_supported_groups_option(
- proplists:get_value(supported_groups, Opts, groups()),
+ proplists:get_value(supported_groups, Opts, groups(default)),
HighestVersion),
signature_algs =
handle_hashsigns_option(
proplists:get_value(
signature_algs,
Opts,
- default_option_role(server,
+ default_option_role_sign_algs(server,
tls_v1:default_signature_algs(HighestVersion),
- Role)),
+ Role,
+ HighestVersion)),
tls_version(HighestVersion)),
signature_algs_cert =
handle_signature_algorithms_option(
@@ -1330,15 +1338,25 @@ validate_option(customize_hostname_check, Value) when is_list(Value) ->
validate_option(Opt, Value) ->
throw({error, {options, {Opt, Value}}}).
+handle_hashsigns_option(Value, Version) when is_list(Value)
+ andalso Version >= {3, 4} ->
+ case tls_v1:signature_schemes(Version, Value) of
+ [] ->
+ throw({error, {options,
+ no_supported_signature_schemes,
+ {signature_algs, Value}}});
+ _ ->
+ Value
+ end;
handle_hashsigns_option(Value, Version) when is_list(Value)
- andalso Version >= {3, 3} ->
+ andalso Version =:= {3, 3} ->
case tls_v1:signature_algs(Version, Value) of
[] ->
throw({error, {options, no_supported_algorithms, {signature_algs, Value}}});
_ ->
Value
end;
-handle_hashsigns_option(_, Version) when Version >= {3, 3} ->
+handle_hashsigns_option(_, Version) when Version =:= {3, 3} ->
handle_hashsigns_option(tls_v1:default_signature_algs(Version), Version);
handle_hashsigns_option(_, _Version) ->
undefined.
@@ -1755,11 +1773,20 @@ handle_verify_options(Opts, CaCerts) ->
throw({error, {options, {verify, Value}}})
end.
+%% Added to handle default values for signature_algs in TLS 1.3
+default_option_role_sign_algs(_, Value, _, Version) when Version >= {3,4} ->
+ Value;
+default_option_role_sign_algs(Role, Value, Role, _) ->
+ Value;
+default_option_role_sign_algs(_, _, _, _) ->
+ undefined.
+
default_option_role(Role, Value, Role) ->
Value;
default_option_role(_,_,_) ->
undefined.
+
default_cb_info(tls) ->
{gen_tcp, tcp, tcp_closed, tcp_error};
default_cb_info(dtls) ->
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl
index ff3e0d9c90..c4b8e2172a 100644
--- a/lib/ssl/src/ssl_cipher.erl
+++ b/lib/ssl/src/ssl_cipher.erl
@@ -34,7 +34,7 @@
-include("tls_handshake_1_3.hrl").
-include_lib("public_key/include/public_key.hrl").
--export([security_parameters/2, security_parameters/3,
+-export([security_parameters/2, security_parameters/3, security_parameters_1_3/3,
cipher_init/3, nonce_seed/2, decipher/6, cipher/5, aead_encrypt/5, aead_decrypt/6,
suites/1, all_suites/1, crypto_support_filters/0,
chacha_suites/1, anonymous_suites/1, psk_suites/1, psk_suites_anon/1,
@@ -46,6 +46,9 @@
is_stream_ciphersuite/1, signature_scheme/1,
scheme_to_components/1, hash_size/1]).
+%% RFC 8446 TLS 1.3
+-export([generate_client_shares/1, generate_server_share/1]).
+
-compile(inline).
-type cipher_enum() :: integer().
@@ -85,6 +88,24 @@ security_parameters(Version, CipherSuite, SecParams) ->
prf_algorithm = prf_algorithm(PrfHashAlg, Version),
hash_size = hash_size(Hash)}.
+security_parameters_1_3(SecParams, ClientRandom, CipherSuite) ->
+ #{cipher := Cipher,
+ mac := Hash,
+ prf := PrfHashAlg} = ssl_cipher_format:suite_definition(CipherSuite),
+ SecParams#security_parameters{
+ client_random = ClientRandom,
+ cipher_suite = CipherSuite,
+ bulk_cipher_algorithm = bulk_cipher_algorithm(Cipher),
+ cipher_type = type(Cipher),
+ key_size = effective_key_bits(Cipher),
+ expanded_key_material_length = expanded_key_material(Cipher),
+ key_material_length = key_material(Cipher),
+ iv_size = iv_size(Cipher),
+ mac_algorithm = mac_algorithm(Hash),
+ prf_algorithm =prf_algorithm(PrfHashAlg, {3,4}),
+ hash_size = hash_size(Hash),
+ compression_algorithm = 0}.
+
%%--------------------------------------------------------------------
-spec cipher_init(cipher_enum(), binary(), binary()) -> #cipher_state{}.
%%
@@ -1188,3 +1209,36 @@ filter_keyuse_suites(Use, KeyUse, CipherSuits, Suites) ->
false ->
CipherSuits -- Suites
end.
+
+generate_server_share(Group) ->
+ Key = generate_key_exchange(Group),
+ #key_share_server_hello{
+ server_share = #key_share_entry{
+ group = Group,
+ key_exchange = Key
+ }}.
+
+generate_client_shares([]) ->
+ #key_share_client_hello{client_shares = []};
+generate_client_shares(Groups) ->
+ generate_client_shares(Groups, []).
+%%
+generate_client_shares([], Acc) ->
+ #key_share_client_hello{client_shares = lists:reverse(Acc)};
+generate_client_shares([Group|Groups], Acc) ->
+ Key = generate_key_exchange(Group),
+ KeyShareEntry = #key_share_entry{
+ group = Group,
+ key_exchange = Key
+ },
+ generate_client_shares(Groups, [KeyShareEntry|Acc]).
+
+
+generate_key_exchange(secp256r1) ->
+ public_key:generate_key({namedCurve, secp256r1});
+generate_key_exchange(secp384r1) ->
+ public_key:generate_key({namedCurve, secp384r1});
+generate_key_exchange(secp521r1) ->
+ public_key:generate_key({namedCurve, secp521r1});
+generate_key_exchange(FFDHE) ->
+ public_key:generate_key(ssl_dh_groups:dh_params(FFDHE)).
diff --git a/lib/ssl/src/ssl_connection.hrl b/lib/ssl/src/ssl_connection.hrl
index 66e3182313..91467e9b26 100644
--- a/lib/ssl/src/ssl_connection.hrl
+++ b/lib/ssl/src/ssl_connection.hrl
@@ -96,7 +96,8 @@
%% The mecahnism is also usefull in TLS although we do not
%% need to worry about packet loss in TLS. In DTLS we need to track DTLS handshake seqnr
flight_state = reliable, %% reliable | {retransmit, integer()}| {waiting, ref(), integer()} - last two is used in DTLS over udp.
- protocol_specific = #{} :: map()
+ protocol_specific = #{} :: map(),
+ key_share
}).
-define(DEFAULT_DIFFIE_HELLMAN_PARAMS,
#'DHParameter'{prime = ?DEFAULT_DIFFIE_HELLMAN_PRIME,
diff --git a/lib/ssl/src/ssl_dh_groups.erl b/lib/ssl/src/ssl_dh_groups.erl
index 36c97ed13e..20d53de430 100644
--- a/lib/ssl/src/ssl_dh_groups.erl
+++ b/lib/ssl/src/ssl_dh_groups.erl
@@ -20,12 +20,15 @@
-module(ssl_dh_groups).
+-include_lib("public_key/include/public_key.hrl").
+
-export([modp2048_generator/0, modp2048_prime/0,
ffdhe2048_generator/0, ffdhe2048_prime/0,
ffdhe3072_generator/0, ffdhe3072_prime/0,
ffdhe4096_generator/0, ffdhe4096_prime/0,
ffdhe6144_generator/0, ffdhe6144_prime/0,
- ffdhe8192_generator/0, ffdhe8192_prime/0]).
+ ffdhe8192_generator/0, ffdhe8192_prime/0,
+ dh_params/1]).
%% RFC3526 - 2048-bit MODP Group
%% This group is assigned id 14.
@@ -441,3 +444,24 @@ ffdhe8192_prime() ->
"97D11D49" "F7A8443D" "0822E506" "A9F4614E" "011E2A94" "838FF88C"
"D68C8BB7" "C5C6424C" "FFFFFFFF" "FFFFFFFF",
list_to_integer(P, 16).
+
+dh_params(ffdhe2048) ->
+ #'DHParameter'{
+ prime = ffdhe2048_prime(),
+ base = ffdhe2048_generator()};
+dh_params(ffdhe3072) ->
+ #'DHParameter'{
+ prime = ffdhe3072_prime(),
+ base = ffdhe3072_generator()};
+dh_params(ffdhe4096) ->
+ #'DHParameter'{
+ prime = ffdhe4096_prime(),
+ base = ffdhe4096_generator()};
+dh_params(ffdhe6144) ->
+ #'DHParameter'{
+ prime = ffdhe6144_prime(),
+ base = ffdhe6144_generator()};
+dh_params(ffdhe8192) ->
+ #'DHParameter'{
+ prime = ffdhe8192_prime(),
+ base = ffdhe8192_generator()}.
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index 39a627c0a2..417e5d9eb6 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -30,6 +30,7 @@
-include("ssl_alert.hrl").
-include("ssl_internal.hrl").
-include("ssl_srp.hrl").
+-include("tls_handshake_1_3.hrl").
-include_lib("public_key/include/public_key.hrl").
-export_type([ssl_handshake/0, ssl_handshake_history/0,
@@ -60,7 +61,7 @@
-export([encode_handshake/2, encode_hello_extensions/1, encode_extensions/1, encode_extensions/2,
encode_client_protocol_negotiation/2, encode_protocols_advertised_on_server/1]).
%% Decode
--export([decode_handshake/3, decode_vector/1, decode_hello_extensions/3, decode_extensions/2,
+-export([decode_handshake/3, decode_vector/1, decode_hello_extensions/3, decode_extensions/3,
decode_server_key/3, decode_client_key/3,
decode_suites/2
]).
@@ -71,13 +72,15 @@
premaster_secret/2, premaster_secret/3, premaster_secret/4]).
%% Extensions handling
--export([client_hello_extensions/5,
+-export([client_hello_extensions/6,
handle_client_hello_extensions/9, %% Returns server hello extensions
handle_server_hello_extensions/9, select_curve/2, select_curve/3,
select_hashsign/4, select_hashsign/5,
- select_hashsign_algs/3, empty_extensions/2
+ select_hashsign_algs/3, empty_extensions/2, add_server_share/2
]).
+-export([get_cert_params/1]).
+
%%====================================================================
%% Create handshake messages
%%====================================================================
@@ -679,12 +682,29 @@ encode_extensions([#client_hello_versions{versions = Versions0} | Rest], Acc) ->
VerLen = byte_size(Versions),
Len = VerLen + 2,
encode_extensions(Rest, <<?UINT16(?SUPPORTED_VERSIONS_EXT),
- ?UINT16(Len), ?UINT16(VerLen), Versions/binary, Acc/binary>>);
+ ?UINT16(Len), ?UINT16(VerLen), Versions/binary, Acc/binary>>);
encode_extensions([#server_hello_selected_version{selected_version = Version0} | Rest], Acc) ->
Version = encode_versions([Version0]),
Len = byte_size(Version), %% 2
encode_extensions(Rest, <<?UINT16(?SUPPORTED_VERSIONS_EXT),
- ?UINT16(Len), Version/binary, Acc/binary>>).
+ ?UINT16(Len), Version/binary, Acc/binary>>);
+encode_extensions([#key_share_client_hello{client_shares = ClientShares0} | Rest], Acc) ->
+ ClientShares = encode_client_shares(ClientShares0),
+ ClientSharesLen = byte_size(ClientShares),
+ Len = ClientSharesLen + 2,
+ encode_extensions(Rest, <<?UINT16(?KEY_SHARE_EXT),
+ ?UINT16(Len), ?UINT16(ClientSharesLen),
+ ClientShares/binary, Acc/binary>>);
+encode_extensions([#key_share_server_hello{server_share = ServerShare0} | Rest], Acc) ->
+ ServerShare = encode_key_share_entry(ServerShare0),
+ Len = byte_size(ServerShare),
+ encode_extensions(Rest, <<?UINT16(?KEY_SHARE_EXT),
+ ?UINT16(Len), ServerShare/binary, Acc/binary>>);
+encode_extensions([#key_share_hello_retry_request{selected_group = Group0} | Rest], Acc) ->
+ Group = tls_v1:group_to_enum(Group0),
+ encode_extensions(Rest, <<?UINT16(?KEY_SHARE_EXT),
+ ?UINT16(2), ?UINT16(Group), Acc/binary>>).
+
encode_client_protocol_negotiation(undefined, _) ->
undefined;
@@ -726,7 +746,7 @@ decode_handshake(Version, ?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32
Cipher_suite:2/binary, ?BYTE(Comp_method),
?UINT16(ExtLen), Extensions:ExtLen/binary>>) ->
- HelloExtensions = decode_hello_extensions(Extensions, Version, server),
+ HelloExtensions = decode_hello_extensions(Extensions, Version, server_hello),
#server_hello{
server_version = {Major,Minor},
@@ -783,25 +803,27 @@ decode_vector(<<?UINT16(Len), Vector:Len/binary>>) ->
Vector.
%%--------------------------------------------------------------------
--spec decode_hello_extensions(binary(), ssl_record:ssl_version(), client | server) -> map().
+-spec decode_hello_extensions(binary(), ssl_record:ssl_version(), atom()) -> map().
%%
%% Description: Decodes TLS hello extensions
%%--------------------------------------------------------------------
-decode_hello_extensions(Extensions, Version, Role) ->
+decode_hello_extensions(Extensions, Version, MessageType0) ->
+ %% Convert legacy atoms
MessageType =
- case Role of
+ case MessageType0 of
client -> client_hello;
- server -> server_hello
+ server -> server_hello;
+ T -> T
end,
- decode_extensions(Extensions, Version, empty_extensions(Version, MessageType)).
+ decode_extensions(Extensions, Version, MessageType, empty_extensions(Version, MessageType)).
%%--------------------------------------------------------------------
--spec decode_extensions(binary(),tuple()) -> map().
+-spec decode_extensions(binary(),tuple(), atom()) -> map().
%%
%% Description: Decodes TLS hello extensions
%%--------------------------------------------------------------------
-decode_extensions(Extensions, Version) ->
- decode_extensions(Extensions, Version, empty_extensions()).
+decode_extensions(Extensions, Version, MessageType) ->
+ decode_extensions(Extensions, Version, MessageType, empty_extensions()).
%%--------------------------------------------------------------------
-spec decode_server_key(binary(), ssl_cipher_format:key_algo(), ssl_record:ssl_version()) ->
@@ -1011,21 +1033,20 @@ premaster_secret(EncSecret, #{algorithm := rsa} = Engine) ->
%%====================================================================
%% Extensions handling
%%====================================================================
-client_hello_extensions(Version, CipherSuites, SslOpts, ConnectionStates, Renegotiation) ->
+client_hello_extensions(Version, CipherSuites, SslOpts, ConnectionStates, Renegotiation, KeyShare) ->
HelloExtensions0 = add_tls12_extensions(Version, SslOpts, ConnectionStates, Renegotiation),
HelloExtensions1 = add_common_extensions(Version, HelloExtensions0, CipherSuites, SslOpts),
- maybe_add_tls13_extensions(Version, HelloExtensions1, SslOpts).
+ maybe_add_tls13_extensions(Version, HelloExtensions1, SslOpts, KeyShare).
-add_tls12_extensions(Version,
- #ssl_options{signature_algs = SupportedHashSigns} = SslOpts,
+add_tls12_extensions(_Version,
+ SslOpts,
ConnectionStates,
Renegotiation) ->
SRP = srp_user(SslOpts),
#{renegotiation_info => renegotiation_info(tls_record, client,
ConnectionStates, Renegotiation),
srp => SRP,
- signature_algs => available_signature_algs(SupportedHashSigns, Version),
alpn => encode_alpn(SslOpts#ssl_options.alpn_advertised_protocols, Renegotiation),
next_protocol_negotiation =>
encode_client_protocol_negotiation(SslOpts#ssl_options.next_protocol_selector,
@@ -1038,16 +1059,19 @@ add_common_extensions({3,4},
HelloExtensions,
_CipherSuites,
#ssl_options{eccs = SupportedECCs,
- supported_groups = Groups}) ->
+ supported_groups = Groups,
+ signature_algs = SignatureSchemes}) ->
{EcPointFormats, _} =
client_ecc_extensions(SupportedECCs),
HelloExtensions#{ec_point_formats => EcPointFormats,
- elliptic_curves => Groups};
+ elliptic_curves => Groups,
+ signature_algs => signature_algs_ext(SignatureSchemes)};
-add_common_extensions(_Version,
+add_common_extensions(Version,
HelloExtensions,
CipherSuites,
- #ssl_options{eccs = SupportedECCs}) ->
+ #ssl_options{eccs = SupportedECCs,
+ signature_algs = SupportedHashSigns}) ->
{EcPointFormats, EllipticCurves} =
case advertises_ec_ciphers(
@@ -1059,20 +1083,93 @@ add_common_extensions(_Version,
{undefined, undefined}
end,
HelloExtensions#{ec_point_formats => EcPointFormats,
- elliptic_curves => EllipticCurves}.
+ elliptic_curves => EllipticCurves,
+ signature_algs => available_signature_algs(SupportedHashSigns, Version)}.
maybe_add_tls13_extensions({3,4},
- HelloExtensions,
+ HelloExtensions0,
#ssl_options{signature_algs_cert = SignatureSchemes,
- versions = SupportedVersions}) ->
- HelloExtensions#{client_hello_versions =>
- #client_hello_versions{versions = SupportedVersions},
- signature_algs_cert =>
- signature_algs_cert(SignatureSchemes)};
-maybe_add_tls13_extensions(_, HelloExtensions, _) ->
+ versions = SupportedVersions},
+ KeyShare) ->
+ HelloExtensions =
+ HelloExtensions0#{client_hello_versions =>
+ #client_hello_versions{versions = SupportedVersions},
+ signature_algs_cert =>
+ signature_algs_cert(SignatureSchemes)},
+ maybe_add_key_share(HelloExtensions, KeyShare);
+maybe_add_tls13_extensions(_, HelloExtensions, _, _) ->
HelloExtensions.
+
+%% TODO: Add support for PSK key establishment
+
+%% RFC 8446 (TLS 1.3) - 4.2.8. Key Share
+%%
+%% 4.2.8.1. Diffie-Hellman Parameters
+%% Diffie-Hellman [DH76] parameters for both clients and servers are
+%% encoded in the opaque key_exchange field of a KeyShareEntry in a
+%% KeyShare structure. The opaque value contains the Diffie-Hellman
+%% public value (Y = g^X mod p) for the specified group (see [RFC7919]
+%% for group definitions) encoded as a big-endian integer and padded to
+%% the left with zeros to the size of p in bytes.
+%%
+%% 4.2.8.2. ECDHE Parameters
+%%
+%% ECDHE parameters for both clients and servers are encoded in the
+%% opaque key_exchange field of a KeyShareEntry in a KeyShare structure.
+%%
+%% For secp256r1, secp384r1, and secp521r1, the contents are the
+%% serialized value of the following struct:
+%%
+%% struct {
+%% uint8 legacy_form = 4;
+%% opaque X[coordinate_length];
+%% opaque Y[coordinate_length];
+%% } UncompressedPointRepresentation;
+%%
+%% X and Y, respectively, are the binary representations of the x and y
+%% values in network byte order. There are no internal length markers,
+%% so each number representation occupies as many octets as implied by
+%% the curve parameters. For P-256, this means that each of X and Y use
+%% 32 octets, padded on the left by zeros if necessary. For P-384, they
+%% take 48 octets each. For P-521, they take 66 octets each.
+maybe_add_key_share(HelloExtensions, undefined) ->
+ HelloExtensions;
+maybe_add_key_share(HelloExtensions, KeyShare) ->
+ #key_share_client_hello{client_shares = ClientShares0} = KeyShare,
+ %% Keep only public keys
+ ClientShares = lists:map(fun kse_remove_private_key/1, ClientShares0),
+ HelloExtensions#{key_share => #key_share_client_hello{
+ client_shares = ClientShares}}.
+
+add_server_share(Extensions, KeyShare) ->
+ #key_share_server_hello{server_share = ServerShare0} = KeyShare,
+ %% Keep only public keys
+ ServerShare = kse_remove_private_key(ServerShare0),
+ Extensions#{key_share => #key_share_server_hello{
+ server_share = ServerShare}}.
+
+kse_remove_private_key(#key_share_entry{
+ group = Group,
+ key_exchange =
+ #'ECPrivateKey'{publicKey = PublicKey}}) ->
+ #key_share_entry{
+ group = Group,
+ key_exchange = PublicKey};
+kse_remove_private_key(#key_share_entry{
+ group = Group,
+ key_exchange =
+ {PublicKey, _}}) ->
+ #key_share_entry{
+ group = Group,
+ key_exchange = PublicKey}.
+
+signature_algs_ext(undefined) ->
+ undefined;
+signature_algs_ext(SignatureSchemes) ->
+ #signature_algorithms{signature_scheme_list = SignatureSchemes}.
+
signature_algs_cert(undefined) ->
undefined;
signature_algs_cert(SignatureSchemes) ->
@@ -1948,6 +2045,20 @@ encode_versions([], Acc) ->
encode_versions([{M,N}|T], Acc) ->
encode_versions(T, <<?BYTE(M),?BYTE(N),Acc/binary>>).
+encode_client_shares(ClientShares) ->
+ encode_client_shares(ClientShares, <<>>).
+%%
+encode_client_shares([], Acc) ->
+ Acc;
+encode_client_shares([KeyShareEntry0|T], Acc) ->
+ KeyShareEntry = encode_key_share_entry(KeyShareEntry0),
+ encode_client_shares(T, <<Acc/binary,KeyShareEntry/binary>>).
+
+encode_key_share_entry(#key_share_entry{
+ group = Group,
+ key_exchange = KeyExchange}) ->
+ Len = byte_size(KeyExchange),
+ <<?UINT16((tls_v1:group_to_enum(Group))),?UINT16(Len),KeyExchange/binary>>.
hello_extensions_list(HelloExtensions) ->
[Ext || {_, Ext} <- maps:to_list(HelloExtensions), Ext =/= undefined].
@@ -2090,19 +2201,19 @@ dec_server_key_signature(Params, <<?UINT16(Len), Signature:Len/binary>>, _) ->
dec_server_key_signature(_, _, _) ->
throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, failed_to_decrypt_server_key_sign)).
-decode_extensions(<<>>, _Version, Acc) ->
+decode_extensions(<<>>, _Version, _MessageType, Acc) ->
Acc;
decode_extensions(<<?UINT16(?ALPN_EXT), ?UINT16(ExtLen), ?UINT16(Len),
- ExtensionData:Len/binary, Rest/binary>>, Version, Acc)
+ ExtensionData:Len/binary, Rest/binary>>, Version, MessageType, Acc)
when Len + 2 =:= ExtLen ->
ALPN = #alpn{extension_data = ExtensionData},
- decode_extensions(Rest, Version, Acc#{alpn => ALPN});
+ decode_extensions(Rest, Version, MessageType, Acc#{alpn => ALPN});
decode_extensions(<<?UINT16(?NEXTPROTONEG_EXT), ?UINT16(Len),
- ExtensionData:Len/binary, Rest/binary>>, Version, Acc) ->
+ ExtensionData:Len/binary, Rest/binary>>, Version, MessageType, Acc) ->
NextP = #next_protocol_negotiation{extension_data = ExtensionData},
- decode_extensions(Rest, Version, Acc#{next_protocol_negotiation => NextP});
+ decode_extensions(Rest, Version, MessageType, Acc#{next_protocol_negotiation => NextP});
decode_extensions(<<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len),
- Info:Len/binary, Rest/binary>>, Version, Acc) ->
+ Info:Len/binary, Rest/binary>>, Version, MessageType, Acc) ->
RenegotiateInfo = case Len of
1 -> % Initial handshake
Info; % should be <<0>> will be matched in handle_renegotiation_info
@@ -2111,49 +2222,53 @@ decode_extensions(<<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len),
<<?BYTE(VerifyLen), VerifyInfo/binary>> = Info,
VerifyInfo
end,
- decode_extensions(Rest, Version, Acc#{renegotiation_info =>
- #renegotiation_info{renegotiated_connection =
- RenegotiateInfo}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{renegotiation_info =>
+ #renegotiation_info{renegotiated_connection =
+ RenegotiateInfo}});
decode_extensions(<<?UINT16(?SRP_EXT), ?UINT16(Len), ?BYTE(SRPLen),
- SRP:SRPLen/binary, Rest/binary>>, Version, Acc)
+ SRP:SRPLen/binary, Rest/binary>>, Version, MessageType, Acc)
when Len == SRPLen + 2 ->
- decode_extensions(Rest, Version, Acc#{srp => #srp{username = SRP}});
+ decode_extensions(Rest, Version, MessageType, Acc#{srp => #srp{username = SRP}});
decode_extensions(<<?UINT16(?SIGNATURE_ALGORITHMS_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc)
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc)
when Version < {3,4} ->
SignAlgoListLen = Len - 2,
<<?UINT16(SignAlgoListLen), SignAlgoList/binary>> = ExtData,
HashSignAlgos = [{ssl_cipher:hash_algorithm(Hash), ssl_cipher:sign_algorithm(Sign)} ||
<<?BYTE(Hash), ?BYTE(Sign)>> <= SignAlgoList],
- decode_extensions(Rest, Version, Acc#{signature_algs =>
- #hash_sign_algos{hash_sign_algos =
- HashSignAlgos}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{signature_algs =>
+ #hash_sign_algos{hash_sign_algos =
+ HashSignAlgos}});
decode_extensions(<<?UINT16(?SIGNATURE_ALGORITHMS_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc)
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc)
when Version =:= {3,4} ->
SignSchemeListLen = Len - 2,
<<?UINT16(SignSchemeListLen), SignSchemeList/binary>> = ExtData,
SignSchemes = [ssl_cipher:signature_scheme(SignScheme) ||
<<?UINT16(SignScheme)>> <= SignSchemeList],
- decode_extensions(Rest, Version, Acc#{signature_algs =>
- #signature_algorithms{
- signature_scheme_list = SignSchemes}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{signature_algs =>
+ #signature_algorithms{
+ signature_scheme_list = SignSchemes}});
decode_extensions(<<?UINT16(?SIGNATURE_ALGORITHMS_CERT_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc) ->
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc) ->
SignSchemeListLen = Len - 2,
<<?UINT16(SignSchemeListLen), SignSchemeList/binary>> = ExtData,
SignSchemes = [ssl_cipher:signature_scheme(SignScheme) ||
<<?UINT16(SignScheme)>> <= SignSchemeList],
- decode_extensions(Rest, Version, Acc#{signature_algs_cert =>
- #signature_algorithms_cert{
- signature_scheme_list = SignSchemes}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{signature_algs_cert =>
+ #signature_algorithms_cert{
+ signature_scheme_list = SignSchemes}});
decode_extensions(<<?UINT16(?ELLIPTIC_CURVES_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc)
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc)
when Version < {3,4} ->
<<?UINT16(_), EllipticCurveList/binary>> = ExtData,
%% Ignore unknown curves
@@ -2166,13 +2281,13 @@ decode_extensions(<<?UINT16(?ELLIPTIC_CURVES_EXT), ?UINT16(Len),
end
end,
EllipticCurves = lists:filtermap(Pick, [ECC || <<ECC:16>> <= EllipticCurveList]),
- decode_extensions(Rest, Version, Acc#{elliptic_curves =>
- #elliptic_curves{elliptic_curve_list =
- EllipticCurves}});
-
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{elliptic_curves =>
+ #elliptic_curves{elliptic_curve_list =
+ EllipticCurves}});
decode_extensions(<<?UINT16(?ELLIPTIC_CURVES_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc)
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc)
when Version =:= {3,4} ->
<<?UINT16(_), GroupList/binary>> = ExtData,
%% Ignore unknown curves
@@ -2185,47 +2300,84 @@ decode_extensions(<<?UINT16(?ELLIPTIC_CURVES_EXT), ?UINT16(Len),
end
end,
SupportedGroups = lists:filtermap(Pick, [Group || <<Group:16>> <= GroupList]),
- decode_extensions(Rest, Version, Acc#{elliptic_curves =>
- #supported_groups{supported_groups =
- SupportedGroups}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{elliptic_curves =>
+ #supported_groups{supported_groups =
+ SupportedGroups}});
decode_extensions(<<?UINT16(?EC_POINT_FORMATS_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc) ->
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc) ->
<<?BYTE(_), ECPointFormatList/binary>> = ExtData,
ECPointFormats = binary_to_list(ECPointFormatList),
- decode_extensions(Rest, Version, Acc#{ec_point_formats =>
- #ec_point_formats{ec_point_format_list =
- ECPointFormats}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{ec_point_formats =>
+ #ec_point_formats{ec_point_format_list =
+ ECPointFormats}});
decode_extensions(<<?UINT16(?SNI_EXT), ?UINT16(Len),
- Rest/binary>>, Version, Acc) when Len == 0 ->
- decode_extensions(Rest, Version, Acc#{sni => #sni{hostname = ""}}); %% Server may send an empy SNI
+ Rest/binary>>, Version, MessageType, Acc) when Len == 0 ->
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{sni => #sni{hostname = ""}}); %% Server may send an empy SNI
decode_extensions(<<?UINT16(?SNI_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc) ->
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc) ->
<<?UINT16(_), NameList/binary>> = ExtData,
- decode_extensions(Rest, Version, Acc#{sni => dec_sni(NameList)});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{sni => dec_sni(NameList)});
decode_extensions(<<?UINT16(?SUPPORTED_VERSIONS_EXT), ?UINT16(Len),
- ExtData:Len/binary, Rest/binary>>, Version, Acc) when Len > 2 ->
+ ExtData:Len/binary, Rest/binary>>, Version, MessageType, Acc) when Len > 2 ->
<<?UINT16(_),Versions/binary>> = ExtData,
- decode_extensions(Rest, Version, Acc#{client_hello_versions =>
- #client_hello_versions{
- versions = decode_versions(Versions)}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{client_hello_versions =>
+ #client_hello_versions{
+ versions = decode_versions(Versions)}});
decode_extensions(<<?UINT16(?SUPPORTED_VERSIONS_EXT), ?UINT16(Len),
- ?UINT16(SelectedVersion), Rest/binary>>, Version, Acc)
+ ?UINT16(SelectedVersion), Rest/binary>>, Version, MessageType, Acc)
when Len =:= 2, SelectedVersion =:= 16#0304 ->
- decode_extensions(Rest, Version, Acc#{server_hello_selected_version =>
- #server_hello_selected_version{selected_version =
- {3,4}}});
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{server_hello_selected_version =>
+ #server_hello_selected_version{selected_version =
+ {3,4}}});
+
+decode_extensions(<<?UINT16(?KEY_SHARE_EXT), ?UINT16(Len),
+ ExtData:Len/binary, Rest/binary>>,
+ Version, MessageType = client_hello, Acc) ->
+ <<?UINT16(_),ClientShares/binary>> = ExtData,
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{key_share =>
+ #key_share_client_hello{
+ client_shares = decode_client_shares(ClientShares)}});
+
+decode_extensions(<<?UINT16(?KEY_SHARE_EXT), ?UINT16(Len),
+ ExtData:Len/binary, Rest/binary>>,
+ Version, MessageType = server_hello, Acc) ->
+ <<?UINT16(Group),?UINT16(KeyLen),KeyExchange:KeyLen/binary>> = ExtData,
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{key_share =>
+ #key_share_server_hello{
+ server_share =
+ #key_share_entry{
+ group = tls_v1:enum_to_group(Group),
+ key_exchange = KeyExchange}}});
+
+decode_extensions(<<?UINT16(?KEY_SHARE_EXT), ?UINT16(Len),
+ ExtData:Len/binary, Rest/binary>>,
+ Version, MessageType = hello_retry_request, Acc) ->
+ <<?UINT16(Group),Rest/binary>> = ExtData,
+ decode_extensions(Rest, Version, MessageType,
+ Acc#{key_share =>
+ #key_share_hello_retry_request{
+ selected_group = tls_v1:enum_to_group(Group)}});
+
%% Ignore data following the ClientHello (i.e.,
%% extensions) if not understood.
-decode_extensions(<<?UINT16(_), ?UINT16(Len), _Unknown:Len/binary, Rest/binary>>, Version, Acc) ->
- decode_extensions(Rest, Version, Acc);
+decode_extensions(<<?UINT16(_), ?UINT16(Len), _Unknown:Len/binary, Rest/binary>>, Version, MessageType, Acc) ->
+ decode_extensions(Rest, Version, MessageType, Acc);
%% This theoretically should not happen if the protocol is followed, but if it does it is ignored.
-decode_extensions(_, _, Acc) ->
+decode_extensions(_, _, _, Acc) ->
Acc.
dec_hashsign(<<?BYTE(HashAlgo), ?BYTE(SignAlgo)>>) ->
@@ -2252,6 +2404,17 @@ decode_versions(<<?BYTE(M),?BYTE(N),Rest/binary>>, Acc) ->
decode_versions(Rest, [{M,N}|Acc]).
+decode_client_shares(ClientShares) ->
+ decode_client_shares(ClientShares, []).
+%%
+decode_client_shares(<<>>, Acc) ->
+ lists:reverse(Acc);
+decode_client_shares(<<?UINT16(Group),?UINT16(Len),KeyExchange:Len/binary,Rest/binary>>, Acc) ->
+ decode_client_shares(Rest, [#key_share_entry{
+ group = tls_v1:enum_to_group(Group),
+ key_exchange= KeyExchange
+ }|Acc]).
+
decode_next_protocols({next_protocol_negotiation, Protocols}) ->
decode_protocols(Protocols, []).
diff --git a/lib/ssl/src/ssl_handshake.hrl b/lib/ssl/src/ssl_handshake.hrl
index 1fd143a641..d4233bea9b 100644
--- a/lib/ssl/src/ssl_handshake.hrl
+++ b/lib/ssl/src/ssl_handshake.hrl
@@ -107,7 +107,8 @@
sni,
client_hello_versions,
server_hello_selected_version,
- signature_algs_cert
+ signature_algs_cert,
+ key_share
}).
-record(server_hello, {
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index 29988edf76..5e6ba652f0 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -88,6 +88,7 @@
%% gen_statem callbacks
-export([callback_mode/0, terminate/3, code_change/4, format_status/2]).
+-export([encode_handshake/4]).
-define(DIST_CNTRL_SPAWN_OPTS, [{priority, max}]).
@@ -225,7 +226,8 @@ handle_common_event(internal, #ssl_tls{type = ?HANDSHAKE, fragment = Data},
negotiated_version = Version,
ssl_options = Options} = State0) ->
try
- {Packets, Buf} = tls_handshake:get_tls_handshake(Version,Data,Buf0, Options),
+ EffectiveVersion = effective_version(Version, Options),
+ {Packets, Buf} = tls_handshake:get_tls_handshake(EffectiveVersion,Data,Buf0, Options),
State1 =
State0#state{protocol_buffers =
Buffers#protocol_buffers{tls_handshake_buffer = Buf}},
@@ -498,12 +500,12 @@ init({call, From}, {start, Timeout},
session_cache = Cache,
session_cache_cb = CacheCb
} = State0) ->
+ KeyShare = maybe_generate_client_shares(SslOpts),
Timer = ssl_connection:start_or_recv_cancel_timer(Timeout, From),
Hello = tls_handshake:client_hello(Host, Port, ConnectionStates0, SslOpts,
- Cache, CacheCb, Renegotiation, Cert),
-
- Version = Hello#client_hello.client_version,
- HelloVersion = tls_record:hello_version(Version, SslOpts#ssl_options.versions),
+ Cache, CacheCb, Renegotiation, Cert, KeyShare),
+
+ HelloVersion = tls_record:hello_version(SslOpts#ssl_options.versions),
Handshake0 = ssl_handshake:init_handshake_history(),
{BinMsg, ConnectionStates, Handshake} =
encode_handshake(Hello, HelloVersion, ConnectionStates0, Handshake0),
@@ -517,12 +519,13 @@ init({call, From}, {start, Timeout},
ssl_logger:debug(SslOpts#ssl_options.log_level, HelloMsg, #{domain => [otp,ssl,handshake]}),
ssl_logger:debug(SslOpts#ssl_options.log_level, Report, #{domain => [otp,ssl,tls_record]}),
State1 = State0#state{connection_states = ConnectionStates,
- negotiated_version = Version, %% Requested version
+ negotiated_version = HelloVersion, %% Requested version
session =
Session0#session{session_id = Hello#client_hello.session_id},
tls_handshake_history = Handshake,
start_or_recv_from = From,
- timer = Timer},
+ timer = Timer,
+ key_share = KeyShare},
{Record, State} = next_record(State1),
next_event(hello, Record, State);
init(Type, Event, State) ->
@@ -569,41 +572,36 @@ hello(internal, #client_hello{client_version = ClientVersion} = Hello,
negotiated_protocol = CurrentProtocol,
key_algorithm = KeyExAlg,
ssl_options = SslOpts} = State) ->
- case tls_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb,
- ConnectionStates0, Cert, KeyExAlg}, Renegotiation) of
- #alert{} = Alert ->
- ssl_connection:handle_own_alert(Alert, ClientVersion, hello,
- State#state{negotiated_version
- = ClientVersion});
- {Version, {Type, Session},
- ConnectionStates, Protocol0, ServerHelloExt, HashSign} when Version < {3,4} ->
- Protocol = case Protocol0 of
- undefined -> CurrentProtocol;
- _ -> Protocol0
- end,
- gen_handshake(?FUNCTION_NAME, internal, {common_client_hello, Type, ServerHelloExt},
- State#state{connection_states = ConnectionStates,
- negotiated_version = Version,
- hashsign_algorithm = HashSign,
- client_hello_version = ClientVersion,
- session = Session,
- negotiated_protocol = Protocol});
- %% TLS 1.3
- {Version, {Type, Session},
- ConnectionStates, Protocol0, ServerHelloExt, HashSign} ->
- Protocol = case Protocol0 of
- undefined -> CurrentProtocol;
- _ -> Protocol0
- end,
- tls_connection_1_3:gen_handshake(?FUNCTION_NAME,
- internal,
- {common_client_hello, Type, ServerHelloExt},
- State#state{connection_states = ConnectionStates,
- negotiated_version = Version,
- hashsign_algorithm = HashSign,
- client_hello_version = ClientVersion,
- session = Session,
- negotiated_protocol = Protocol})
+ case choose_tls_version(SslOpts, Hello) of
+ 'tls_v1.3' ->
+ %% Continue in TLS 1.3 'start' state
+ {next_state, start, State, [{next_event, internal, Hello}]};
+ 'tls_v1.2' ->
+ case tls_handshake:hello(Hello,
+ SslOpts,
+ {Port, Session0, Cache, CacheCb,
+ ConnectionStates0, Cert, KeyExAlg},
+ Renegotiation) of
+ #alert{} = Alert ->
+ ssl_connection:handle_own_alert(Alert, ClientVersion, hello,
+ State#state{negotiated_version
+ = ClientVersion});
+ {Version, {Type, Session},
+ ConnectionStates, Protocol0, ServerHelloExt, HashSign} ->
+ Protocol = case Protocol0 of
+ undefined -> CurrentProtocol;
+ _ -> Protocol0
+ end,
+ gen_handshake(?FUNCTION_NAME,
+ internal,
+ {common_client_hello, Type, ServerHelloExt},
+ State#state{connection_states = ConnectionStates,
+ negotiated_version = Version,
+ hashsign_algorithm = HashSign,
+ client_hello_version = ClientVersion,
+ session = Session,
+ negotiated_protocol = Protocol})
+ end
end;
hello(internal, #server_hello{} = Hello,
#state{connection_states = ConnectionStates0,
@@ -674,7 +672,7 @@ connection(internal, #hello_request{},
ssl_options = SslOpts,
connection_states = ConnectionStates} = State0) ->
Hello = tls_handshake:client_hello(Host, Port, ConnectionStates, SslOpts,
- Cache, CacheCb, Renegotiation, Cert),
+ Cache, CacheCb, Renegotiation, Cert, undefined),
{State1, Actions} = send_handshake(Hello, State0),
{Record, State} =
next_record(
@@ -723,108 +721,108 @@ downgrade(Type, Event, State) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
start(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
start(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec negotiated(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
negotiated(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
negotiated(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec recvd_ch(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
recvd_ch(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
recvd_ch(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_cert(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_cert(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_cert(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_cv(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_cv(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_cv(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_eoed(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_eoed(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_eoed(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_finished(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_finished(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_finished(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_flight2(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_flight2(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_flight2(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec connected(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
connected(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
connected(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_cert_cr(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_cert_cr(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_cert_cr(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_ee(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_ee(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_ee(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%%--------------------------------------------------------------------
-spec wait_sh(gen_statem:event_type(), term(), #state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
wait_sh(info, Event, State) ->
- gen_info(Event, ?FUNCTION_NAME, State);
+ gen_info_1_3(Event, ?FUNCTION_NAME, State);
wait_sh(Type, Event, State) ->
- gen_handshake(?FUNCTION_NAME, Type, Event, State).
+ gen_handshake_1_3(?FUNCTION_NAME, Type, Event, State).
%--------------------------------------------------------------------
%% gen_statem callbacks
@@ -850,7 +848,6 @@ initial_state(Role, Sender, Host, Port, Socket, {SSLOptions, SocketOptions, Trac
#ssl_options{beast_mitigation = BeastMitigation,
erl_dist = IsErlDist} = SSLOptions,
ConnectionStates = tls_record:init_connection_states(Role, BeastMitigation),
-
ErlDistData = erl_dist_data(IsErlDist),
SessionCacheCb = case application:get_env(ssl, session_cb) of
{ok, Cb} when is_atom(Cb) ->
@@ -1036,6 +1033,18 @@ gen_handshake(StateName, Type, Event,
Version, StateName, State)
end.
+gen_handshake_1_3(StateName, Type, Event,
+ #state{negotiated_version = Version} = State) ->
+ try tls_connection_1_3:StateName(Type, Event, State, ?MODULE) of
+ Result ->
+ Result
+ catch
+ _:_ ->
+ ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE,
+ malformed_handshake_data),
+ Version, StateName, State)
+ end.
+
gen_info(Event, connection = StateName, #state{negotiated_version = Version} = State) ->
try handle_info(Event, StateName, State) of
Result ->
@@ -1057,6 +1066,29 @@ gen_info(Event, StateName, #state{negotiated_version = Version} = State) ->
malformed_handshake_data),
Version, StateName, State)
end.
+
+gen_info_1_3(Event, connected = StateName, #state{negotiated_version = Version} = State) ->
+ try handle_info(Event, StateName, State) of
+ Result ->
+ Result
+ catch
+ _:_ ->
+ ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?INTERNAL_ERROR,
+ malformed_data),
+ Version, StateName, State)
+ end;
+
+gen_info_1_3(Event, StateName, #state{negotiated_version = Version} = State) ->
+ try handle_info(Event, StateName, State) of
+ Result ->
+ Result
+ catch
+ _:_ ->
+ ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE,
+ malformed_handshake_data),
+ Version, StateName, State)
+ end.
+
unprocessed_events(Events) ->
%% The first handshake event will be processed immediately
@@ -1101,3 +1133,34 @@ ensure_sender_terminate(_, #state{protocol_specific = #{sender := Sender}}) ->
end
end,
spawn(Kill).
+
+maybe_generate_client_shares(#ssl_options{
+ versions = [Version|_],
+ supported_groups =
+ #supported_groups{
+ supported_groups = Groups}})
+ when Version =:= {3,4} ->
+ ssl_cipher:generate_client_shares(Groups);
+maybe_generate_client_shares(_) ->
+ undefined.
+
+choose_tls_version(#ssl_options{versions = Versions},
+ #client_hello{
+ extensions = #{client_hello_versions :=
+ #client_hello_versions{versions = ClientVersions}
+ }
+ }) ->
+ case ssl_handshake:select_supported_version(ClientVersions, Versions) of
+ {3,4} ->
+ 'tls_v1.3';
+ _Else ->
+ 'tls_v1.2'
+ end;
+choose_tls_version(_, _) ->
+ 'tls_v1.2'.
+
+
+effective_version(undefined, #ssl_options{versions = [Version|_]}) ->
+ Version;
+effective_version(Version, _) ->
+ Version.
diff --git a/lib/ssl/src/tls_connection_1_3.erl b/lib/ssl/src/tls_connection_1_3.erl
index c8732e7847..04bcea1e1b 100644
--- a/lib/ssl/src/tls_connection_1_3.erl
+++ b/lib/ssl/src/tls_connection_1_3.erl
@@ -104,56 +104,97 @@
-include("ssl_alert.hrl").
-include("ssl_connection.hrl").
+-include("tls_handshake.hrl").
+-include("tls_handshake_1_3.hrl").
--export([hello/4]).
--export([gen_handshake/4]).
+%% gen_statem helper functions
+-export([start/4,
+ negotiated/4
+ ]).
-hello(internal, {common_client_hello, Type, ServerHelloExt}, State, Connection) ->
- do_server_hello(Type, ServerHelloExt, State, Connection).
+start(internal,
+ #client_hello{} = Hello,
+ #state{connection_states = _ConnectionStates0,
+ ssl_options = #ssl_options{ciphers = _ServerCiphers,
+ signature_algs = _ServerSignAlgs,
+ signature_algs_cert = _SignatureSchemes, %% TODO: Check??
+ supported_groups = _ServerGroups0,
+ versions = _Versions} = SslOpts,
+ session = #session{own_certificate = Cert}} = State0,
+ _Module) ->
+
+ Env = #{cert => Cert},
+ case tls_handshake_1_3:handle_client_hello(Hello, SslOpts, Env) of
+ #alert{} = Alert ->
+ ssl_connection:handle_own_alert(Alert, {3,4}, start, State0);
+ M ->
+ %% update connection_states with cipher
+ State = update_state(State0, M),
+ {next_state, negotiated, State, [{next_event, internal, M}]}
+
+ end.
+
+%% TODO: move these functions
+update_state(#state{connection_states = ConnectionStates0,
+ session = Session} = State,
+ #{client_random := ClientRandom,
+ cipher := Cipher,
+ key_share := KeyShare,
+ session_id := SessionId}) ->
+ #{security_parameters := SecParamsR0} = PendingRead =
+ maps:get(pending_read, ConnectionStates0),
+ #{security_parameters := SecParamsW0} = PendingWrite =
+ maps:get(pending_write, ConnectionStates0),
+ SecParamsR = ssl_cipher:security_parameters_1_3(SecParamsR0, ClientRandom, Cipher),
+ SecParamsW = ssl_cipher:security_parameters_1_3(SecParamsW0, ClientRandom, Cipher),
+ ConnectionStates =
+ ConnectionStates0#{pending_read => PendingRead#{security_parameters => SecParamsR},
+ pending_write => PendingWrite#{security_parameters => SecParamsW}},
+ State#state{connection_states = ConnectionStates,
+ key_share = KeyShare,
+ session = Session#session{session_id = SessionId}}.
+
+
+negotiated(internal,
+ Map,
+ #state{connection_states = ConnectionStates0,
+ session = #session{session_id = SessionId},
+ ssl_options = #ssl_options{} = SslOpts,
+ key_share = KeyShare,
+ tls_handshake_history = HHistory0,
+ transport_cb = Transport,
+ socket = Socket}, _Module) ->
+
+ %% Create server_hello
+ %% Extensions: supported_versions, key_share, (pre_shared_key)
+ ServerHello = tls_handshake_1_3:server_hello(SessionId, KeyShare,
+ ConnectionStates0, Map),
+
+ %% Update handshake_history (done in encode!)
+ %% Encode handshake
+ {BinMsg, _ConnectionStates, _HHistory} =
+ tls_connection:encode_handshake(ServerHello, {3,4}, ConnectionStates0, HHistory0),
+ %% Send server_hello
+ tls_connection:send(Transport, Socket, BinMsg),
+ Report = #{direction => outbound,
+ protocol => 'tls_record',
+ message => BinMsg},
+ Msg = #{direction => outbound,
+ protocol => 'handshake',
+ message => ServerHello},
+ ssl_logger:debug(SslOpts#ssl_options.log_level, Msg, #{domain => [otp,ssl,handshake]}),
+ ssl_logger:debug(SslOpts#ssl_options.log_level, Report, #{domain => [otp,ssl,tls_record]}),
+ ok.
+
+ %% K_send = handshake ???
+ %% (Send EncryptedExtensions)
+ %% ([Send CertificateRequest])
+ %% [Send Certificate + CertificateVerify]
+ %% Send Finished
+ %% K_send = application ???
-do_server_hello(Type, #{next_protocol_negotiation := _NextProtocols} =
- _ServerHelloExt,
- #state{negotiated_version = _Version,
- session = #session{session_id = _SessId},
- connection_states = _ConnectionStates0,
- ssl_options = #ssl_options{versions = [_HighestVersion|_]}}
- = State0, _Connection) when is_atom(Type) ->
-%% NEGOTIATED
-%% | Send ServerHello
-%% | K_send = handshake
-%% | Send EncryptedExtensions
-%% | [Send CertificateRequest]
-%% Can send | [Send Certificate + CertificateVerify]
-%% app data | Send Finished
-%% after --> | K_send = application
-%% here +--------+--------+
-%% No 0-RTT | | 0-RTT
-%% | |
-%% K_recv = handshake | | K_recv = early data
-%% [Skip decrypt errors] | +------> WAIT_EOED -+
-%% | | Recv | | Recv EndOfEarlyData
-%% | | early data | | K_recv = handshake
-%% | +------------+ |
-%% | |
-%% +> WAIT_FLIGHT2 <--------+
%% Will be called implicitly
%% {Record, State} = Connection:next_record(State2#state{session = Session}),
%% Connection:next_event(wait_flight2, Record, State, Actions),
%% OR
%% Connection:next_event(WAIT_EOED, Record, State, Actions)
- {next_state, wait_flight2, State0, []}.
- %% TODO: Add new states to tls_connection!
- %% State0.
-
-
-gen_handshake(StateName, Type, Event,
- #state{negotiated_version = Version} = State) ->
- try tls_connection_1_3:StateName(Type, Event, State, ?MODULE) of
- Result ->
- Result
- catch
- _:_ ->
- ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE,
- malformed_handshake_data),
- Version, StateName, State)
- end.
diff --git a/lib/ssl/src/tls_handshake.erl b/lib/ssl/src/tls_handshake.erl
index 37f13fcbac..5aca4bf8c8 100644
--- a/lib/ssl/src/tls_handshake.erl
+++ b/lib/ssl/src/tls_handshake.erl
@@ -26,6 +26,7 @@
-module(tls_handshake).
-include("tls_handshake.hrl").
+-include("tls_handshake_1_3.hrl").
-include("tls_record.hrl").
-include("ssl_alert.hrl").
-include("ssl_internal.hrl").
@@ -34,7 +35,7 @@
-include_lib("kernel/include/logger.hrl").
%% Handshake handling
--export([client_hello/8, hello/4]).
+-export([client_hello/9, hello/4]).
%% Handshake encoding
-export([encode_handshake/2]).
@@ -49,7 +50,8 @@
%%====================================================================
%%--------------------------------------------------------------------
-spec client_hello(host(), inet:port_number(), ssl_record:connection_states(),
- #ssl_options{}, integer(), atom(), boolean(), der_cert()) ->
+ #ssl_options{}, integer(), atom(), boolean(), der_cert(),
+ #key_share_client_hello{} | undefined) ->
#client_hello{}.
%%
%% Description: Creates a client hello message.
@@ -59,7 +61,7 @@ client_hello(Host, Port, ConnectionStates,
ciphers = UserSuites,
fallback = Fallback
} = SslOpts,
- Cache, CacheCb, Renegotiation, OwnCert) ->
+ Cache, CacheCb, Renegotiation, OwnCert, KeyShare) ->
Version = tls_record:highest_protocol_version(Versions),
%% In TLS 1.3, the client indicates its version preferences in the
@@ -79,7 +81,8 @@ client_hello(Host, Port, ConnectionStates,
Extensions = ssl_handshake:client_hello_extensions(Version,
AvailableCipherSuites,
SslOpts, ConnectionStates,
- Renegotiation),
+ Renegotiation,
+ KeyShare),
CipherSuites = ssl_handshake:cipher_suites(AvailableCipherSuites, Renegotiation, Fallback),
Id = ssl_session:client_id({Host, Port, SslOpts}, Cache, CacheCb, OwnCert),
#client_hello{session_id = Id,
@@ -260,8 +263,6 @@ get_tls_handshake(Version, Data, Buffer, Options) ->
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
-handle_client_hello(Version = {3,4}, ClientHello, SslOpts, Info, Renegotiation) ->
- tls_handshake_1_3:handle_client_hello(Version, ClientHello, SslOpts, Info, Renegotiation);
handle_client_hello(Version,
#client_hello{session_id = SugesstedId,
cipher_suites = CipherSuites,
@@ -409,7 +410,7 @@ decode_handshake(Version, ?CLIENT_HELLO,
?BYTE(Cm_length), Comp_methods:Cm_length/binary,
Extensions/binary>>) ->
Exts = ssl_handshake:decode_vector(Extensions),
- DecodedExtensions = ssl_handshake:decode_hello_extensions(Exts, Version, client),
+ DecodedExtensions = ssl_handshake:decode_hello_extensions(Exts, Version, client_hello),
#client_hello{
client_version = {Major,Minor},
random = Random,
diff --git a/lib/ssl/src/tls_handshake_1_3.erl b/lib/ssl/src/tls_handshake_1_3.erl
index 104017b67c..f381e038cf 100644
--- a/lib/ssl/src/tls_handshake_1_3.erl
+++ b/lib/ssl/src/tls_handshake_1_3.erl
@@ -28,13 +28,45 @@
-include("tls_handshake_1_3.hrl").
-include("ssl_alert.hrl").
-include("ssl_internal.hrl").
+-include("ssl_record.hrl").
-include_lib("public_key/include/public_key.hrl").
%% Encode
-export([encode_handshake/1, decode_handshake/2]).
%% Handshake
--export([handle_client_hello/5]).
+-export([handle_client_hello/3]).
+
+%% Create handshake messages
+-export([server_hello/4]).
+
+%%====================================================================
+%% Create handshake messages
+%%====================================================================
+
+server_hello(SessionId, KeyShare, ConnectionStates, _Map) ->
+ #{security_parameters := SecParams} =
+ ssl_record:pending_connection_state(ConnectionStates, read),
+ Extensions = server_hello_extensions(KeyShare),
+ #server_hello{server_version = {3,3}, %% legacy_version
+ cipher_suite = SecParams#security_parameters.cipher_suite,
+ compression_method =
+ SecParams#security_parameters.compression_algorithm,
+ random = SecParams#security_parameters.server_random,
+ session_id = SessionId,
+ extensions = Extensions
+ }.
+
+server_hello_extensions(KeyShare) ->
+ SupportedVersions = #server_hello_selected_version{selected_version = {3,4}},
+ Extensions = #{server_hello_selected_version => SupportedVersions},
+ ssl_handshake:add_server_share(Extensions, KeyShare).
+
+
+
+%%====================================================================
+%% Encode handshake
+%%====================================================================
encode_handshake(#certificate_request_1_3{
certificate_request_context = Context,
@@ -68,14 +100,19 @@ encode_handshake(#key_update{request_update = Update}) ->
encode_handshake(HandshakeMsg) ->
ssl_handshake:encode_handshake(HandshakeMsg, {3,4}).
+
+%%====================================================================
+%% Decode handshake
+%%====================================================================
+
decode_handshake(?CERTIFICATE_REQUEST, <<?BYTE(0), ?UINT16(Size), EncExts:Size/binary>>) ->
- Exts = decode_extensions(EncExts),
+ Exts = decode_extensions(EncExts, certificate_request),
#certificate_request_1_3{
certificate_request_context = <<>>,
extensions = Exts};
decode_handshake(?CERTIFICATE_REQUEST, <<?BYTE(CSize), Context:CSize/binary,
?UINT16(Size), EncExts:Size/binary>>) ->
- Exts = decode_extensions(EncExts),
+ Exts = decode_extensions(EncExts, certificate_request),
#certificate_request_1_3{
certificate_request_context = Context,
extensions = Exts};
@@ -94,12 +131,12 @@ decode_handshake(?CERTIFICATE, <<?BYTE(CSize), Context:CSize/binary,
};
decode_handshake(?ENCRYPTED_EXTENSIONS, <<?UINT16(Size), EncExts:Size/binary>>) ->
#encrypted_extensions{
- extensions = decode_extensions(EncExts)
+ extensions = decode_extensions(EncExts, encrypted_extensions)
};
decode_handshake(?NEW_SESSION_TICKET, <<?UINT32(LifeTime), ?UINT32(Age),
?BYTE(Nonce), ?UINT16(TicketSize), Ticket:TicketSize/binary,
BinExts/binary>>) ->
- Exts = decode_extensions(BinExts),
+ Exts = decode_extensions(BinExts, encrypted_extensions),
#new_session_ticket{ticket_lifetime = LifeTime,
ticket_age_add = Age,
ticket_nonce = Nonce,
@@ -143,58 +180,271 @@ decode_cert_entries(<<>>, Acc) ->
lists:reverse(Acc);
decode_cert_entries(<<?UINT24(DSize), Data:DSize/binary, ?UINT16(Esize), BinExts:Esize/binary,
Rest/binary>>, Acc) ->
- Exts = decode_extensions(BinExts),
+ Exts = decode_extensions(BinExts, certificate_request),
decode_cert_entries(Rest, [#certificate_entry{data = Data,
extensions = Exts} | Acc]).
encode_extensions(Exts)->
ssl_handshake:encode_extensions(extensions_list(Exts)).
-decode_extensions(Exts) ->
- ssl_handshake:decode_extensions(Exts, {3,4}).
+decode_extensions(Exts, MessageType) ->
+ ssl_handshake:decode_extensions(Exts, {3,4}, MessageType).
extensions_list(HelloExtensions) ->
[Ext || {_, Ext} <- maps:to_list(HelloExtensions)].
-handle_client_hello(Version,
- #client_hello{session_id = SugesstedId,
- cipher_suites = CipherSuites,
- compression_methods = Compressions,
+%%====================================================================
+%% Handle handshake messages
+%%====================================================================
+
+handle_client_hello(#client_hello{cipher_suites = ClientCiphers,
random = Random,
- extensions = HelloExt},
- #ssl_options{versions = Versions,
- signature_algs = SupportedHashSigns,
- eccs = SupportedECCs,
- honor_ecc_order = ECCOrder} = SslOpts,
- {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert, _},
- Renegotiation) ->
- case tls_record:is_acceptable_version(Version, Versions) of
- true ->
- %% Get supported_groups
- %% SupportedGroups = maps:get(elliptic_curves, HelloExt, undefined),
- %% Get KeyShareClientHello
-
- %% Validate supported_groups + KeyShareClientHello
- %% IF valid THEN
- %% IF supported_groups IS empty send HelloRetryRequest
- %% ELSE continue
- %% ELSE
- %% send Alert
- %% ClientHashSigns = maps:get(signature_algs, HelloExt, undefined),
- %% ClientSignatureSchemes = maps:get(signature_algs_cert, HelloExt, undefined),
-
- %% Implement session handling.
-
- %% Select curve
-
- %% Sessions cannot be resumed by ClientHello
-
- %% Select cipher_suite
- %% Select hash_sign
-
- %% Handle extensions
- ok;
- false ->
- ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION)
+ session_id = SessionId,
+ extensions = Extensions} = _Hello,
+ #ssl_options{ciphers = ServerCiphers,
+ signature_algs = ServerSignAlgs,
+ signature_algs_cert = _SignatureSchemes, %% TODO: Check??
+ supported_groups = ServerGroups0} = _SslOpts,
+ Env) ->
+
+ Cert = maps:get(cert, Env, undefined),
+
+ ClientGroups0 = maps:get(elliptic_curves, Extensions, undefined),
+ ClientGroups = get_supported_groups(ClientGroups0),
+ ServerGroups = get_supported_groups(ServerGroups0),
+
+ ClientShares0 = maps:get(key_share, Extensions, undefined),
+ ClientShares = get_key_shares(ClientShares0),
+
+ ClientSignAlgs = get_signature_scheme_list(
+ maps:get(signature_algs, Extensions, undefined)),
+ ClientSignAlgsCert = get_signature_scheme_list(
+ maps:get(signature_algs_cert, Extensions, undefined)),
+
+ %% TODO: use library function if it exists
+ %% Init the maybe "monad"
+ {Ref,Maybe} = maybe(),
+
+ try
+ %% If the server does not select a PSK, then the server independently selects a
+ %% cipher suite, an (EC)DHE group and key share for key establishment,
+ %% and a signature algorithm/certificate pair to authenticate itself to
+ %% the client.
+ Cipher = Maybe(select_cipher_suite(ClientCiphers, ServerCiphers)),
+ Group = Maybe(select_server_group(ServerGroups, ClientGroups)),
+ Maybe(validate_key_share(ClientGroups, ClientShares)),
+ _ClientPubKey = Maybe(get_client_public_key(Group, ClientShares)),
+
+ %% Handle certificate
+ {PublicKeyAlgo, SignAlgo} = get_certificate_params(Cert),
+
+ %% Check if client supports signature algorithm of server certificate
+ Maybe(check_cert_sign_algo(SignAlgo, ClientSignAlgs, ClientSignAlgsCert)),
+
+ %% Check if server supports
+ SelectedSignAlg = Maybe(select_sign_algo(PublicKeyAlgo, ClientSignAlgs, ServerSignAlgs)),
+
+ %% Generate server_share
+ KeyShare = ssl_cipher:generate_server_share(Group),
+
+ _Ret = #{cipher => Cipher,
+ group => Group,
+ sign_alg => SelectedSignAlg,
+ %% client_share => ClientPubKey,
+ key_share => KeyShare,
+ client_random => Random,
+ session_id => SessionId}
+
+ %% TODO:
+ %% - session handling
+ %% - handle extensions: ALPN
+ %% (do not handle: NPN, srp, renegotiation_info, ec_point_formats)
+
+ catch
+ {Ref, {insufficient_security, no_suitable_groups}} ->
+ ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_groups);
+ {Ref, illegal_parameter} ->
+ ?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER);
+ {Ref, {client_hello_retry_request, _Group0}} ->
+ %% TODO
+ exit({client_hello_retry_request, not_implemented});
+ {Ref, no_suitable_cipher} ->
+ ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_cipher);
+ {Ref, {insufficient_security, no_suitable_signature_algorithm}} ->
+ ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_signature_algorithm);
+ {Ref, {insufficient_security, no_suitable_public_key}} ->
+ ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_public_key)
+ end.
+
+
+%% If there is no overlap between the received
+%% "supported_groups" and the groups supported by the server, then the
+%% server MUST abort the handshake with a "handshake_failure" or an
+%% "insufficient_security" alert.
+select_server_group(_, []) ->
+ {error, {insufficient_security, no_suitable_groups}};
+select_server_group(ServerGroups, [C|ClientGroups]) ->
+ case lists:member(C, ServerGroups) of
+ true ->
+ {ok, C};
+ false ->
+ select_server_group(ServerGroups, ClientGroups)
end.
+
+%% RFC 8446 - 4.2.8. Key Share
+%% This vector MAY be empty if the client is requesting a
+%% HelloRetryRequest. Each KeyShareEntry value MUST correspond to a
+%% group offered in the "supported_groups" extension and MUST appear in
+%% the same order. However, the values MAY be a non-contiguous subset
+%% of the "supported_groups" extension and MAY omit the most preferred
+%% groups.
+%%
+%% Clients can offer as many KeyShareEntry values as the number of
+%% supported groups it is offering, each representing a single set of
+%% key exchange parameters.
+%%
+%% Clients MUST NOT offer multiple KeyShareEntry values
+%% for the same group. Clients MUST NOT offer any KeyShareEntry values
+%% for groups not listed in the client's "supported_groups" extension.
+%% Servers MAY check for violations of these rules and abort the
+%% handshake with an "illegal_parameter" alert if one is violated.
+validate_key_share(_ ,[]) ->
+ ok;
+validate_key_share([], _) ->
+ {error, illegal_parameter};
+validate_key_share([G|ClientGroups], [{_, G, _}|ClientShares]) ->
+ validate_key_share(ClientGroups, ClientShares);
+validate_key_share([_|ClientGroups], [_|_] = ClientShares) ->
+ validate_key_share(ClientGroups, ClientShares).
+
+
+get_client_public_key(Group, ClientShares) ->
+ case lists:keysearch(Group, 2, ClientShares) of
+ {value, {_, _, ClientPublicKey}} ->
+ {ok, ClientPublicKey};
+ false ->
+ %% ClientHelloRetryRequest
+ {error, {client_hello_retry_request, Group}}
+ end.
+
+select_cipher_suite([], _) ->
+ {error, no_suitable_cipher};
+select_cipher_suite([Cipher|ClientCiphers], ServerCiphers) ->
+ case lists:member(Cipher, ServerCiphers) of
+ true ->
+ {ok, Cipher};
+ false ->
+ select_cipher_suite(ClientCiphers, ServerCiphers)
+ end.
+
+%% RFC 8446 (TLS 1.3)
+%% TLS 1.3 provides two extensions for indicating which signature
+%% algorithms may be used in digital signatures. The
+%% "signature_algorithms_cert" extension applies to signatures in
+%% certificates and the "signature_algorithms" extension, which
+%% originally appeared in TLS 1.2, applies to signatures in
+%% CertificateVerify messages.
+%%
+%% If no "signature_algorithms_cert" extension is
+%% present, then the "signature_algorithms" extension also applies to
+%% signatures appearing in certificates.
+check_cert_sign_algo(SignAlgo, ClientSignAlgs, undefined) ->
+ maybe_lists_member(SignAlgo, ClientSignAlgs,
+ {insufficient_security, no_suitable_signature_algorithm});
+check_cert_sign_algo(SignAlgo, _, ClientSignAlgsCert) ->
+ maybe_lists_member(SignAlgo, ClientSignAlgsCert,
+ {insufficient_security, no_suitable_signature_algorithm}).
+
+
+%% DSA keys are not supported by TLS 1.3
+select_sign_algo(dsa, _ClientSignAlgs, _ServerSignAlgs) ->
+ {error, {insufficient_security, no_suitable_public_key}};
+%% TODO: Implement check for ellipctic curves!
+select_sign_algo(PublicKeyAlgo, [C|ClientSignAlgs], ServerSignAlgs) ->
+ {_, S, _} = ssl_cipher:scheme_to_components(C),
+ case PublicKeyAlgo =:= rsa andalso
+ ((S =:= rsa_pkcs1) orelse (S =:= rsa_pss_rsae) orelse (S =:= rsa_pss_pss)) andalso
+ lists:member(C, ServerSignAlgs) of
+ true ->
+ {ok, C};
+ false ->
+ select_sign_algo(PublicKeyAlgo, ClientSignAlgs, ServerSignAlgs)
+ end.
+
+
+maybe_lists_member(Elem, List, Error) ->
+ case lists:member(Elem, List) of
+ true ->
+ ok;
+ false ->
+ {error, Error}
+ end.
+
+%% TODO: test with ecdsa, rsa_pss_rsae, rsa_pss_pss
+get_certificate_params(Cert) ->
+ {SignAlgo0, _Param, PublicKeyAlgo0} = ssl_handshake:get_cert_params(Cert),
+ SignAlgo = public_key:pkix_sign_types(SignAlgo0),
+ PublicKeyAlgo = public_key_algo(PublicKeyAlgo0),
+ Scheme = sign_algo_to_scheme(SignAlgo),
+ {PublicKeyAlgo, Scheme}.
+
+sign_algo_to_scheme({Hash0, Sign0}) ->
+ SupportedSchemes = tls_v1:default_signature_schemes({3,4}),
+ Hash = case Hash0 of
+ sha ->
+ sha1;
+ H ->
+ H
+ end,
+ Sign = case Sign0 of
+ rsa ->
+ rsa_pkcs1;
+ S ->
+ S
+ end,
+ sign_algo_to_scheme(Hash, Sign, SupportedSchemes).
+%%
+sign_algo_to_scheme(_, _, []) ->
+ not_found;
+sign_algo_to_scheme(H, S, [Scheme|T]) ->
+ {Hash, Sign, _Curve} = ssl_cipher:scheme_to_components(Scheme),
+ case H =:= Hash andalso S =:= Sign of
+ true ->
+ Scheme;
+ false ->
+ sign_algo_to_scheme(H, S, T)
+ end.
+
+
+%% Note: copied from ssl_handshake
+public_key_algo(?rsaEncryption) ->
+ rsa;
+public_key_algo(?'id-ecPublicKey') ->
+ ecdsa;
+public_key_algo(?'id-dsa') ->
+ dsa.
+
+get_signature_scheme_list(undefined) ->
+ undefined;
+get_signature_scheme_list(#signature_algorithms_cert{
+ signature_scheme_list = ClientSignatureSchemes}) ->
+ ClientSignatureSchemes;
+get_signature_scheme_list(#signature_algorithms{
+ signature_scheme_list = ClientSignatureSchemes}) ->
+ ClientSignatureSchemes.
+
+get_supported_groups(#supported_groups{supported_groups = Groups}) ->
+ Groups.
+
+get_key_shares(#key_share_client_hello{client_shares = ClientShares}) ->
+ ClientShares.
+
+maybe() ->
+ Ref = erlang:make_ref(),
+ Ok = fun(ok) -> ok;
+ ({ok,R}) -> R;
+ ({error,Reason}) ->
+ throw({Ref,Reason})
+ end,
+ {Ref,Ok}.
diff --git a/lib/ssl/src/tls_handshake_1_3.hrl b/lib/ssl/src/tls_handshake_1_3.hrl
index 9ee0e0f845..6ef5364399 100644
--- a/lib/ssl/src/tls_handshake_1_3.hrl
+++ b/lib/ssl/src/tls_handshake_1_3.hrl
@@ -59,7 +59,7 @@
key_exchange %key_exchange<1..2^16-1>;
}).
-record(key_share_client_hello, {
- entries %% KeyShareEntry client_shares<0..2^16-1>;
+ client_shares %% KeyShareEntry client_shares<0..2^16-1>;
}).
-record(key_share_hello_retry_request, {
selected_group %% NamedGroup
diff --git a/lib/ssl/src/tls_record.erl b/lib/ssl/src/tls_record.erl
index 7debac7d37..50fad2e680 100644
--- a/lib/ssl/src/tls_record.erl
+++ b/lib/ssl/src/tls_record.erl
@@ -47,7 +47,7 @@
-export([protocol_version/1, lowest_protocol_version/1, lowest_protocol_version/2,
highest_protocol_version/1, highest_protocol_version/2,
is_higher/2, supported_protocol_versions/0,
- is_acceptable_version/1, is_acceptable_version/2, hello_version/2]).
+ is_acceptable_version/1, is_acceptable_version/2, hello_version/1]).
-export_type([tls_version/0, tls_atom_version/0]).
@@ -386,10 +386,10 @@ is_acceptable_version({N,_} = Version, Versions)
is_acceptable_version(_,_) ->
false.
--spec hello_version(tls_version(), [tls_version()]) -> tls_version().
-hello_version(Version, _) when Version >= {3, 3} ->
- Version;
-hello_version(_, Versions) ->
+-spec hello_version([tls_version()]) -> tls_version().
+hello_version([Highest|_]) when Highest >= {3,3} ->
+ Highest;
+hello_version(Versions) ->
lowest_protocol_version(Versions).
%%--------------------------------------------------------------------
diff --git a/lib/ssl/src/tls_record_1_3.erl b/lib/ssl/src/tls_record_1_3.erl
index ff198a09bf..d424336187 100644
--- a/lib/ssl/src/tls_record_1_3.erl
+++ b/lib/ssl/src/tls_record_1_3.erl
@@ -111,21 +111,32 @@ decode_cipher_text(#ssl_tls{type = ?OPAQUE_TYPE,
cipher_type = ?AEAD,
bulk_cipher_algorithm =
BulkCipherAlgo}
- } = ReadState0} = ConnnectionStates0) ->
+ } = ReadState0} = ConnectionStates0) ->
AAD = start_additional_data(),
CipherS1 = ssl_cipher:nonce_seed(<<?UINT64(Seq)>>, CipherS0),
case decipher_aead(BulkCipherAlgo, CipherS1, AAD, CipherFragment) of
{PlainFragment, CipherS1} ->
- ConnnectionStates =
- ConnnectionStates0#{current_read =>
+ ConnectionStates =
+ ConnectionStates0#{current_read =>
ReadState0#{cipher_state => CipherS1,
sequence_number => Seq + 1}},
- decode_inner_plaintext(PlainFragment, ConnnectionStates);
+ decode_inner_plaintext(PlainFragment, ConnectionStates);
#alert{} = Alert ->
Alert
end;
+decode_cipher_text(#ssl_tls{type = Type,
+ version = ?LEGACY_VERSION,
+ fragment = CipherFragment},
+ #{current_read :=
+ #{security_parameters :=
+ #security_parameters{
+ cipher_suite = ?TLS_NULL_WITH_NULL_NULL}
+ }} = ConnnectionStates0) ->
+ {#ssl_tls{type = Type,
+ version = {3,4}, %% Internally use real version
+ fragment = CipherFragment}, ConnnectionStates0};
decode_cipher_text(#ssl_tls{type = Type}, _) ->
- %% Version mismatch is already asserted
+ %% Version mismatch is already asserted
?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, {record_typ_mismatch, Type}).
%%--------------------------------------------------------------------
@@ -169,7 +180,23 @@ encode_plain_text(#inner_plaintext{
AAD = start_additional_data(),
CipherS1 = ssl_cipher:nonce_seed(<<?UINT64(Seq)>>, CipherS0),
{Encoded, WriteState} = cipher_aead(PlainText, WriteState0#{cipher_state => CipherS1}, AAD),
- {#tls_cipher_text{encoded_record = Encoded}, WriteState};
+ {#tls_cipher_text{opaque_type = Type,
+ legacy_version = {3,3},
+ encoded_record = Encoded}, WriteState};
+encode_plain_text(#inner_plaintext{
+ content = Data,
+ type = Type
+ }, #{security_parameters :=
+ #security_parameters{
+ cipher_suite = ?TLS_NULL_WITH_NULL_NULL}
+ } = WriteState0) ->
+ %% RFC8446 - 5.1. Record Layer
+ %% When record protection has not yet been engaged, TLSPlaintext
+ %% structures are written directly onto the wire.
+ {#tls_cipher_text{opaque_type = Type,
+ legacy_version = {3,3},
+ encoded_record = Data}, WriteState0};
+
encode_plain_text(_, CS) ->
exit({cs, CS}).
diff --git a/lib/ssl/src/tls_v1.erl b/lib/ssl/src/tls_v1.erl
index 68ba598612..83dd7585dd 100644
--- a/lib/ssl/src/tls_v1.erl
+++ b/lib/ssl/src/tls_v1.erl
@@ -34,7 +34,7 @@
ecc_curves/1, ecc_curves/2, oid_to_enum/1, enum_to_oid/1,
default_signature_algs/1, signature_algs/2,
default_signature_schemes/1, signature_schemes/2,
- groups/1, groups/2, group_to_enum/1, enum_to_group/1]).
+ groups/1, groups/2, group_to_enum/1, enum_to_group/1, default_groups/1]).
-export([derive_secret/4, hkdf_expand_label/5, hkdf_extract/3, hkdf_expand/4]).
@@ -346,8 +346,8 @@ signature_algs({3, 3}, HashSigns) ->
end, [], HashSigns),
lists:reverse(Supported).
-default_signature_algs({3, 4}) ->
- default_signature_algs({3, 3});
+default_signature_algs({3, 4} = Version) ->
+ default_signature_schemes(Version);
default_signature_algs({3, 3} = Version) ->
Default = [%% SHA2
{sha512, ecdsa},
@@ -551,7 +551,7 @@ ecc_curves(_Minor, TLSCurves) ->
end
end, [], TLSCurves).
--spec groups(4 | all) -> [group()].
+-spec groups(4 | all | default) -> [group()].
groups(all) ->
[secp256r1,
secp384r1,
@@ -561,6 +561,11 @@ groups(all) ->
ffdhe4096,
ffdhe6144,
ffdhe8192];
+groups(default) ->
+ [secp256r1,
+ secp384r1,
+ secp521r1,
+ ffdhe2048];
groups(Minor) ->
TLSGroups = groups(all),
groups(Minor, TLSGroups).
@@ -571,6 +576,10 @@ groups(_Minor, TLSGroups) ->
CryptoGroups = crypto:ec_curves() ++ [ffdhe2048,ffdhe3072,ffdhe4096,ffdhe6144,ffdhe8192],
lists:filter(fun(Group) -> proplists:get_bool(Group, CryptoGroups) end, TLSGroups).
+default_groups(Minor) ->
+ TLSGroups = groups(default),
+ groups(Minor, TLSGroups).
+
group_to_enum(secp256r1) -> 23;
group_to_enum(secp384r1) -> 24;
group_to_enum(secp521r1) -> 25;
diff --git a/lib/ssl/test/property_test/ssl_eqc_handshake.erl b/lib/ssl/test/property_test/ssl_eqc_handshake.erl
index 8b3b81aaf1..6ffb6d311f 100644
--- a/lib/ssl/test/property_test/ssl_eqc_handshake.erl
+++ b/lib/ssl/test/property_test/ssl_eqc_handshake.erl
@@ -298,7 +298,7 @@ extensions(?'TLS_v1.3' = Version, client_hello) ->
%% ClientCertiticateType,
%% ServerCertificateType,
%% Padding,
- %% KeyShare,
+ KeyShare,
%% PreSharedKey,
%% PSKKeyExchangeModes,
%% EarlyData,
@@ -321,7 +321,7 @@ extensions(?'TLS_v1.3' = Version, client_hello) ->
%% oneof([client_cert_type(), undefined]),
%% oneof([server_cert_type(), undefined]),
%% oneof([padding(), undefined]),
- %% oneof([key_share(), undefined]),
+ oneof([key_share(client_hello), undefined]),
%% oneof([pre_shared_key(), undefined]),
%% oneof([psk_key_exchange_modes(), undefined]),
%% oneof([early_data(), undefined]),
@@ -349,7 +349,7 @@ extensions(?'TLS_v1.3' = Version, client_hello) ->
%% client_cert_type => ClientCertificateType,
%% server_cert_type => ServerCertificateType,
%% padding => Padding,
- %% key_share => KeyShare,
+ key_share => KeyShare,
%% pre_shared_key => PreSharedKey,
%% psk_key_exhange_modes => PSKKeyExchangeModes,
%% early_data => EarlyData,
@@ -396,12 +396,12 @@ extensions(Version, client_hello) ->
}));
extensions(?'TLS_v1.3' = Version, server_hello) ->
?LET({
- %% KeyShare,
+ KeyShare,
%% PreSharedKeys,
SupportedVersions
},
{
- %% oneof([key_share(), undefined]),
+ oneof([key_share(server_hello), undefined]),
%% oneof([pre_shared_keys(), undefined]),
oneof([server_hello_selected_version(), undefined])
},
@@ -411,7 +411,7 @@ extensions(?'TLS_v1.3' = Version, server_hello) ->
true
end,
#{
- %% key_share => KeyShare,
+ key_share => KeyShare,
%% pre_shared_keys => PreSharedKeys,
server_hello_selected_version => SupportedVersions
}));
@@ -705,3 +705,57 @@ gen_string(0, Acc) ->
Acc;
gen_string(N, Acc) ->
?LET(Char, gen_char(), gen_string(N-1, [Char | Acc])).
+
+key_share(client_hello) ->
+ ?LET(ClientShares, key_share_entry_list(),
+ #key_share_client_hello{
+ client_shares = ClientShares});
+key_share(server_hello) ->
+ ?LET([ServerShare], key_share_entry_list(1),
+ #key_share_server_hello{
+ server_share = ServerShare}).
+
+key_share_entry_list() ->
+ Max = length(ssl:groups()),
+ ?LET(Size, choose(1,Max), key_share_entry_list(Size)).
+%%
+key_share_entry_list(N) ->
+ key_share_entry_list(N, ssl:groups(), []).
+%%
+key_share_entry_list(0, _Pool, Acc) ->
+ Acc;
+key_share_entry_list(N, Pool, Acc) ->
+ R = rand:uniform(length(Pool)),
+ G = lists:nth(R, Pool),
+ P = generate_public_key(G),
+ KeyShareEntry =
+ #key_share_entry{
+ group = G,
+ key_exchange = P},
+ key_share_entry_list(N - 1, Pool -- [G], [KeyShareEntry|Acc]).
+
+generate_public_key(Group)
+ when Group =:= secp256r1 orelse
+ Group =:= secp384r1 orelse
+ Group =:= secp521r1 ->
+ #'ECPrivateKey'{publicKey = PublicKey} =
+ public_key:generate_key({namedCurve, secp256r1}),
+ PublicKey;
+generate_public_key(Group) ->
+ {PublicKey, _} =
+ public_key:generate_key(ssl_dh_groups:dh_params(Group)),
+ PublicKey.
+
+groups() ->
+ Max = length(ssl:groups()),
+ ?LET(Size, choose(1,Max), group_list(Size)).
+
+group_list(N) ->
+ group_list(N, ssl:groups(), []).
+%%
+group_list(0, _Pool, Acc) ->
+ Acc;
+group_list(N, Pool, Acc) ->
+ R = rand:uniform(length(Pool)),
+ G = lists:nth(R, Pool),
+ group_list(N - 1, Pool -- [G], [G|Acc]).
diff --git a/lib/ssl/test/ssl_handshake_SUITE.erl b/lib/ssl/test/ssl_handshake_SUITE.erl
index c35ee6cb57..e39313e5cd 100644
--- a/lib/ssl/test/ssl_handshake_SUITE.erl
+++ b/lib/ssl/test/ssl_handshake_SUITE.erl
@@ -112,7 +112,7 @@ decode_hello_handshake(_Config) ->
decode_single_hello_extension_correctly(_Config) ->
Renegotiation = <<?UINT16(?RENEGOTIATION_EXT), ?UINT16(1), 0>>,
- Extensions = ssl_handshake:decode_extensions(Renegotiation, {3,3}),
+ Extensions = ssl_handshake:decode_extensions(Renegotiation, {3,3}, undefined),
#{renegotiation_info := #renegotiation_info{renegotiated_connection = <<0>>}} = Extensions.
decode_supported_elliptic_curves_hello_extension_correctly(_Config) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 06:23:45 +0000