diff options
Diffstat (limited to 'lib/ssl/src/ssl_connection.erl')
-rw-r--r-- | lib/ssl/src/ssl_connection.erl | 210 |
1 files changed, 153 insertions, 57 deletions
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index 1843377582..de9260fd8c 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -35,7 +35,6 @@ -include("ssl_cipher.hrl"). -include("ssl_internal.hrl"). -include("ssl_srp.hrl"). --include("ssl_srp_primes.hrl"). -include_lib("public_key/include/public_key.hrl"). %% Internal application API @@ -98,7 +97,8 @@ terminated = false, % allow_renegotiate = true, expecting_next_protocol_negotiation = false :: boolean(), - next_protocol = undefined :: undefined | binary() + next_protocol = undefined :: undefined | binary(), + client_ecc % {Curves, PointFmt} }). -define(DEFAULT_DIFFIE_HELLMAN_PARAMS, @@ -416,11 +416,14 @@ hello(Hello = #client_hello{client_version = ClientVersion}, ssl_options = SslOpts}) -> case ssl_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert}, Renegotiation) of - {Version, {Type, Session}, ConnectionStates, ProtocolsToAdvertise} -> - do_server_hello(Type, ProtocolsToAdvertise, State#state{connection_states = - ConnectionStates, - negotiated_version = Version, - session = Session}); + {Version, {Type, Session}, ConnectionStates, ProtocolsToAdvertise, + EcPointFormats, EllipticCurves} -> + do_server_hello(Type, ProtocolsToAdvertise, + EcPointFormats, EllipticCurves, + State#state{connection_states = ConnectionStates, + negotiated_version = Version, + session = Session, + client_ecc = {EllipticCurves, EcPointFormats}}); #alert{} = Alert -> handle_own_alert(Alert, ClientVersion, hello, State) end; @@ -533,7 +536,9 @@ certify(#certificate{} = Cert, certify(#server_key_exchange{} = KeyExchangeMsg, #state{role = client, negotiated_version = Version, key_algorithm = Alg} = State0) - when Alg == dhe_dss; Alg == dhe_rsa; Alg == dh_anon; + when Alg == dhe_dss; Alg == dhe_rsa; + Alg == ecdhe_rsa; Alg == ecdhe_ecdsa; + Alg == dh_anon; Alg == ecdh_anon; Alg == psk; Alg == dhe_psk; Alg == rsa_psk; Alg == srp_dss; Alg == srp_rsa; Alg == srp_anon -> case handle_server_key(KeyExchangeMsg, State0) of @@ -669,9 +674,20 @@ certify_client_key_exchange(#encrypted_premaster_secret{premaster_secret= EncPMS certify_client_key_exchange(#client_diffie_hellman_public{dh_public = ClientPublicDhKey}, #state{negotiated_version = Version, diffie_hellman_params = #'DHParameter'{prime = P, - base = G}, + base = G} = Params, diffie_hellman_keys = {_, ServerDhPrivateKey}} = State0) -> - case dh_master_secret(crypto:mpint(P), crypto:mpint(G), ClientPublicDhKey, ServerDhPrivateKey, State0) of + case dh_master_secret(Params, ClientPublicDhKey, ServerDhPrivateKey, State0) of + #state{} = State1 -> + {Record, State} = next_record(State1), + next_state(certify, cipher, Record, State); + #alert{} = Alert -> + handle_own_alert(Alert, Version, certify, State0) + end; + +certify_client_key_exchange(#client_ec_diffie_hellman_public{dh_public = ClientPublicEcDhPoint}, + #state{negotiated_version = Version, + diffie_hellman_keys = ECDHKey} = State0) -> + case ec_dh_master_secret(ECDHKey, #'ECPoint'{point = ClientPublicEcDhPoint}, State0) of #state{} = State1 -> {Record, State} = next_record(State1), next_state(certify, cipher, Record, State); @@ -696,7 +712,7 @@ certify_client_key_exchange(#client_dhe_psk_identity{ diffie_hellman_params = #'DHParameter'{prime = P, base = G}, diffie_hellman_keys = {_, ServerDhPrivateKey}} = State0) -> - case dhe_psk_master_secret(ClientPSKIdentity, crypto:mpint(P), crypto:mpint(G), ClientPublicDhKey, ServerDhPrivateKey, State0) of + case dhe_psk_master_secret(ClientPSKIdentity, P, G, ClientPublicDhKey, ServerDhPrivateKey, State0) of #state{} = State1 -> {Record, State} = next_record(State1), next_state(certify, cipher, Record, State); @@ -1278,6 +1294,7 @@ init_private_key(DbHandle, undefined, KeyFile, Password, _) -> [PemEntry] = [PemEntry || PemEntry = {PKey, _ , _} <- List, PKey =:= 'RSAPrivateKey' orelse PKey =:= 'DSAPrivateKey' orelse + PKey =:= 'ECPrivateKey' orelse PKey =:= 'PrivateKeyInfo' ], private_key(public_key:pem_entry_decode(PemEntry, Password)) @@ -1291,6 +1308,8 @@ init_private_key(_,{rsa, PrivateKey}, _, _,_) -> init_private_key('RSAPrivateKey', PrivateKey); init_private_key(_,{dsa, PrivateKey},_,_,_) -> init_private_key('DSAPrivateKey', PrivateKey); +init_private_key(_,{ec, PrivateKey},_,_,_) -> + init_private_key('ECPrivateKey', PrivateKey); init_private_key(_,{Asn1Type, PrivateKey},_,_,_) -> private_key(init_private_key(Asn1Type, PrivateKey)). @@ -1306,6 +1325,7 @@ private_key(#'PrivateKeyInfo'{privateKeyAlgorithm = #'PrivateKeyInfo_privateKeyAlgorithm'{algorithm = ?'id-dsa'}, privateKey = Key}) -> public_key:der_decode('DSAPrivateKey', iolist_to_binary(Key)); + private_key(Key) -> Key. @@ -1357,7 +1377,15 @@ handle_peer_cert(PeerCert, PublicKeyInfo, State1 = State0#state{session = Session#session{peer_certificate = PeerCert}, public_key_info = PublicKeyInfo}, - {Record, State} = next_record(State1), + State2 = case PublicKeyInfo of + {?'id-ecPublicKey', #'ECPoint'{point = _ECPoint} = PublicKey, PublicKeyParams} -> + ECDHKey = public_key:generate_key(PublicKeyParams), + State3 = State1#state{diffie_hellman_keys = ECDHKey}, + ec_dh_master_secret(ECDHKey, PublicKey, State3); + + _ -> State1 + end, + {Record, State} = next_record(State2), next_state(certify, certify, Record, State). certify_client(#state{client_certificate_requested = true, role = client, @@ -1407,15 +1435,18 @@ verify_client_cert(#state{client_certificate_requested = true, role = client, verify_client_cert(#state{client_certificate_requested = false} = State) -> State. -do_server_hello(Type, NextProtocolsToSend, #state{negotiated_version = Version, - session = #session{session_id = SessId}, - connection_states = ConnectionStates0, - renegotiation = {Renegotiation, _}} +do_server_hello(Type, NextProtocolsToSend, + EcPointFormats, EllipticCurves, + #state{negotiated_version = Version, + session = #session{session_id = SessId}, + connection_states = ConnectionStates0, + renegotiation = {Renegotiation, _}} = State0) when is_atom(Type) -> ServerHello = ssl_handshake:server_hello(SessId, Version, - ConnectionStates0, Renegotiation, NextProtocolsToSend), + ConnectionStates0, Renegotiation, + NextProtocolsToSend, EcPointFormats, EllipticCurves), State = server_hello(ServerHello, State0#state{expecting_next_protocol_negotiation = NextProtocolsToSend =/= undefined}), @@ -1547,7 +1578,7 @@ server_hello_done(#state{transport_cb = Transport, tls_handshake_history = Handshake}. certify_server(#state{key_algorithm = Algo} = State) - when Algo == dh_anon; Algo == psk; Algo == dhe_psk -> + when Algo == dh_anon; Algo == ecdh_anon; Algo == psk; Algo == dhe_psk; Algo == srp_anon -> State; certify_server(#state{transport_cb = Transport, @@ -1574,7 +1605,7 @@ key_exchange(#state{role = server, key_algorithm = rsa} = State) -> State; key_exchange(#state{role = server, key_algorithm = Algo, hashsign_algorithm = HashSignAlgo, - diffie_hellman_params = #'DHParameter'{prime = P, base = G} = Params, + diffie_hellman_params = #'DHParameter'{} = Params, private_key = PrivateKey, connection_states = ConnectionStates0, negotiated_version = Version, @@ -1585,13 +1616,13 @@ key_exchange(#state{role = server, key_algorithm = Algo, when Algo == dhe_dss; Algo == dhe_rsa; Algo == dh_anon -> - Keys = crypto:dh_generate_key([crypto:mpint(P), crypto:mpint(G)]), + DHKeys = public_key:generate_key(Params), ConnectionState = ssl_record:pending_connection_state(ConnectionStates0, read), SecParams = ConnectionState#connection_state.security_parameters, #security_parameters{client_random = ClientRandom, server_random = ServerRandom} = SecParams, - Msg = ssl_handshake:key_exchange(server, Version, {dh, Keys, Params, + Msg = ssl_handshake:key_exchange(server, Version, {dh, DHKeys, Params, HashSignAlgo, ClientRandom, ServerRandom, PrivateKey}), @@ -1599,9 +1630,41 @@ key_exchange(#state{role = server, key_algorithm = Algo, encode_handshake(Msg, Version, ConnectionStates0, Handshake0), Transport:send(Socket, BinMsg), State#state{connection_states = ConnectionStates, - diffie_hellman_keys = Keys, + diffie_hellman_keys = DHKeys, tls_handshake_history = Handshake}; +key_exchange(#state{role = server, private_key = Key, key_algorithm = Algo} = State) + when Algo == ecdh_ecdsa; Algo == ecdh_rsa -> + State#state{diffie_hellman_keys = Key}; +key_exchange(#state{role = server, key_algorithm = Algo, + hashsign_algorithm = HashSignAlgo, + private_key = PrivateKey, + connection_states = ConnectionStates0, + negotiated_version = Version, + tls_handshake_history = Handshake0, + socket = Socket, + transport_cb = Transport + } = State) + when Algo == ecdhe_ecdsa; Algo == ecdhe_rsa; + Algo == ecdh_anon -> + + ECDHKeys = public_key:generate_key(select_curve(State)), + ConnectionState = + ssl_record:pending_connection_state(ConnectionStates0, read), + SecParams = ConnectionState#connection_state.security_parameters, + #security_parameters{client_random = ClientRandom, + server_random = ServerRandom} = SecParams, + Msg = ssl_handshake:key_exchange(server, Version, {ecdh, ECDHKeys, + HashSignAlgo, ClientRandom, + ServerRandom, + PrivateKey}), + {BinMsg, ConnectionStates, Handshake1} = + encode_handshake(Msg, Version, ConnectionStates0, Handshake0), + Transport:send(Socket, BinMsg), + State#state{connection_states = ConnectionStates, + diffie_hellman_keys = ECDHKeys, + tls_handshake_history = Handshake1}; + key_exchange(#state{role = server, key_algorithm = psk, ssl_options = #ssl_options{psk_identity = undefined}} = State) -> State; @@ -1633,7 +1696,7 @@ key_exchange(#state{role = server, key_algorithm = psk, key_exchange(#state{role = server, key_algorithm = dhe_psk, ssl_options = #ssl_options{psk_identity = PskIdentityHint}, hashsign_algorithm = HashSignAlgo, - diffie_hellman_params = #'DHParameter'{prime = P, base = G} = Params, + diffie_hellman_params = #'DHParameter'{} = Params, private_key = PrivateKey, connection_states = ConnectionStates0, negotiated_version = Version, @@ -1641,13 +1704,13 @@ key_exchange(#state{role = server, key_algorithm = dhe_psk, socket = Socket, transport_cb = Transport } = State) -> - Keys = crypto:dh_generate_key([crypto:mpint(P), crypto:mpint(G)]), + DHKeys = public_key:generate_key(Params), ConnectionState = ssl_record:pending_connection_state(ConnectionStates0, read), SecParams = ConnectionState#connection_state.security_parameters, #security_parameters{client_random = ClientRandom, server_random = ServerRandom} = SecParams, - Msg = ssl_handshake:key_exchange(server, Version, {dhe_psk, PskIdentityHint, Keys, Params, + Msg = ssl_handshake:key_exchange(server, Version, {dhe_psk, PskIdentityHint, DHKeys, Params, HashSignAlgo, ClientRandom, ServerRandom, PrivateKey}), @@ -1655,7 +1718,7 @@ key_exchange(#state{role = server, key_algorithm = dhe_psk, encode_handshake(Msg, Version, ConnectionStates0, Handshake0), Transport:send(Socket, BinMsg), State#state{connection_states = ConnectionStates, - diffie_hellman_keys = Keys, + diffie_hellman_keys = DHKeys, tls_handshake_history = Handshake}; key_exchange(#state{role = server, key_algorithm = rsa_psk, @@ -1756,6 +1819,23 @@ key_exchange(#state{role = client, tls_handshake_history = Handshake}; key_exchange(#state{role = client, + connection_states = ConnectionStates0, + key_algorithm = Algorithm, + negotiated_version = Version, + diffie_hellman_keys = Keys, + socket = Socket, transport_cb = Transport, + tls_handshake_history = Handshake0} = State) + when Algorithm == ecdhe_ecdsa; Algorithm == ecdhe_rsa; + Algorithm == ecdh_ecdsa; Algorithm == ecdh_rsa; + Algorithm == ecdh_anon -> + Msg = ssl_handshake:key_exchange(client, Version, {ecdh, Keys}), + {BinMsg, ConnectionStates, Handshake} = + encode_handshake(Msg, Version, ConnectionStates0, Handshake0), + Transport:send(Socket, BinMsg), + State#state{connection_states = ConnectionStates, + tls_handshake_history = Handshake}; + +key_exchange(#state{role = client, ssl_options = SslOpts, connection_states = ConnectionStates0, key_algorithm = psk, @@ -1936,7 +2016,7 @@ handle_server_key(#server_key_exchange{exchange_keys = Keys}, Params = ssl_handshake:decode_server_key(Keys, KeyAlg, Version), HashSign = connection_hashsign(Params#server_key_params.hashsign, State), case HashSign of - {_, anon} -> + {_, SignAlgo} when SignAlgo == anon; SignAlgo == ecdh_anon -> server_master_secret(Params#server_key_params.params, State); _ -> verify_server_key(Params, HashSign, State) @@ -1969,6 +2049,11 @@ server_master_secret(#server_dh_params{dh_p = P, dh_g = G, dh_y = ServerPublicDh State) -> dh_master_secret(P, G, ServerPublicDhKey, undefined, State); +server_master_secret(#server_ecdh_params{curve = ECCurve, public = ECServerPubKey}, + State) -> + ECDHKeys = public_key:generate_key(ECCurve), + ec_dh_master_secret(ECDHKeys, #'ECPoint'{point = ECServerPubKey}, State#state{diffie_hellman_keys = ECDHKeys}); + server_master_secret(#server_psk_params{ hint = IdentityHint}, State) -> @@ -2000,17 +2085,23 @@ master_from_premaster_secret(PremasterSecret, Alert end. +dh_master_secret(#'DHParameter'{} = Params, OtherPublicDhKey, MyPrivateKey, State) -> + PremasterSecret = + public_key:compute_key(OtherPublicDhKey, MyPrivateKey, Params), + master_from_premaster_secret(PremasterSecret, State). + dh_master_secret(Prime, Base, PublicDhKey, undefined, State) -> - PMpint = mpint_binary(Prime), - GMpint = mpint_binary(Base), - Keys = {_, PrivateDhKey} = - crypto:dh_generate_key([PMpint,GMpint]), - dh_master_secret(PMpint, GMpint, PublicDhKey, PrivateDhKey, State#state{diffie_hellman_keys = Keys}); + Keys = {_, PrivateDhKey} = crypto:generate_key(dh, [Prime, Base]), + dh_master_secret(Prime, Base, PublicDhKey, PrivateDhKey, State#state{diffie_hellman_keys = Keys}); + +dh_master_secret(Prime, Base, PublicDhKey, PrivateDhKey, State) -> + PremasterSecret = + crypto:compute_key(dh, PublicDhKey, PrivateDhKey, [Prime, Base]), + master_from_premaster_secret(PremasterSecret, State). -dh_master_secret(PMpint, GMpint, PublicDhKey, PrivateDhKey, State) -> +ec_dh_master_secret(ECDHKeys, ECPoint, State) -> PremasterSecret = - crypto:dh_compute_key(mpint_binary(PublicDhKey), PrivateDhKey, - [PMpint, GMpint]), + public_key:compute_key(ECPoint, ECDHKeys), master_from_premaster_secret(PremasterSecret, State). handle_psk_identity(_PSKIdentity, LookupFun) @@ -2033,20 +2124,18 @@ server_psk_master_secret(ClientPSKIdentity, end. dhe_psk_master_secret(PSKIdentity, Prime, Base, PublicDhKey, undefined, State) -> - PMpint = mpint_binary(Prime), - GMpint = mpint_binary(Base), Keys = {_, PrivateDhKey} = - crypto:dh_generate_key([PMpint,GMpint]), - dhe_psk_master_secret(PSKIdentity, PMpint, GMpint, PublicDhKey, PrivateDhKey, + crypto:generate_key(dh, [Prime, Base]), + dhe_psk_master_secret(PSKIdentity, Prime, Base, PublicDhKey, PrivateDhKey, State#state{diffie_hellman_keys = Keys}); -dhe_psk_master_secret(PSKIdentity, PMpint, GMpint, PublicDhKey, PrivateDhKey, +dhe_psk_master_secret(PSKIdentity, Prime, Base, PublicDhKey, PrivateDhKey, #state{ssl_options = SslOpts} = State) -> case handle_psk_identity(PSKIdentity, SslOpts#ssl_options.user_lookup_fun) of {ok, PSK} when is_binary(PSK) -> DHSecret = - crypto:dh_compute_key(mpint_binary(PublicDhKey), PrivateDhKey, - [PMpint, GMpint]), + crypto:compute_key(dh, PublicDhKey, PrivateDhKey, + [Prime, Base]), DHLen = erlang:byte_size(DHSecret), Len = erlang:byte_size(PSK), PremasterSecret = <<?UINT16(DHLen), DHSecret/binary, ?UINT16(Len), PSK/binary>>, @@ -2075,7 +2164,7 @@ generate_srp_server_keys(_SrpParams, 10) -> generate_srp_server_keys(SrpParams = #srp_user{generator = Generator, prime = Prime, verifier = Verifier}, N) -> - case crypto:srp_generate_key(Verifier, Generator, Prime, '6a') of + case crypto:generate_key(srp, {host, [Verifier, Generator, Prime, '6a']}) of error -> generate_srp_server_keys(SrpParams, N+1); Keys -> @@ -2086,7 +2175,7 @@ generate_srp_client_keys(_Generator, _Prime, 10) -> ?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER); generate_srp_client_keys(Generator, Prime, N) -> - case crypto:srp_generate_key(Generator, Prime, '6a') of + case crypto:generate_key(srp, {user, [Generator, Prime, '6a']}) of error -> generate_srp_client_keys(Generator, Prime, N+1); Keys -> @@ -2098,7 +2187,7 @@ handle_srp_identity(Username, {Fun, UserState}) -> {ok, {SRPParams, Salt, DerivedKey}} when is_atom(SRPParams), is_binary(Salt), is_binary(DerivedKey) -> {Generator, Prime} = ssl_srp_primes:get_srp_params(SRPParams), - Verifier = crypto:mod_exp_prime(Generator, DerivedKey, Prime), + Verifier = crypto:mod_pow(Generator, DerivedKey, Prime), #srp_user{generator = Generator, prime = Prime, salt = Salt, verifier = Verifier}; #alert{} = Alert -> @@ -2107,8 +2196,8 @@ handle_srp_identity(Username, {Fun, UserState}) -> throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) end. -server_srp_master_secret(Verifier, Prime, ClientPub, State = #state{srp_keys = {ServerPub, ServerPriv}}) -> - case crypto:srp_compute_key(Verifier, Prime, ClientPub, ServerPub, ServerPriv, '6a') of +server_srp_master_secret(Verifier, Prime, ClientPub, State = #state{srp_keys = ServerKeys}) -> + case crypto:compute_key(srp, ClientPub, ServerKeys, {host, [Verifier, Prime, '6a']}) of error -> ?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER); PremasterSecret -> @@ -2121,14 +2210,13 @@ client_srp_master_secret(Generator, Prime, Salt, ServerPub, undefined, State) -> Keys = generate_srp_client_keys(Generator, Prime, 0), client_srp_master_secret(Generator, Prime, Salt, ServerPub, Keys, State#state{srp_keys = Keys}); -client_srp_master_secret(Generator, Prime, Salt, ServerPub, {ClientPub, ClientPriv}, - #state{ssl_options = SslOpts} = State) -> +client_srp_master_secret(Generator, Prime, Salt, ServerPub, ClientKeys, + #state{ssl_options = SslOpts} = State) -> case ssl_srp_primes:check_srp_params(Generator, Prime) of ok -> {Username, Password} = SslOpts#ssl_options.srp_identity, - DerivedKey = crypto:sha([Salt, crypto:sha([Username, <<$:>>, Password])]), - - case crypto:srp_compute_key(DerivedKey, Prime, Generator, ClientPub, ClientPriv, ServerPub, '6a') of + DerivedKey = crypto:hash(sha, [Salt, crypto:hash(sha, [Username, <<$:>>, Password])]), + case crypto:compute_key(srp, ServerPub, ClientKeys, {user, [DerivedKey, Prime, Generator, '6a']}) of error -> ?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER); PremasterSecret -> @@ -2798,11 +2886,6 @@ make_premaster_secret({MajVer, MinVer}, rsa) -> make_premaster_secret(_, _) -> undefined. -mpint_binary(Binary) -> - Size = erlang:byte_size(Binary), - <<?UINT32(Size), Binary/binary>>. - - ack_connection(#state{renegotiation = {true, Initiater}} = State) when Initiater == internal; Initiater == peer -> @@ -2938,21 +3021,29 @@ default_hashsign(_Version = {Major, Minor}, KeyExchange) (KeyExchange == rsa orelse KeyExchange == dhe_rsa orelse KeyExchange == dh_rsa orelse + KeyExchange == ecdhe_rsa orelse KeyExchange == srp_rsa) -> {sha, rsa}; default_hashsign(_Version, KeyExchange) when KeyExchange == rsa; KeyExchange == dhe_rsa; KeyExchange == dh_rsa; + KeyExchange == ecdhe_rsa; KeyExchange == srp_rsa -> {md5sha, rsa}; default_hashsign(_Version, KeyExchange) + when KeyExchange == ecdhe_ecdsa; + KeyExchange == ecdh_ecdsa; + KeyExchange == ecdh_rsa -> + {sha, ecdsa}; +default_hashsign(_Version, KeyExchange) when KeyExchange == dhe_dss; KeyExchange == dh_dss; KeyExchange == srp_dss -> {sha, dsa}; default_hashsign(_Version, KeyExchange) when KeyExchange == dh_anon; + KeyExchange == ecdh_anon; KeyExchange == psk; KeyExchange == dhe_psk; KeyExchange == rsa_psk; @@ -2987,3 +3078,8 @@ handle_close_alert(Data, StateName, State0) -> _ -> ok end. + +select_curve(#state{client_ecc = {[Curve|_], _}}) -> + {namedCurve, Curve}; +select_curve(_) -> + {namedCurve, ?secp256k1}. |