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-rw-r--r--lib/ssl/src/ssl_handshake.erl100
1 files changed, 90 insertions, 10 deletions
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index d0bf710e03..83c0092de2 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -28,6 +28,7 @@
-include("ssl_cipher.hrl").
-include("ssl_alert.hrl").
-include("ssl_internal.hrl").
+-include("ssl_srp.hrl").
-include_lib("public_key/include/public_key.hrl").
-export([master_secret/4, client_hello/8, server_hello/5, hello/4,
@@ -65,6 +66,7 @@ client_hello(Host, Port, ConnectionStates,
Pending = ssl_record:pending_connection_state(ConnectionStates, read),
SecParams = Pending#connection_state.security_parameters,
Ciphers = available_suites(UserSuites, Version),
+ SRP = srp_user(SslOpts),
Id = ssl_session:client_id({Host, Port, SslOpts}, Cache, CacheCb, OwnCert),
@@ -76,6 +78,7 @@ client_hello(Host, Port, ConnectionStates,
renegotiation_info =
renegotiation_info(client, ConnectionStates, Renegotiation),
+ srp = SRP,
hash_signs = default_hash_signs(),
next_protocol_negotiation =
encode_client_protocol_negotiation(SslOpts#ssl_options.next_protocol_selector, Renegotiation)
@@ -162,7 +165,8 @@ hello(#server_hello{cipher_suite = CipherSuite, server_version = Version,
hello(#client_hello{client_version = ClientVersion, random = Random,
cipher_suites = CipherSuites,
- renegotiation_info = Info} = Hello,
+ renegotiation_info = Info,
+ srp = SRP} = Hello,
#ssl_options{versions = Versions,
secure_renegotiate = SecureRenegotation} = SslOpts,
{Port, Session0, Cache, CacheCb, ConnectionStates0, Cert}, Renegotiation) ->
@@ -171,13 +175,14 @@ hello(#client_hello{client_version = ClientVersion, random = Random,
case ssl_record:is_acceptable_version(Version, Versions) of
true ->
{Type, #session{cipher_suite = CipherSuite,
- compression_method = Compression} = Session}
+ compression_method = Compression} = Session1}
= select_session(Hello, Port, Session0, Version,
SslOpts, Cache, CacheCb, Cert),
case CipherSuite of
no_suite ->
?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY);
_ ->
+ Session = handle_srp_info(SRP, Session1),
case handle_renegotiation_info(server, Info, ConnectionStates0,
Renegotiation, SecureRenegotation,
CipherSuites) of
@@ -372,8 +377,10 @@ certificate_request(ConnectionStates, CertDbHandle, CertDbRef) ->
{premaster_secret, binary(), public_key_info()} |
{dh, binary()} |
{dh, {binary(), binary()}, #'DHParameter'{}, {HashAlgo::atom(), SignAlgo::atom()},
+ binary(), binary(), private_key()} |
{psk, binary()} |
- {dhe_psk, binary(), binary()},
+ {dhe_psk, binary(), binary()} |
+ {srp, {binary(), binary()}, #srp_user{}, {HashAlgo::atom(), SignAlgo::atom()},
binary(), binary(), private_key()}) ->
#client_key_exchange{} | #server_key_exchange{}.
%%
@@ -411,6 +418,12 @@ key_exchange(client, _Version, {psk_premaster_secret, PskIdentity, Secret, {_, P
identity = PskIdentity,
exchange_keys = EncPremasterSecret}};
+key_exchange(client, _Version, {srp, PublicKey}) ->
+ #client_key_exchange{
+ exchange_keys = #client_srp_public{
+ srp_a = PublicKey}
+ };
+
key_exchange(server, Version, {dh, {<<?UINT32(Len), PublicKey:Len/binary>>, _},
#'DHParameter'{prime = P, base = G},
HashSign, ClientRandom, ServerRandom, PrivateKey}) ->
@@ -437,7 +450,16 @@ key_exchange(server, Version, {dhe_psk, PskIdentityHint, {<<?UINT32(Len), Public
dh_params = #server_dh_params{dh_p = PBin,
dh_g = GBin, dh_y = PublicKey}
},
- enc_server_key_exchange(Version, ServerEDHPSKParams, HashSign,
+ enc_server_key_exchange(Version, ServerEDHPSKParams,
+ HashSign, ClientRandom, ServerRandom, PrivateKey);
+
+key_exchange(server, Version, {srp, {PublicKey, _},
+ #srp_user{generator = Generator, prime = Prime,
+ salt = Salt},
+ HashSign, ClientRandom, ServerRandom, PrivateKey}) ->
+ ServerSRPParams = #server_srp_params{srp_n = Prime, srp_g = Generator,
+ srp_s = Salt, srp_b = PublicKey},
+ enc_server_key_exchange(Version, ServerSRPParams, HashSign,
ClientRandom, ServerRandom, PrivateKey).
enc_server_key_exchange(Version, Params, {HashAlgo, SignAlgo},
@@ -571,7 +593,8 @@ get_tls_handshake(Version, Data, Buffer) ->
| #client_diffie_hellman_public{}
| #client_psk_identity{}
| #client_dhe_psk_identity{}
- | #client_rsa_psk_identity{}.
+ | #client_rsa_psk_identity{}
+ | #client_srp_public{}.
%%
%% Description: Decode client_key data and return appropriate type
%%--------------------------------------------------------------------
@@ -723,6 +746,11 @@ cipher_suites(Suites, false) ->
cipher_suites(Suites, true) ->
Suites.
+srp_user(#ssl_options{srp_identity = {UserName, _}}) ->
+ #srp{username = UserName};
+srp_user(_) ->
+ undefined.
+
renegotiation_info(client, _, false) ->
#renegotiation_info{renegotiated_connection = undefined};
renegotiation_info(server, ConnectionStates, false) ->
@@ -805,6 +833,11 @@ select_next_protocol(Protocols, NextProtocolSelector) ->
Protocol
end.
+handle_srp_info(undefined, Session) ->
+ Session;
+handle_srp_info(#srp{username = Username}, Session) ->
+ Session#session{srp_username = Username}.
+
handle_renegotiation_info(_, #renegotiation_info{renegotiated_connection = ?byte(0)},
ConnectionStates, false, _, _) ->
{ok, ssl_record:set_renegotiation_flag(true, ConnectionStates)};
@@ -987,6 +1020,7 @@ dec_hs(_Version, ?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary,
DecodedExtensions = dec_hello_extensions(Extensions),
RenegotiationInfo = proplists:get_value(renegotiation_info, DecodedExtensions, undefined),
+ SRP = proplists:get_value(srp, DecodedExtensions, undefined),
HashSigns = proplists:get_value(hash_signs, DecodedExtensions, undefined),
NextProtocolNegotiation = proplists:get_value(next_protocol_negotiation, DecodedExtensions, undefined),
@@ -997,6 +1031,7 @@ dec_hs(_Version, ?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary,
cipher_suites = from_2bytes(CipherSuites),
compression_methods = Comp_methods,
renegotiation_info = RenegotiationInfo,
+ srp = SRP,
hash_signs = HashSigns,
next_protocol_negotiation = NextProtocolNegotiation
};
@@ -1088,7 +1123,10 @@ dec_client_key(<<?UINT16(Len), Id:Len/binary, PKEPMS/binary>>,
#client_rsa_psk_identity{identity = Id, exchange_keys = #encrypted_premaster_secret{premaster_secret = PKEPMS}};
dec_client_key(<<?UINT16(Len), Id:Len/binary, ?UINT16(_), PKEPMS/binary>>,
?KEY_EXCHANGE_RSA_PSK, _) ->
- #client_rsa_psk_identity{identity = Id, exchange_keys = #encrypted_premaster_secret{premaster_secret = PKEPMS}}.
+ #client_rsa_psk_identity{identity = Id, exchange_keys = #encrypted_premaster_secret{premaster_secret = PKEPMS}};
+dec_client_key(<<?UINT16(ALen), A:ALen/binary>>,
+ ?KEY_EXCHANGE_SRP, _) ->
+ #client_srp_public{srp_a = A}.
dec_ske_params(Len, Keys, Version) ->
<<Params:Len/bytes, Signature/binary>> = Keys,
@@ -1147,6 +1185,17 @@ dec_server_key(<<?UINT16(Len), IdentityHint:Len/binary,
params_bin = BinMsg,
hashsign = HashSign,
signature = Signature};
+dec_server_key(<<?UINT16(NLen), N:NLen/binary,
+ ?UINT16(GLen), G:GLen/binary,
+ ?BYTE(SLen), S:SLen/binary,
+ ?UINT16(BLen), B:BLen/binary, _/binary>> = KeyStruct,
+ ?KEY_EXCHANGE_SRP, Version) ->
+ Params = #server_srp_params{srp_n = N, srp_g = G, srp_s = S, srp_b = B},
+ {BinMsg, HashSign, Signature} = dec_ske_params(NLen + GLen + SLen + BLen + 7, KeyStruct, Version),
+ #server_key_params{params = Params,
+ params_bin = BinMsg,
+ hashsign = HashSign,
+ signature = Signature};
dec_server_key(_, _, _) ->
throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE)).
@@ -1174,6 +1223,11 @@ dec_hello_extensions(<<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), Info:Len/binar
dec_hello_extensions(Rest, [{renegotiation_info,
#renegotiation_info{renegotiated_connection = RenegotiateInfo}} | Acc]);
+dec_hello_extensions(<<?UINT16(?SRP_EXT), ?UINT16(Len), ?BYTE(SRPLen), SRP:SRPLen/binary, Rest/binary>>, Acc)
+ when Len == SRPLen + 2 ->
+ dec_hello_extensions(Rest, [{srp,
+ #srp{username = SRP}} | Acc]);
+
dec_hello_extensions(<<?UINT16(?SIGNATURE_ALGORITHMS_EXT), ?UINT16(Len),
ExtData:Len/binary, Rest/binary>>, Acc) ->
SignAlgoListLen = Len - 2,
@@ -1231,6 +1285,7 @@ enc_hs(#client_hello{client_version = {Major, Minor},
cipher_suites = CipherSuites,
compression_methods = CompMethods,
renegotiation_info = RenegotiationInfo,
+ srp = SRP,
hash_signs = HashSigns,
next_protocol_negotiation = NextProtocolNegotiation}, _Version) ->
SIDLength = byte_size(SessionID),
@@ -1238,7 +1293,7 @@ enc_hs(#client_hello{client_version = {Major, Minor},
CmLength = byte_size(BinCompMethods),
BinCipherSuites = list_to_binary(CipherSuites),
CsLength = byte_size(BinCipherSuites),
- Extensions0 = hello_extensions(RenegotiationInfo, NextProtocolNegotiation),
+ Extensions0 = hello_extensions(RenegotiationInfo, SRP, NextProtocolNegotiation),
Extensions1 = if
Major == 3, Minor >=3 -> Extensions0 ++ hello_extensions(HashSigns);
true -> Extensions0
@@ -1333,7 +1388,10 @@ enc_cke(Identity = #client_rsa_psk_identity{identity = undefined}, Version) ->
enc_cke(#client_rsa_psk_identity{identity = Id, exchange_keys = ExchangeKeys}, Version) ->
EncPMS = enc_cke(ExchangeKeys, Version),
Len = byte_size(Id),
- <<?UINT16(Len), Id/binary, EncPMS/binary>>.
+ <<?UINT16(Len), Id/binary, EncPMS/binary>>;
+enc_cke(#client_srp_public{srp_a = A}, _) ->
+ Len = byte_size(A),
+ <<?UINT16(Len), A/binary>>.
enc_server_key(#server_dh_params{dh_p = P, dh_g = G, dh_y = Y}) ->
PLen = byte_size(P),
@@ -1353,7 +1411,14 @@ enc_server_key(#server_dhe_psk_params{
GLen = byte_size(G),
YLen = byte_size(Y),
<<?UINT16(Len), PskIdentityHint/binary,
- ?UINT16(PLen), P/binary, ?UINT16(GLen), G/binary, ?UINT16(YLen), Y/binary>>.
+ ?UINT16(PLen), P/binary, ?UINT16(GLen), G/binary, ?UINT16(YLen), Y/binary>>;
+enc_server_key(#server_srp_params{srp_n = N, srp_g = G, srp_s = S, srp_b = B}) ->
+ NLen = byte_size(N),
+ GLen = byte_size(G),
+ SLen = byte_size(S),
+ BLen = byte_size(B),
+ <<?UINT16(NLen), N/binary, ?UINT16(GLen), G/binary,
+ ?BYTE(SLen), S/binary, ?UINT16(BLen), B/binary>>.
enc_sign({_, anon}, _Sign, _Version) ->
<<>>;
@@ -1369,13 +1434,20 @@ enc_sign(_HashSign, Sign, _Version) ->
hello_extensions(RenegotiationInfo, NextProtocolNegotiation) ->
hello_extensions(RenegotiationInfo) ++ next_protocol_extension(NextProtocolNegotiation).
+hello_extensions(RenegotiationInfo, SRP, NextProtocolNegotiation) ->
+ hello_extensions(RenegotiationInfo) ++ hello_extensions(SRP) ++ next_protocol_extension(NextProtocolNegotiation).
+
%% Renegotiation info
hello_extensions(#renegotiation_info{renegotiated_connection = undefined}) ->
[];
hello_extensions(#renegotiation_info{} = Info) ->
[Info];
+hello_extensions(#srp{} = Info) ->
+ [Info];
hello_extensions(#hash_sign_algos{} = Info) ->
- [Info].
+ [Info];
+hello_extensions(undefined) ->
+ [].
next_protocol_extension(undefined) ->
[];
@@ -1402,6 +1474,11 @@ enc_hello_extensions([#renegotiation_info{renegotiated_connection = Info} | Rest
Len = InfoLen +1,
enc_hello_extensions(Rest, <<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), ?BYTE(InfoLen), Info/binary, Acc/binary>>);
+enc_hello_extensions([#srp{username = UserName} | Rest], Acc) ->
+ SRPLen = byte_size(UserName),
+ Len = SRPLen + 2,
+ enc_hello_extensions(Rest, <<?UINT16(?SRP_EXT), ?UINT16(Len), ?BYTE(SRPLen), UserName/binary, Acc/binary>>);
+
enc_hello_extensions([#hash_sign_algos{hash_sign_algos = HashSignAlgos} | Rest], Acc) ->
SignAlgoList = << <<(ssl_cipher:hash_algorithm(Hash)):8, (ssl_cipher:sign_algorithm(Sign)):8>> ||
{Hash, Sign} <- HashSignAlgos >>,
@@ -1517,6 +1594,9 @@ key_exchange_alg(dhe_psk) ->
?KEY_EXCHANGE_DHE_PSK;
key_exchange_alg(rsa_psk) ->
?KEY_EXCHANGE_RSA_PSK;
+key_exchange_alg(Alg)
+ when Alg == srp_rsa; Alg == srp_dss; Alg == srp_anon ->
+ ?KEY_EXCHANGE_SRP;
key_exchange_alg(_) ->
?NULL.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 15:39:14 +0000