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-rw-r--r--lib/ssh/src/ssh_transport.erl224
1 files changed, 107 insertions, 117 deletions
diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl
index 9bebaf2d9b..02c995399a 100644
--- a/lib/ssh/src/ssh_transport.erl
+++ b/lib/ssh/src/ssh_transport.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2017. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -79,6 +79,10 @@ default_algorithms() -> [{K,default_algorithms(K)} || K <- algo_classes()].
algo_classes() -> [kex, public_key, cipher, mac, compression].
+default_algorithms(kex) ->
+ supported_algorithms(kex, [
+ 'diffie-hellman-group1-sha1' % Gone in OpenSSH 7.3.p1
+ ]);
default_algorithms(cipher) ->
supported_algorithms(cipher, same(['AEAD_AES_128_GCM',
@@ -95,34 +99,39 @@ supported_algorithms() -> [{K,supported_algorithms(K)} || K <- algo_classes()].
supported_algorithms(kex) ->
select_crypto_supported(
[
- {'ecdh-sha2-nistp256', [{public_keys,ecdh}, {ec_curve,secp256r1}, {hashs,sha256}]},
{'ecdh-sha2-nistp384', [{public_keys,ecdh}, {ec_curve,secp384r1}, {hashs,sha384}]},
- {'diffie-hellman-group14-sha1', [{public_keys,dh}, {hashs,sha}]},
+ {'ecdh-sha2-nistp521', [{public_keys,ecdh}, {ec_curve,secp521r1}, {hashs,sha512}]},
+ {'ecdh-sha2-nistp256', [{public_keys,ecdh}, {ec_curve,secp256r1}, {hashs,sha256}]},
{'diffie-hellman-group-exchange-sha256', [{public_keys,dh}, {hashs,sha256}]},
+ {'diffie-hellman-group16-sha512', [{public_keys,dh}, {hashs,sha512}]}, % In OpenSSH 7.3.p1
+ {'diffie-hellman-group18-sha512', [{public_keys,dh}, {hashs,sha512}]}, % In OpenSSH 7.3.p1
+ {'diffie-hellman-group14-sha256', [{public_keys,dh}, {hashs,sha256}]}, % In OpenSSH 7.3.p1
+ {'diffie-hellman-group14-sha1', [{public_keys,dh}, {hashs,sha}]},
{'diffie-hellman-group-exchange-sha1', [{public_keys,dh}, {hashs,sha}]},
- {'ecdh-sha2-nistp521', [{public_keys,ecdh}, {ec_curve,secp521r1}, {hashs,sha512}]},
{'diffie-hellman-group1-sha1', [{public_keys,dh}, {hashs,sha}]}
]);
supported_algorithms(public_key) ->
select_crypto_supported(
- [{'ecdsa-sha2-nistp256', [{public_keys,ecdsa}, {hashs,sha256}, {ec_curve,secp256r1}]},
+ [
{'ecdsa-sha2-nistp384', [{public_keys,ecdsa}, {hashs,sha384}, {ec_curve,secp384r1}]},
{'ecdsa-sha2-nistp521', [{public_keys,ecdsa}, {hashs,sha512}, {ec_curve,secp521r1}]},
+ {'ecdsa-sha2-nistp256', [{public_keys,ecdsa}, {hashs,sha256}, {ec_curve,secp256r1}]},
{'ssh-rsa', [{public_keys,rsa}, {hashs,sha} ]},
- {'ssh-dss', [{public_keys,dss}, {hashs,sha} ]}
+ {'ssh-dss', [{public_keys,dss}, {hashs,sha} ]} % Gone in OpenSSH 7.3.p1
]);
supported_algorithms(cipher) ->
same(
select_crypto_supported(
- [{'aes256-ctr', [{ciphers,{aes_ctr,256}}]},
- {'aes192-ctr', [{ciphers,{aes_ctr,192}}]},
- {'aes128-ctr', [{ciphers,{aes_ctr,128}}]},
- {'aes128-cbc', [{ciphers,aes_cbc128}]},
+ [
+ {'[email protected]', [{ciphers,{aes_gcm,256}}]},
+ {'aes256-ctr', [{ciphers,{aes_ctr,256}}]},
+ {'aes192-ctr', [{ciphers,{aes_ctr,192}}]},
{'[email protected]', [{ciphers,{aes_gcm,128}}]},
- {'[email protected]', [{ciphers,{aes_gcm,256}}]},
- {'AEAD_AES_128_GCM', [{ciphers,{aes_gcm,128}}]},
+ {'aes128-ctr', [{ciphers,{aes_ctr,128}}]},
{'AEAD_AES_256_GCM', [{ciphers,{aes_gcm,256}}]},
+ {'AEAD_AES_128_GCM', [{ciphers,{aes_gcm,128}}]},
+ {'aes128-cbc', [{ciphers,aes_cbc128}]},
{'3des-cbc', [{ciphers,des3_cbc}]}
]
));
@@ -144,14 +153,14 @@ supported_algorithms(compression) ->
%%%----------------------------------------------------------------------------
versions(client, Options)->
- Vsn = proplists:get_value(vsn, Options, ?DEFAULT_CLIENT_VERSION),
+ Vsn = ?GET_INTERNAL_OPT(vsn, Options, ?DEFAULT_CLIENT_VERSION),
{Vsn, format_version(Vsn, software_version(Options))};
versions(server, Options) ->
- Vsn = proplists:get_value(vsn, Options, ?DEFAULT_SERVER_VERSION),
+ Vsn = ?GET_INTERNAL_OPT(vsn, Options, ?DEFAULT_SERVER_VERSION),
{Vsn, format_version(Vsn, software_version(Options))}.
software_version(Options) ->
- case proplists:get_value(id_string, Options) of
+ case ?GET_OPT(id_string, Options) of
undefined ->
"Erlang"++ssh_vsn();
{random,Nlo,Nup} ->
@@ -162,7 +171,7 @@ software_version(Options) ->
ssh_vsn() ->
try {ok,L} = application:get_all_key(ssh),
- proplists:get_value(vsn,L,"")
+ proplists:get_value(vsn, L, "")
of
"" -> "";
VSN when is_list(VSN) -> "/" ++ VSN;
@@ -223,13 +232,7 @@ key_exchange_init_msg(Ssh0) ->
kex_init(#ssh{role = Role, opts = Opts, available_host_keys = HostKeyAlgs}) ->
Random = ssh_bits:random(16),
- PrefAlgs =
- case proplists:get_value(preferred_algorithms,Opts) of
- undefined ->
- default_algorithms();
- Algs0 ->
- Algs0
- end,
+ PrefAlgs = ?GET_OPT(preferred_algorithms, Opts),
kexinit_message(Role, Random, PrefAlgs, HostKeyAlgs).
key_init(client, Ssh, Value) ->
@@ -275,11 +278,12 @@ handle_kexinit_msg(#ssh_msg_kexinit{} = CounterPart, #ssh_msg_kexinit{} = Own,
true ->
key_exchange_first_msg(Algoritms#alg.kex,
Ssh0#ssh{algorithms = Algoritms});
- _ ->
+ {false,Alg} ->
%% TODO: Correct code?
ssh_connection_handler:disconnect(
#ssh_msg_disconnect{code = ?SSH_DISCONNECT_KEY_EXCHANGE_FAILED,
- description = "Selection of key exchange algorithm failed"
+ description = "Selection of key exchange algorithm failed: "
+ ++ Alg
})
end;
@@ -289,30 +293,39 @@ handle_kexinit_msg(#ssh_msg_kexinit{} = CounterPart, #ssh_msg_kexinit{} = Own,
case verify_algorithm(Algoritms) of
true ->
{ok, Ssh#ssh{algorithms = Algoritms}};
- _ ->
+ {false,Alg} ->
ssh_connection_handler:disconnect(
#ssh_msg_disconnect{code = ?SSH_DISCONNECT_KEY_EXCHANGE_FAILED,
- description = "Selection of key exchange algorithm failed"
+ description = "Selection of key exchange algorithm failed: "
+ ++ Alg
})
end.
-verify_algorithm(#alg{kex = undefined}) -> false;
-verify_algorithm(#alg{hkey = undefined}) -> false;
-verify_algorithm(#alg{send_mac = undefined}) -> false;
-verify_algorithm(#alg{recv_mac = undefined}) -> false;
-verify_algorithm(#alg{encrypt = undefined}) -> false;
-verify_algorithm(#alg{decrypt = undefined}) -> false;
-verify_algorithm(#alg{compress = undefined}) -> false;
-verify_algorithm(#alg{decompress = undefined}) -> false;
-verify_algorithm(#alg{kex = Kex}) -> lists:member(Kex, supported_algorithms(kex)).
+verify_algorithm(#alg{kex = undefined}) -> {false, "kex"};
+verify_algorithm(#alg{hkey = undefined}) -> {false, "hkey"};
+verify_algorithm(#alg{send_mac = undefined}) -> {false, "send_mac"};
+verify_algorithm(#alg{recv_mac = undefined}) -> {false, "recv_mac"};
+verify_algorithm(#alg{encrypt = undefined}) -> {false, "encrypt"};
+verify_algorithm(#alg{decrypt = undefined}) -> {false, "decrypt"};
+verify_algorithm(#alg{compress = undefined}) -> {false, "compress"};
+verify_algorithm(#alg{decompress = undefined}) -> {false, "decompress"};
+verify_algorithm(#alg{kex = Kex}) ->
+ case lists:member(Kex, supported_algorithms(kex)) of
+ true -> true;
+ false -> {false, "kex"}
+ end.
%%%----------------------------------------------------------------
%%%
%%% Key exchange initialization
%%%
key_exchange_first_msg(Kex, Ssh0) when Kex == 'diffie-hellman-group1-sha1' ;
- Kex == 'diffie-hellman-group14-sha1' ->
+ Kex == 'diffie-hellman-group14-sha1' ;
+ Kex == 'diffie-hellman-group14-sha256' ;
+ Kex == 'diffie-hellman-group16-sha512' ;
+ Kex == 'diffie-hellman-group18-sha512'
+ ->
{G, P} = dh_group(Kex),
Sz = dh_bits(Ssh0#ssh.algorithms),
{Public, Private} = generate_key(dh, [P,G,2*Sz]),
@@ -322,10 +335,7 @@ key_exchange_first_msg(Kex, Ssh0) when Kex == 'diffie-hellman-group1-sha1' ;
key_exchange_first_msg(Kex, Ssh0=#ssh{opts=Opts}) when Kex == 'diffie-hellman-group-exchange-sha1' ;
Kex == 'diffie-hellman-group-exchange-sha256' ->
- {Min,NBits0,Max} =
- proplists:get_value(dh_gex_limits, Opts, {?DEFAULT_DH_GROUP_MIN,
- ?DEFAULT_DH_GROUP_NBITS,
- ?DEFAULT_DH_GROUP_MAX}),
+ {Min,NBits0,Max} = ?GET_OPT(dh_gex_limits, Opts),
DhBits = dh_bits(Ssh0#ssh.algorithms),
NBits1 =
%% NIST Special Publication 800-57 Part 1 Revision 4: Recommendation for Key Management
@@ -358,6 +368,9 @@ key_exchange_first_msg(Kex, Ssh0) when Kex == 'ecdh-sha2-nistp256' ;
%%%
%%% diffie-hellman-group1-sha1
%%% diffie-hellman-group14-sha1
+%%% diffie-hellman-group14-sha256
+%%% diffie-hellman-group16-sha512
+%%% diffie-hellman-group18-sha512
%%%
handle_kexdh_init(#ssh_msg_kexdh_init{e = E},
Ssh0 = #ssh{algorithms = #alg{kex=Kex} = Algs}) ->
@@ -378,7 +391,7 @@ handle_kexdh_init(#ssh_msg_kexdh_init{e = E},
h_sig = H_SIG
}, Ssh0),
{ok, SshPacket, Ssh1#ssh{keyex_key = {{Private, Public}, {G, P}},
- shared_secret = K,
+ shared_secret = ssh_bits:mpint(K),
exchanged_hash = H,
session_id = sid(Ssh1, H)}};
@@ -404,7 +417,7 @@ handle_kexdh_reply(#ssh_msg_kexdh_reply{public_host_key = PeerPubHostKey,
case verify_host_key(Ssh0, PeerPubHostKey, H, H_SIG) of
ok ->
{SshPacket, Ssh} = ssh_packet(#ssh_msg_newkeys{}, Ssh0),
- {ok, SshPacket, Ssh#ssh{shared_secret = K,
+ {ok, SshPacket, Ssh#ssh{shared_secret = ssh_bits:mpint(K),
exchanged_hash = H,
session_id = sid(Ssh, H)}};
Error ->
@@ -436,7 +449,7 @@ handle_kex_dh_gex_request(#ssh_msg_kex_dh_gex_request{min = Min0,
%% server
{Min, Max} = adjust_gex_min_max(Min0, Max0, Opts),
case public_key:dh_gex_group(Min, NBits, Max,
- proplists:get_value(dh_gex_groups,Opts)) of
+ ?GET_OPT(dh_gex_groups,Opts)) of
{ok, {_, {G,P}}} ->
{SshPacket, Ssh} =
ssh_packet(#ssh_msg_kex_dh_gex_group{p = P, g = G}, Ssh0),
@@ -459,7 +472,7 @@ handle_kex_dh_gex_request(#ssh_msg_kex_dh_gex_request_old{n = NBits},
%% This message was in the draft-00 of rfc4419
%% (https://tools.ietf.org/html/draft-ietf-secsh-dh-group-exchange-00)
%% In later drafts and the rfc is "is used for backward compatibility".
- %% Unfortunatly the rfc does not specify how to treat the parameter n
+ %% Unfortunately the rfc does not specify how to treat the parameter n
%% if there is no group of that modulus length :(
%% The draft-00 however specifies that n is the "... number of bits
%% the subgroup should have at least".
@@ -470,7 +483,7 @@ handle_kex_dh_gex_request(#ssh_msg_kex_dh_gex_request_old{n = NBits},
Max0 = 8192,
{Min, Max} = adjust_gex_min_max(Min0, Max0, Opts),
case public_key:dh_gex_group(Min, NBits, Max,
- proplists:get_value(dh_gex_groups,Opts)) of
+ ?GET_OPT(dh_gex_groups,Opts)) of
{ok, {_, {G,P}}} ->
{SshPacket, Ssh} =
ssh_packet(#ssh_msg_kex_dh_gex_group{p = P, g = G}, Ssh0),
@@ -495,22 +508,18 @@ handle_kex_dh_gex_request(_, _) ->
adjust_gex_min_max(Min0, Max0, Opts) ->
- case proplists:get_value(dh_gex_limits, Opts) of
- undefined ->
- {Min0, Max0};
- {Min1, Max1} ->
- Min2 = max(Min0, Min1),
- Max2 = min(Max0, Max1),
- if
- Min2 =< Max2 ->
- {Min2, Max2};
- Max2 < Min2 ->
- ssh_connection_handler:disconnect(
- #ssh_msg_disconnect{
- code = ?SSH_DISCONNECT_PROTOCOL_ERROR,
- description = "No possible diffie-hellman-group-exchange group possible"
- })
- end
+ {Min1, Max1} = ?GET_OPT(dh_gex_limits, Opts),
+ Min2 = max(Min0, Min1),
+ Max2 = min(Max0, Max1),
+ if
+ Min2 =< Max2 ->
+ {Min2, Max2};
+ Max2 < Min2 ->
+ ssh_connection_handler:disconnect(
+ #ssh_msg_disconnect{
+ code = ?SSH_DISCONNECT_PROTOCOL_ERROR,
+ description = "No possible diffie-hellman-group-exchange group possible"
+ })
end.
@@ -542,7 +551,7 @@ handle_kex_dh_gex_init(#ssh_msg_kex_dh_gex_init{e = E},
ssh_packet(#ssh_msg_kex_dh_gex_reply{public_host_key = MyPubHostKey,
f = Public,
h_sig = H_SIG}, Ssh0),
- {ok, SshPacket, Ssh#ssh{shared_secret = K,
+ {ok, SshPacket, Ssh#ssh{shared_secret = ssh_bits:mpint(K),
exchanged_hash = H,
session_id = sid(Ssh, H)
}};
@@ -578,7 +587,7 @@ handle_kex_dh_gex_reply(#ssh_msg_kex_dh_gex_reply{public_host_key = PeerPubHostK
case verify_host_key(Ssh0, PeerPubHostKey, H, H_SIG) of
ok ->
{SshPacket, Ssh} = ssh_packet(#ssh_msg_newkeys{}, Ssh0),
- {ok, SshPacket, Ssh#ssh{shared_secret = K,
+ {ok, SshPacket, Ssh#ssh{shared_secret = ssh_bits:mpint(K),
exchanged_hash = H,
session_id = sid(Ssh, H)}};
_Error ->
@@ -628,7 +637,7 @@ handle_kex_ecdh_init(#ssh_msg_kex_ecdh_init{q_c = PeerPublic},
h_sig = H_SIG},
Ssh0),
{ok, SshPacket, Ssh1#ssh{keyex_key = {{MyPublic,MyPrivate},Curve},
- shared_secret = K,
+ shared_secret = ssh_bits:mpint(K),
exchanged_hash = H,
session_id = sid(Ssh1, H)}}
catch
@@ -654,7 +663,7 @@ handle_kex_ecdh_reply(#ssh_msg_kex_ecdh_reply{public_host_key = PeerPubHostKey,
case verify_host_key(Ssh0, PeerPubHostKey, H, H_SIG) of
ok ->
{SshPacket, Ssh} = ssh_packet(#ssh_msg_newkeys{}, Ssh0),
- {ok, SshPacket, Ssh#ssh{shared_secret = K,
+ {ok, SshPacket, Ssh#ssh{shared_secret = ssh_bits:mpint(K),
exchanged_hash = H,
session_id = sid(Ssh, H)}};
Error ->
@@ -697,9 +706,9 @@ sid(#ssh{session_id = Id}, _) ->
%% The host key should be read from storage
%%
get_host_key(SSH) ->
- #ssh{key_cb = Mod, opts = Opts, algorithms = ALG} = SSH,
-
- case Mod:host_key(ALG#alg.hkey, Opts) of
+ #ssh{key_cb = {KeyCb,KeyCbOpts}, opts = Opts, algorithms = ALG} = SSH,
+ UserOpts = ?GET_OPT(user_options, Opts),
+ case KeyCb:host_key(ALG#alg.hkey, [{key_cb_private,KeyCbOpts}|UserOpts]) of
{ok, #'RSAPrivateKey'{} = Key} -> Key;
{ok, #'DSAPrivateKey'{} = Key} -> Key;
{ok, #'ECPrivateKey'{} = Key} -> Key;
@@ -745,7 +754,7 @@ public_algo({#'ECPoint'{},{namedCurve,OID}}) ->
accepted_host(Ssh, PeerName, Public, Opts) ->
- case proplists:get_value(silently_accept_hosts, Opts, false) of
+ case ?GET_OPT(silently_accept_hosts, Opts) of
F when is_function(F,2) ->
true == (catch F(PeerName, public_key:ssh_hostkey_fingerprint(Public)));
{DigestAlg,F} when is_function(F,2) ->
@@ -756,16 +765,16 @@ accepted_host(Ssh, PeerName, Public, Opts) ->
yes == yes_no(Ssh, "New host " ++ PeerName ++ " accept")
end.
-known_host_key(#ssh{opts = Opts, key_cb = Mod, peer = Peer} = Ssh,
+known_host_key(#ssh{opts = Opts, key_cb = {KeyCb,KeyCbOpts}, peer = {PeerName,_}} = Ssh,
Public, Alg) ->
- PeerName = peer_name(Peer),
- case Mod:is_host_key(Public, PeerName, Alg, Opts) of
+ UserOpts = ?GET_OPT(user_options, Opts),
+ case KeyCb:is_host_key(Public, PeerName, Alg, [{key_cb_private,KeyCbOpts}|UserOpts]) of
true ->
ok;
false ->
case accepted_host(Ssh, PeerName, Public, Opts) of
true ->
- Mod:add_host_key(PeerName, Public, Opts);
+ KeyCb:add_host_key(PeerName, Public, [{key_cb_private,KeyCbOpts}|UserOpts]);
false ->
{error, rejected}
end
@@ -1604,48 +1613,27 @@ mac('hmac-sha2-256', Key, SeqNum, Data) ->
mac('hmac-sha2-512', Key, SeqNum, Data) ->
crypto:hmac(sha512, Key, [<<?UINT32(SeqNum)>>, Data]).
-%% return N hash bytes (HASH)
-hash(SSH, Char, Bits) ->
- HASH =
- case SSH#ssh.kex of
- 'diffie-hellman-group1-sha1' ->
- fun(Data) -> crypto:hash(sha, Data) end;
- 'diffie-hellman-group14-sha1' ->
- fun(Data) -> crypto:hash(sha, Data) end;
-
- 'diffie-hellman-group-exchange-sha1' ->
- fun(Data) -> crypto:hash(sha, Data) end;
- 'diffie-hellman-group-exchange-sha256' ->
- fun(Data) -> crypto:hash(sha256, Data) end;
-
- 'ecdh-sha2-nistp256' ->
- fun(Data) -> crypto:hash(sha256,Data) end;
- 'ecdh-sha2-nistp384' ->
- fun(Data) -> crypto:hash(sha384,Data) end;
- 'ecdh-sha2-nistp521' ->
- fun(Data) -> crypto:hash(sha512,Data) end;
- _ ->
- exit({bad_algorithm,SSH#ssh.kex})
- end,
- hash(SSH, Char, Bits, HASH).
-hash(_SSH, _Char, 0, _HASH) ->
+%%%----------------------------------------------------------------
+%% return N hash bytes (HASH)
+hash(_SSH, _Char, 0) ->
<<>>;
-hash(SSH, Char, N, HASH) ->
- K = ssh_bits:mpint(SSH#ssh.shared_secret),
+hash(SSH, Char, N) ->
+ HashAlg = sha(SSH#ssh.kex),
+ K = SSH#ssh.shared_secret,
H = SSH#ssh.exchanged_hash,
- SessionID = SSH#ssh.session_id,
- K1 = HASH([K, H, Char, SessionID]),
+ K1 = crypto:hash(HashAlg, [K, H, Char, SSH#ssh.session_id]),
Sz = N div 8,
- <<Key:Sz/binary, _/binary>> = hash(K, H, K1, N-128, HASH),
+ <<Key:Sz/binary, _/binary>> = hash(K, H, K1, N-128, HashAlg),
Key.
-hash(_K, _H, Ki, N, _HASH) when N =< 0 ->
+hash(_K, _H, Ki, N, _HashAlg) when N =< 0 ->
Ki;
-hash(K, H, Ki, N, HASH) ->
- Kj = HASH([K, H, Ki]),
- hash(K, H, <<Ki/binary, Kj/binary>>, N-128, HASH).
+hash(K, H, Ki, N, HashAlg) ->
+ Kj = crypto:hash(HashAlg, [K, H, Ki]),
+ hash(K, H, <<Ki/binary, Kj/binary>>, N-128, HashAlg).
+%%%----------------------------------------------------------------
kex_h(SSH, Key, E, F, K) ->
KeyBin = public_key:ssh_encode(Key, ssh2_pubkey),
L = <<?Estring(SSH#ssh.c_version), ?Estring(SSH#ssh.s_version),
@@ -1688,11 +1676,17 @@ sha(secp384r1) -> sha384;
sha(secp521r1) -> sha512;
sha('diffie-hellman-group1-sha1') -> sha;
sha('diffie-hellman-group14-sha1') -> sha;
+sha('diffie-hellman-group14-sha256') -> sha256;
+sha('diffie-hellman-group16-sha512') -> sha512;
+sha('diffie-hellman-group18-sha512') -> sha512;
sha('diffie-hellman-group-exchange-sha1') -> sha;
sha('diffie-hellman-group-exchange-sha256') -> sha256;
sha(?'secp256r1') -> sha(secp256r1);
sha(?'secp384r1') -> sha(secp384r1);
-sha(?'secp521r1') -> sha(secp521r1).
+sha(?'secp521r1') -> sha(secp521r1);
+sha('ecdh-sha2-nistp256') -> sha(secp256r1);
+sha('ecdh-sha2-nistp384') -> sha(secp384r1);
+sha('ecdh-sha2-nistp521') -> sha(secp521r1).
mac_key_bytes('hmac-sha1') -> 20;
@@ -1715,9 +1709,6 @@ mac_digest_size('AEAD_AES_128_GCM') -> 16;
mac_digest_size('AEAD_AES_256_GCM') -> 16;
mac_digest_size(none) -> 0.
-peer_name({Host, _}) ->
- Host.
-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% Diffie-Hellman utils
@@ -1725,7 +1716,10 @@ peer_name({Host, _}) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
dh_group('diffie-hellman-group1-sha1') -> ?dh_group1;
-dh_group('diffie-hellman-group14-sha1') -> ?dh_group14.
+dh_group('diffie-hellman-group14-sha1') -> ?dh_group14;
+dh_group('diffie-hellman-group14-sha256') -> ?dh_group14;
+dh_group('diffie-hellman-group16-sha512') -> ?dh_group16;
+dh_group('diffie-hellman-group18-sha512') -> ?dh_group18.
%%%----------------------------------------------------------------
parallell_gen_key(Ssh = #ssh{keyex_key = {x, {G, P}},
@@ -1816,10 +1810,6 @@ len_supported(Name, Len) ->
same(Algs) -> [{client2server,Algs}, {server2client,Algs}].
-
-%% default_algorithms(kex) -> % Example of how to disable an algorithm
-%% supported_algorithms(kex, ['ecdh-sha2-nistp521']);
-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% Other utils
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 06:23:07 +0000