diff options
Diffstat (limited to 'lib/ssh')
| -rw-r--r-- | lib/ssh/src/ssh_connection_handler.erl | 7 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_message.erl | 4 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_options.erl | 29 | ||||
| -rw-r--r-- | lib/ssh/src/ssh_transport.erl | 18 |
4 files changed, 26 insertions, 32 deletions
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl index 6a6b9896cb..a77cfe51b5 100644 --- a/lib/ssh/src/ssh_connection_handler.erl +++ b/lib/ssh/src/ssh_connection_handler.erl @@ -1712,7 +1712,12 @@ ext_info({"server-sig-algs",SigAlgs}, D0 = #data{ssh_params=#ssh{role=client, ], CommonAlgs = [Alg || Alg <- ServerSigAlgs, lists:member(Alg, ClientSigAlgs)], - D0#data{ssh_params = Ssh0#ssh{userauth_pubkeys = CommonAlgs} }; + SelectedAlgs = + case CommonAlgs of + [] -> ClientSigAlgs; % server-sig-algs value is just an advice + _ -> CommonAlgs + end, + D0#data{ssh_params = Ssh0#ssh{userauth_pubkeys = SelectedAlgs} }; ext_info(_, D0) -> %% Not implemented diff --git a/lib/ssh/src/ssh_message.erl b/lib/ssh/src/ssh_message.erl index 609040826f..4f2eeca026 100644 --- a/lib/ssh/src/ssh_message.erl +++ b/lib/ssh/src/ssh_message.erl @@ -598,8 +598,8 @@ decode_kex_init(<<?DEC_BIN(Data,__0), Rest/binary>>, Acc, N) -> %%% Signature decode/encode %%% -decode_signature(<<?DEC_BIN(_Alg,__0), ?UINT32(_), Signature/binary>>) -> - Signature. +decode_signature(<<?DEC_BIN(Alg,__0), ?UINT32(_), Signature/binary>>) -> + {binary_to_list(Alg), Signature}. encode_signature({#'RSAPublicKey'{},Sign}, Signature) -> diff --git a/lib/ssh/src/ssh_options.erl b/lib/ssh/src/ssh_options.erl index 12c0190082..aebb5a7062 100644 --- a/lib/ssh/src/ssh_options.erl +++ b/lib/ssh/src/ssh_options.erl @@ -392,12 +392,6 @@ default(server) -> class => user_options }, - {preferred_algorithms, def} => - #{default => ssh:default_algorithms(), - chk => fun check_preferred_algorithms/1, - class => user_options - }, - %%%%% Undocumented {infofun, def} => #{default => fun(_,_,_) -> void end, @@ -436,26 +430,11 @@ default(client) -> }, {pref_public_key_algs, def} => - #{default => ssh_transport:default_algorithms(public_key) -- ['rsa-sha2-256', - 'rsa-sha2-512'], + #{default => ssh_transport:default_algorithms(public_key), chk => fun check_pref_public_key_algs/1, class => user_options }, - {preferred_algorithms, def} => - #{default => [{K,Vs} || {K,Vs0} <- ssh:default_algorithms(), - Vs <- [case K of - public_key -> - Vs0 -- ['rsa-sha2-256', - 'rsa-sha2-512']; - _ -> - Vs0 - end] - ], - chk => fun check_preferred_algorithms/1, - class => user_options - }, - {dh_gex_limits, def} => #{default => {1024, 6144, 8192}, % FIXME: Is this true nowadays? chk => fun({Min,I,Max}) -> @@ -521,6 +500,12 @@ default(common) -> class => user_options }, + {preferred_algorithms, def} => + #{default => ssh:default_algorithms(), + chk => fun check_preferred_algorithms/1, + class => user_options + }, + {id_string, def} => #{default => undefined, % FIXME: see ssh_transport:ssh_vsn/0 chk => fun(random) -> diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl index 1a15798080..412f5de9de 100644 --- a/lib/ssh/src/ssh_transport.erl +++ b/lib/ssh/src/ssh_transport.erl @@ -776,16 +776,20 @@ extract_public_key(#'ECPrivateKey'{parameters = {namedCurve,OID}, {#'ECPoint'{point=Q}, {namedCurve,OID}}. -verify_host_key(#ssh{algorithms=Alg}=SSH, PublicKey, Digest, Signature) -> - case verify(Digest, sha(Alg#alg.hkey), Signature, PublicKey) of - false -> - {error, bad_signature}; - true -> - known_host_key(SSH, PublicKey, public_algo(PublicKey)) +verify_host_key(#ssh{algorithms=Alg}=SSH, PublicKey, Digest, {AlgStr,Signature}) -> + case atom_to_list(Alg#alg.hkey) of + AlgStr -> + case verify(Digest, sha(Alg#alg.hkey), Signature, PublicKey) of + false -> + {error, bad_signature}; + true -> + known_host_key(SSH, PublicKey, public_algo(PublicKey)) + end; + _ -> + {error, bad_signature_name} end. - accepted_host(Ssh, PeerName, Public, Opts) -> case ?GET_OPT(silently_accept_hosts, Opts) of |