diff options
Diffstat (limited to 'lib/ssh/src/ssh.erl')
| -rw-r--r-- | lib/ssh/src/ssh.erl | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl index 994c77436a..cada109df0 100644 --- a/lib/ssh/src/ssh.erl +++ b/lib/ssh/src/ssh.erl @@ -30,6 +30,8 @@ stop_listener/1, stop_listener/2, stop_daemon/1, stop_daemon/2, shell/1, shell/2, shell/3]). +-export([sign_data/2, verify_data/3]). + %%-------------------------------------------------------------------- %% Function: start([, Type]) -> ok %% @@ -94,11 +96,17 @@ connect(Host, Port, Options, Timeout) -> do_demonitor(MRef, Manager), {error, Other}; {'DOWN', MRef, _, Manager, Reason} when is_pid(Manager) -> + error_logger:warning_report([{ssh, connect}, + {diagnose, + "Connection was closed before properly set up."}, + {host, Host}, + {port, Port}, + {reason, Reason}]), receive %% Clear EXIT message from queue {'EXIT', Manager, _What} -> - {error, Reason} + {error, channel_closed} after 0 -> - {error, Reason} + {error, channel_closed} end after Timeout -> do_demonitor(MRef, Manager), @@ -239,6 +247,43 @@ shell(Host, Port, Options) -> Error end. + +%%-------------------------------------------------------------------- +%% Function: sign_data(Data, Algorithm) -> binary() | +%% {error, Reason} +%% +%% Data = binary() +%% Algorithm = "ssh-rsa" +%% +%% Description: Use SSH key to sign data. +%%-------------------------------------------------------------------- +sign_data(Data, Algorithm) when is_binary(Data) -> + case ssh_file:private_identity_key(Algorithm,[]) of + {ok, Key} when Algorithm == "ssh-rsa" -> + ssh_rsa:sign(Key, Data); + Error -> + Error + end. + +%%-------------------------------------------------------------------- +%% Function: verify_data(Data, Signature, Algorithm) -> ok | +%% {error, Reason} +%% +%% Data = binary() +%% Signature = binary() +%% Algorithm = "ssh-rsa" +%% +%% Description: Use SSH signature to verify data. +%%-------------------------------------------------------------------- +verify_data(Data, Signature, Algorithm) when is_binary(Data), is_binary(Signature) -> + case ssh_file:public_identity_key(Algorithm, []) of + {ok, Key} when Algorithm == "ssh-rsa" -> + ssh_rsa:verify(Key, Data, Signature); + Error -> + Error + end. + + %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- |