ssh: ECDSA public key implemented

1 files changed, 39 insertions, 24 deletions

diff --git a/lib/ssh/src/ssh_file.erl b/lib/ssh/src/ssh_file.erl
index b98a8a8410..4e6d58cbff 100644
--- a/lib/ssh/src/ssh_file.erl
+++ b/lib/ssh/src/ssh_file.erl
@@ -52,8 +52,20 @@ host_key(Algorithm, Opts) ->
     %% so probably we could hardcod Password = ignore, but
     %% we keep it as an undocumented option for now.
     Password = proplists:get_value(identity_pass_phrase(Algorithm), Opts, ignore),
-    decode(File, Password).
-
+    case decode(File, Password) of
+	{ok,Key} ->
+	    case {Key,Algorithm} of
+		{#'RSAPrivateKey'{}, 'ssh-rsa'} -> {ok,Key};
+		{#'DSAPrivateKey'{}, 'ssh-dss'} -> {ok,Key};
+		{#'ECPrivateKey'{parameters = {namedCurve, ?'secp256r1'}}, 'ecdsa-sha2-nistp256'} -> {ok,Key};
+		{#'ECPrivateKey'{parameters = {namedCurve, ?'secp384r1'}}, 'ecdsa-sha2-nistp384'} -> {ok,Key};
+		{#'ECPrivateKey'{parameters = {namedCurve, ?'secp521r1'}}, 'ecdsa-sha2-nistp521'} -> {ok,Key};
+		_ -> 
+		    {error,bad_keytype_in_file}
+	    end;
+	Other ->
+	    Other
+    end.
 
 is_auth_key(Key, User,Opts) ->
     case lookup_user_key(Key, User, Opts) of
@@ -81,16 +93,15 @@ user_key(Algorithm, Opts) ->
 
 %% Internal functions %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-file_base_name('ssh-rsa') ->
-    "ssh_host_rsa_key";
-file_base_name('ssh-dss') ->
-    "ssh_host_dsa_key";
-file_base_name(_) ->
-    "ssh_host_key".
+file_base_name('ssh-rsa'            ) -> "ssh_host_rsa_key";
+file_base_name('ssh-dss'            ) -> "ssh_host_dsa_key";
+file_base_name('ecdsa-sha2-nistp256') -> "ssh_host_ecdsa_key";
+file_base_name('ecdsa-sha2-nistp384') -> "ssh_host_ecdsa_key";
+file_base_name('ecdsa-sha2-nistp521') -> "ssh_host_ecdsa_key";
+file_base_name(_                    ) -> "ssh_host_key".
 
 decode(File, Password) ->
-    try 
-	{ok, decode_ssh_file(read_ssh_file(File), Password)}
+    try {ok, decode_ssh_file(read_ssh_file(File), Password)}
     catch 
 	throw:Reason ->
 	    {error, Reason};
@@ -215,20 +226,18 @@ do_lookup_host_key(KeyToMatch, Host, Alg, Opts) ->
 	Error -> Error
     end.
 
-identity_key_filename('ssh-dss') ->
-    "id_dsa";
-identity_key_filename('ssh-rsa') ->
-    "id_rsa".
-
-identity_pass_phrase("ssh-dss") ->
-    dsa_pass_phrase;
-identity_pass_phrase('ssh-dss') ->
-    dsa_pass_phrase;
-identity_pass_phrase('ssh-rsa') ->
-    rsa_pass_phrase;
-identity_pass_phrase("ssh-rsa") ->
-    rsa_pass_phrase.
-
+identity_key_filename('ssh-dss'            ) -> "id_dsa";
+identity_key_filename('ssh-rsa'            ) -> "id_rsa";
+identity_key_filename('ecdsa-sha2-nistp256') -> "id_ecdsa";
+identity_key_filename('ecdsa-sha2-nistp384') -> "id_ecdsa";
+identity_key_filename('ecdsa-sha2-nistp521') -> "id_ecdsa".
+
+identity_pass_phrase("ssh-dss"       ) -> dsa_pass_phrase;
+identity_pass_phrase("ssh-rsa"       ) -> rsa_pass_phrase;
+identity_pass_phrase("ecdsa-sha2-"++_) -> ecdsa_pass_phrase;
+identity_pass_phrase(P) when is_atom(P) -> 
+    identity_pass_phrase(atom_to_list(P)).
+    
 lookup_host_key_fd(Fd, KeyToMatch, Host, KeyType) ->
     case io:get_line(Fd, '') of
 	eof ->
@@ -267,6 +276,12 @@ key_match(#'RSAPublicKey'{}, 'ssh-rsa') ->
     true;
 key_match({_, #'Dss-Parms'{}}, 'ssh-dss') ->
     true;
+key_match({#'ECPoint'{},<<"nistp256">>}, 'ecdsa-sha2-nistp256') ->
+    true;
+key_match({#'ECPoint'{},<<"nistp384">>}, 'ecdsa-sha2-nistp384') ->
+    true;
+key_match({#'ECPoint'{},<<"nistp521">>}, 'ecdsa-sha2-nistp521') ->
+    true;
 key_match(_, _) ->
     false.