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-rw-r--r--lib/public_key/src/pubkey_ssh.erl71
1 files changed, 41 insertions, 30 deletions
diff --git a/lib/public_key/src/pubkey_ssh.erl b/lib/public_key/src/pubkey_ssh.erl
index 3addbfe3c6..ba67abb4eb 100644
--- a/lib/public_key/src/pubkey_ssh.erl
+++ b/lib/public_key/src/pubkey_ssh.erl
@@ -54,6 +54,8 @@ decode(Bin, public_key)->
end;
decode(Bin, rfc4716_public_key) ->
rfc4716_decode(Bin);
+decode(Bin, ssh2_pubkey) ->
+ ssh2_pubkey_decode(Bin);
decode(Bin, Type) ->
openssh_decode(Bin, Type).
@@ -63,6 +65,8 @@ decode(Bin, Type) ->
%%
%% Description: Encodes a list of ssh file entries.
%%--------------------------------------------------------------------
+encode(Bin, ssh2_pubkey) ->
+ ssh2_pubkey_encode(Bin);
encode(Entries, Type) ->
iolist_to_binary(lists:map(fun({Key, Attributes}) ->
do_encode(Type, Key, Attributes)
@@ -221,36 +225,13 @@ decode_comment(Comment) ->
[{comment, string_decode(iolist_to_binary(Comment))}].
-openssh_pubkey_decode(<<"ssh-rsa">>, Base64Enc) ->
- <<?UINT32(StrLen), _:StrLen/binary,
- ?UINT32(SizeE), E:SizeE/binary,
- ?UINT32(SizeN), N:SizeN/binary>>
- = base64:mime_decode(Base64Enc),
- #'RSAPublicKey'{modulus = erlint(SizeN, N),
- publicExponent = erlint(SizeE, E)};
-
-openssh_pubkey_decode(<<"ssh-dss">>, Base64Enc) ->
- <<?UINT32(StrLen), _:StrLen/binary,
- ?UINT32(SizeP), P:SizeP/binary,
- ?UINT32(SizeQ), Q:SizeQ/binary,
- ?UINT32(SizeG), G:SizeG/binary,
- ?UINT32(SizeY), Y:SizeY/binary>>
- = base64:mime_decode(Base64Enc),
- {erlint(SizeY, Y),
- #'Dss-Parms'{p = erlint(SizeP, P),
- q = erlint(SizeQ, Q),
- g = erlint(SizeG, G)}};
-
-openssh_pubkey_decode(<<"ecdsa-sha2-", Id/binary>>, Base64Enc) ->
- %% rfc5656#section-3.1
- <<?UINT32(StrLen), _:StrLen/binary,
- ?UINT32(SizeId), Id:SizeId/binary,
- ?UINT32(SizeQ), Q:SizeQ/binary>>
- = base64:mime_decode(Base64Enc),
- {#'ECPoint'{point = Q}, {namedCurve,public_key:ssh_curvename2oid(Id)}};
-
-openssh_pubkey_decode(KeyType, Base64Enc) ->
- {KeyType, base64:mime_decode(Base64Enc)}.
+openssh_pubkey_decode(Type, Base64Enc) ->
+ try
+ ssh2_pubkey_decode(Type, base64:mime_decode(Base64Enc))
+ catch
+ _:_ ->
+ {Type, base64:mime_decode(Base64Enc)}
+ end.
erlint(MPIntSize, MPIntValue) ->
@@ -416,6 +397,36 @@ ssh2_pubkey_encode(Key={#'ECPoint'{point = Q}, {namedCurve,OID}}) ->
(string(IdB))/binary,
(string(Q))/binary>>.
+
+ssh2_pubkey_decode(Bin = <<?UINT32(Len), Type:Len/binary, _/binary>>) ->
+ ssh2_pubkey_decode(Type, Bin).
+
+ssh2_pubkey_decode(<<"ssh-rsa">>,
+ <<?UINT32(Len), _:Len/binary,
+ ?UINT32(SizeE), E:SizeE/binary,
+ ?UINT32(SizeN), N:SizeN/binary>>) ->
+ #'RSAPublicKey'{modulus = erlint(SizeN, N),
+ publicExponent = erlint(SizeE, E)};
+
+ssh2_pubkey_decode(<<"ssh-dss">>,
+ <<?UINT32(Len), _:Len/binary,
+ ?UINT32(SizeP), P:SizeP/binary,
+ ?UINT32(SizeQ), Q:SizeQ/binary,
+ ?UINT32(SizeG), G:SizeG/binary,
+ ?UINT32(SizeY), Y:SizeY/binary>>) ->
+ {erlint(SizeY, Y),
+ #'Dss-Parms'{p = erlint(SizeP, P),
+ q = erlint(SizeQ, Q),
+ g = erlint(SizeG, G)}};
+ssh2_pubkey_decode(<<"ecdsa-sha2-",Id/binary>>,
+ <<?UINT32(Len), ECDSA_SHA2_etc:Len/binary,
+ ?UINT32(SizeId), Id:SizeId/binary,
+ ?UINT32(SizeQ), Q:SizeQ/binary>>) ->
+ <<"ecdsa-sha2-", Id/binary>> = ECDSA_SHA2_etc,
+ {#'ECPoint'{point = Q}, {namedCurve,public_key:ssh_curvename2oid(Id)}}.
+
+
+
is_key_field(<<"ssh-dss">>) -> true;
is_key_field(<<"ssh-rsa">>) -> true;
is_key_field(<<"ecdsa-sha2-",Id/binary>>) -> is_ssh_curvename(Id);