PublickeyAuthenticator implementation problem

[Sascha Hagedorn <sa...@googlemail.com>]

Hello,



I am using Apache SSHD 0.4.0 and I am struggling to get a
PublickeyAuthenticator implementation to work. My goal is to authenticate
the connecting user against public keys in the systems authorized_keys file.
For that I am parsing the authorized_keys file and decode the Base64 part of
each line to get the public key in it’s original encoding which I then
compare to the public key  from the authenticate() interface method.
Unfortunately the two public keys are not the same resulting in a failed
authentication. There is currently only one public/private key pair in the
testing environment so the authentication should be successful.



I tried searching for an example implementation but couldn’t find one. I
posted this question on stackoverflow.com too but with no luck. Instead
someone suggested to ask here on the mailing list.



Could anyone on the list could give me a hint on what I am missing or if
there is a better approach implementing a public key authenticator?



Thanks,

Sascha