Re: Design Considerations for New Authentication Methods

From: "Henry B(dot) Hotz" <hotz(at)jpl(dot)nasa(dot)gov>
To: Magnus Hagander <mha(at)sollentuna(dot)net>
Cc: "Stephen Frost" <sfrost(at)snowman(dot)net>, <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Design Considerations for New Authentication Methods
Date: 2006-11-02 18:17:53
Message-ID: DBD248CD-8197-4B1D-8BBB-084778AF34ED@jpl.nasa.gov
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On Nov 2, 2006, at 1:18 AM, Magnus Hagander wrote:

>>> * Henry B. Hotz (hotz(at)jpl(dot)nasa(dot)gov) wrote:
>>>> I've been looking at adding SASL or GSSAPI as an auth
>> method. I have
>>>> some questions about how to handle the flow of control changes.
>>>
>>> Great! I'd love to see that implemented, personally, so if you're
>>> looking for help, please let me know.
>>
>> Thank you. I will! ;-)
>>
>> Do you know Java? I'm doing this ultimately because I want
>> the JDBC driver to support encrypted connections with
>> Kerberos and without needing SSL. As an added plus a
>> Windows-native client should support it.
>
> Interesting, I thought you were going for the authentication only.
> What's the real gain in doing Kerberos encryption over SSL encryption?
> Doesn't Java come with SSL support anyway these days?
>
>
>> My main hesitation between SASL and GSSAPI is that the
>> Windows equivalent APIs for SASL have not received the same
>> degree of interoperability testing as SSPI<-->GSSAPI. I
>> don't have a published example to crib from. For general
>> information the relevant calls are at the bottom of
>> <http://msdn.microsoft.com/library/default.asp?url=/
>> library/en-us/secauthn/security/authentication_functions.asp>.
>
> One reason for this could be that they appear to be available only on
> server platforms, and not on cilents, if you look at the
> documentation.
> That said, I have the DLL file and the export functions on my XP
> machine, so it's definitly present there - I'm unsure if it *works* or
> is supported. My registry does indicate that I have the GSSAPI profile
> for SASL, which would be an indication that it should.
>
>
> //Magnus

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