Okay, I finally got around to putting the ClosedSRS VB6 source onto
SourceForge. Take a look at the CSControl_VB6Code file at
http://sourceforge.net/project/showfiles.php?group_id=82278. Specifically,
pay attention to the SRSComm class. This is where all encrypted
communication occurs. (It actually just calls functions in the C++ SRSHelp
DLL. All socket/crypto operations take place within this DLL, as it was
easier to do it in VC back then.)
If I were writting the control in Windows nowadays, I'd do the whole thing
in .Net. The trickiest part would be getting the crypto working. Once this
part is done, its just a matter of slogging around with all the SRS
commands.
Have fun..
----- Original Message -----
From: "Lynn W. Taylor" <Lynn@BusCom.net>
To: <dev-list@opensrs.org>
Sent: Sunday, November 23, 2003 4:52 PM
Subject: Re: ASP.NET DEVELOPRS error: 405 Method Not Allowed
I haven't spent a whole bunch of time on this, but maybe this will help....
I don't think the problem is Blowfish, I think it is CBC.
Blowfish is a block cypher, and OpenSRS needs a streaming cypher. CBC is a
technique to turn block cyphers into streaming cyphers.
>From what I've read, there appears to be two flavors of CBC: the "real
world standard" one, and the one implemented in the PERL Crypt:CBC library.
There are a couple of other differences, but there are third-party documents
that cover them. As far as I remember, they had to do with how keys were
generated for the cypher.
-- Lynn
On Sun, 23 Nov 2003 18:23:43 -0600, inbox@fpgatools.com wrote:
> I feel the same way. :(
>
> The really said part is that Blowfish was released as an
> open standard and so it's trivial to get your hands on
> source for virtually any language / platform. Tucows
> really needs to write up and provide a nice clean white
> paper on their unique Blowfish "tweaks" as well as provide
> test vectors using a trivial key so you can test your
> code.
>
>
>>On Sun, 23 Nov 2003 12:06:28 -0800,
>>feedback@webdivisor.com wrote:
>> Well I looked at the ClosedSRS project on
>>sourceforge.net. It looks like
>> all the main connection is done through the .dll file
>>and does not help out
>> in any way. I would not want to code around a DLL that
>>someone else made,
>> it would cause alot of headaches in the future.
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