Text 228, 70 rader
Skriven 2005-06-02 20:10:28 av Michiel Broek (2:280/2802)
    Kommentar till text 224 av Michael Dukelsky (2:5020/1042)
Ärende: Re: ZLIB compression
============================
Hi Michael,

Michael Dukelsky wrote to Michiel Broek:
MD> Hello Michiel,
MD> 
MD> Wednesday June 01 2005, Michiel Broek wrote to Michael Dukelsky:
MD> 
MD>  MD>  MK>> Sounds like a good plan.  Also there seems to be a problem
MD>  MD>  MK>> with md5 encrypted passwords with Radius or perhaps they
MD>  MD>  MK>> don't have that ability.
MD>  MD>>
MD>  MD>> Hm. Here is an extract from my binkd.log:
MD>  MD>>
MD>  MD>> + 31 May 00:02:47 [212] session with ...
MD>  MD>> - 31 May 00:02:48 [212] OPT
MD>  MD>> CRAM-MD5-b9d288fcc3c8acd47f8905baaf3638a2 + 31 May 00:02:48 [212]
MD>  MD>> Remote requests MD mode - 31 May 00:02:48 [212] OPT PLZ CHT CRYPT
MD>  MD>> + 31 May 00:02:48 [212] Remote requests CRYPT mode [...] - 31 May
MD>  MD>> 00:02:48 [212] NDL MO,CM,IBN,ITN,IFC,IFT,IHT,ISE,IMI,INT - 31 May
MD>  MD>> 00:02:48 [212] TIME Mon, 30 May 2005 16:03:05 -0400 - 31 May
MD>  MD>> 00:02:48 [212] VER Taurus/5.000/01.05.2005,17:15(Spring)/Win32
MD>  MD>> binkp/1.1 [...] + 31 May 00:02:48 [212] pwd protected session
MD>  MD>> (MD5) - 31 May 00:02:48 [212] session in CRYPT mode
MD>  MD>>
MD>  MD>> So Taurus does have the ability. Cannot say anything about Radius
MD>  MD>> since I have no links with it.
MD> 
MD>  MB> That's CRYPT not GZ or PLZ mode.
MD> 
MD> The question was about encryption.

And a part of the threat went into compression, but ala.

MD>  MB> So there are three methods, two compresion methods and one crypt
MD>  MB> method.
MD> 
MD> In fact BinkD can compress not only with the help of zlib (OPT GZ) but can 

MD> also
MD> use bz2 (OPT BZ2).

I studied bzip2 too for use between mailers, but even the maintainers of
zlib/bzlib say it's best not to use bzip2 compression, at least not in the
way we implemented OPT PLZ. Bzip2 needs large chunks of data to perform
good. With OPT BZ2 the problem seems less because compression is done over
whole files and at the end with large files bzip2 will win in compression
ratio. So for the PLZ method, making some sort of bz2 variation will not be
made because it would not be effective.

MD> 
MD>  MB> Or doesn't crypt add compresion and does it only crypt the
MD>  MB> datastream?
MD> 
MD> As far as I understand (I am not a BinkD developer) encryption and 
MD> compression
MD> are independent in BinkD.

That seems logical.



    Greetings, Michiel Broek

Email:   mbse@mbse.dds.nl
Fidonet: Michiel Broek at 2:280/2802

... But why spent $2000.00 just to run Windows

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