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On Jul 16, 2007, at 10:19 PM, Charles Connell wrote:

> Hi all,
>
> You may have noticed that I've been doing a lot a hacking with the
> Cryptography plugin. Encrypted messages can be very large (for an  
> instant
> message). In my testing, I've noticed that when trunk Kopete sends  
> a message
> of more than 25 lines over OSCAR/AIM, it immediately loses  
> connection to the
> server, signs off, and later signs back on again. I have heard the ICQ
> variant of OSCAR has the same issue. As for other protocols, I'm  
> not sure.
>

For ICQ, it's supposedly 436 characters max. For AIM, it's something  
semi-ridiculous for normal messages at like 8000 bytes (not  
characters, bytes, which means 4000 chars  or less for multi-byte  
character sets, like UTF-8)

> I write because Kopete 0.12.3 allows messages of more than 25  
> lines, and
> Kopete trunk can recieve messages of more than 25 lines (all in  
> OSCAR/AIM).
> If the Cryptography plugin is going to work, then whatever was  
> changed in the
> trunk OSCAR implementation about sending long messages needs to be  
> changed
> back.
>

Long messages are split to avoid disconnect problems, or at least,  
that's how it's supposed to work. No telling if there's a bug there  
or not.

> Sorry to bother you all with a question I probably could answer  
> myself, but
> the diff between 3.5 and trunk is 54 thousand lines, so I'm hoping  
> that
> somebody knows better than I do what might have caused this behavioral
> change.
>
> Thanks.
>
> Charles
>

No clue, but it doesn't matter. This should be in the FAQ if it's not  
already. We will not support cryptography over OSCAR. The protocol  
just won't handle it, as you've discovered. Users who wish to use  
cryptography to encrypt their messages are encouraged to use Jabber  
until we've implemented OSCAR's SecureIM.  They may also wish to try  
the OTR plugin that's available for KDE 3.5 releases
- --
Matt


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