Logs for jdev

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[05:25:56] <rick> Hello all, SASLs "response" value is kicking my butt. Anyone care to look at some bad C to see where I'm going wrong?
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[05:27:10] <rick> http://codepad.org/BF0J0aN9
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[06:22:57] <dwd> rick, If at all possible, do not write yet another implementation of DIGEST-MD5, and SASL in general.
[06:23:22] <dwd> rick, If you're using C, why not use either Cyrus SASL or GNU SASL to do it for you?
[06:23:59] <johnny> whoo.. dwd .. !
[06:24:08] <johnny> /me claps for dwd
[06:24:17] <rick> I would have to say I'm a masochist
[06:24:51] <rick> and a learning endeavor, and now it has beaten me for so long I have to understand it
[06:25:22] <johnny> don't inflict your masochism on the rest of the xmpp community then..
[06:25:31] <johnny> or any community ..
[06:25:47] <johnny> we have enough trouble with the sasl libs we have already
[06:25:50] <dwd> rick, The lesson to learn is that DIGEST-MD5 is moving to historic as soon as practical, and you have discovered why.
[06:26:08] <rick> I see
[06:26:09] <dwd> johnny, Right. And that includes my Python one. :-)
[06:26:32] <johnny> /me wags his finger at dwd
[06:27:19] <dwd> rick, Really - Chris Newman, who wrote it, wants to ditch it. Alexey Melnikov, who maintains it, feels the same. There's more people want to kill DIGEST than want to kill CRAM, which is really quite amusing. :-)
[06:27:41] <rick> Ha - I can see why
[06:28:25] <dwd> rick, FWIW, things you've missed out include the Evil Transcoding Rule.
[06:29:01] <rick> for the hex?
[06:29:13] <dwd> rick, And I note you've not yet written the Violently Unpleasant Parser.
[06:29:21] <dwd> rick, No, for the username, password, and realm.
[06:29:42] <rick> Aye - I read the RFC wrong?
[06:29:45] <dwd> rick, At one time, the entire XMPP community had missed that out. :-)
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[06:30:00] <dwd> rick, And that includes me, most embarrassingly.
[06:30:29] <rick> It happens to the best of us. ;)
[06:31:00] <dwd> Okay, so nc should be "00000001", unless you're going to do fast-reauth.
[06:32:04] <rick> Missing one '0'?
[06:32:11] <dwd> Whoops.
[06:32:16] <dwd> No, I mistyped.
[06:32:24] <rick> Ok
[06:32:25] <dwd> It's 8 digits of hex.
[06:32:30] <rick> got it
[06:35:24] <rick> Oh crap - are you talking about the UTF-8 transcoding?
[06:37:07] <dwd> rick, Yeah. Won't make any difference unless you have anything non-ASCII, though.
[06:38:39] <rick> Ah ok.
[06:38:56] <dwd> I think your problem is likely to be the way you're constructing A1.
[06:39:22] <dwd> Specifically, you're using sprintf to copy in a binary hash value.
[06:40:13] <rick> I'll buy that =D
[06:41:49] <rick> That would be about the only thing I did not change
[06:42:20] <dwd> BTW, once you've done this, try doing SCRAM. I'd be curious how you find it. DIGEST took me a couple of days to get to the basics of login, and more to the point where it was doing fast reauth and integrity. SCRAM took me a couple of hours.
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[06:43:43] <rick> Sure thing
[06:45:20] <rick> I really appreciate the help - that sprintf blunder looks like a good lead but I've got to get some rest
[06:47:04] <dwd> NP. I should get some breakfast. (And for the kids, too)
[06:51:01] <Tobias> dwd: yup, SCRAM implemented much faster than DIGEST, considering the incremental interop improvement for DIGEST over several months :)
[07:19:45] <dwd> Tobias, On that basis, DIGEST in Cyrus took about 20 years. :-)
[07:20:24] <Tobias> dwd: and they even did their best to make interop for other libs harder :)
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[15:40:40] <darkrain> mmm, SCRAM
[15:41:10] <MattJ> Don't make me hungry
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[15:41:22] <Tobias> you mean EssCRAM? :)
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[15:41:38] <darkrain> or SCRAMbled Eggs
[15:42:10] <Tobias> that reminds me of a nice email i got with a list of error cases my scram implementation doesn't cover yet :)
[16:12:41] <Zash> .
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