[OTR-dev] 4.0.0-rc3 ready to roll. Please try it out!

Greg Troxel gdt at ir.bbn.com
Sun Sep 2 07:58:01 EDT 2012

Ian Goldberg <ian at cypherpunks.ca> writes:

> You can paste the message into the otr_parse program that comes with
> libotr.  But also please send them to me in non-list email.  The message
> seny when you click the button should say ?OTRv23?, the reply should
> start with ?OTR:AAMC, (C for "commit") the reply to that should start
> with ?OTR:AAMK (K for "key"), the reply to that should start with
> ?OTR:AAMR (R for "reveal"), and the last message in the AKE starts with
> ?OTR:AAMS (S for "signature").  The "M" in each case indicates the OTRv3
> protocol.

I saw init, C, K, R, and I think the originator objected to the R
message.  There was no S message.

> Something's jogging my memory.  There was one (beta?) version of
> libgcrypt that didn't correctly handle counter-mode encryption of
> messages that weren't a multiple of the block size.  When used with
> libotr, it would give exactly the error you reported.  But it should
> give the same error with the old libotr (3.2.x), so that doesn't seem
> like it's the right explanation.
> http://lists.cypherpunks.ca/pipermail/otr-dev/2011-April/001168.html

pkgsrc (and thus my system) has 1.5.0.  There are some pkgsrc patches,
but they're about other things.  And I did not rebuild libgcrypt or
pidgin, just libotr and pidgin-otr.

(I sent you the actual bits off-list.)

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