Perl 6 - the future is here, just unevenly distributed

IRC log for #darcs, 2015-01-26

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All times shown according to UTC.

Time Nick Message
00:48 Riastradh dolio: CBC padding oracle attacks on ssh: http://www.isg.rhul.ac.uk/~kp/SandPfinal.pdf
00:49 dolio Yeah, I found that last night. The article I linked to didn't mention that at all, though. It just eliminated cbc.
00:52 Riastradh dolio: I don't know a reason to discard any of the >=128-bit MACs.  Neither HMAC-MD5 nor HMAC-SHA1 requires collision resistance and I don't think anyone has ever come anywhere near an attack on them (although there is an unconditional security proof for poly1305, unlike HMAC-*, so chacha20-poly1305 relies on fewer conjectures than aes256ctr with hmac-sha2-256-etm).
00:55 dolio Yeah, I think the author's attitude there was, 'might as well not take any chances.'
01:04 Riastradh Limiting the key exchange methods sounds pretty reasonable to me.  I don't think there's a good reason to reject DH over group 14 with SHA-1 -- it requires only preimage resistance, not collision resistance -- but whatever.  The main practical consequence will mainly be to break compatibility with servers old enough to worry you anyway.
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02:46 Topic for #darcs is now http://darcs.net/ | logs: http://irclog.perlgeek.de/darcs/ | darcs 2.8.5 is out http://darcs.net/Releases/2.8
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