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Author: dailylinks

Links for 2011-06-07

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Links for 2011-06-01

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Links for 2011-05-23

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Links for 2011-05-18

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Links for 2011-05-13

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Links for 2011-05-04

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Links for 2011-04-29

  • Online censorship now bordering on the ridiculous in Turkey – Reporters Without Borders : ‘access to websites containing words on the list would in theory be suspended and it would be impossible to create new ones containing them. However, it is not clear how and to what extent the directive will be implemented in practice. The TIB could decide to suppress or block pages for just one blacklisted word. … The list, which borders on the ridiculous, includes words such as “etek” (skirt), “baldiz” (sister-in-law) and “hayvan” (animals). It poses serious problems for access to online information. If words such as “free” and “pic” are censored, countless references to freedom and everyday photos will be eliminated from the Turkish Internet.’ Incredible (via Danny)
    (tags: via:mala repression internet turkey censorship filtering false-positives)

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Links for 2011-04-27

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Links for 2011-04-25

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Links for 2011-04-21

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Links for 2011-04-20

  • demerphq on “perl’s regexps are slow” : His classic response to the Russ Cox DFA-over-NFA regular expressions paper. ‘A general purpose regex engine like that required for perl has to be able to do a lot, and has to balance considerations ranging from memory footprint of a compiled object, construction time, flexibility, rich feature-sets, the ability to accomodate huge character sets, and of course most importantly matching performance. And it turns out that while DFA engines have a very good worst case match time, they dont actually have too many other redeeming features. Construction can be extremely slow, the memory footprint vast, all kinds of trickery is involved to do unicode or capturing properly and they aren’t suitable for patterns with backreferences.’ — Also interesting to note that he mentions an approach I’ve used in several SpamAssassin speedup add-ons, too ;)
    (tags: performance perl regular-expressions perlmonks demerphq regexps dfa nfa state-machines)

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Links for 2011-04-20

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Links for 2011-04-19

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Links for 2011-04-19

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Links for 2011-03-29

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Links for 2011-03-24

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Links for 2011-03-23

  • Detecting Certificate Authority compromises and web browser collusion | The Tor Blog : ‘If I had to make a bet, I’d wager that an attacker was able to issue high value [SSL] certificates, probably by compromising [the USERTRUST SSL certificate authority] in some manner, this was discovered sometime before the revocation date, each certificate was revoked, the vendors notified, the patches were written, and binary builds kicked off – end users are probably still updating and thus many people are vulnerable to the failure that is the CRL and OCSP method for revocation.’ It seems addons.mozilla.org was one of the bogus certs acquired. Major ouch. Thanks to EFF/Tor et al for investigating this — SSL cert revocation is a shambles
    (tags: security ssl tls certificates ca revocation crypto exploits eff tor comodo usertrust)

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Links for 2011-03-14

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Links for 2011-03-03

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Links for 2011-03-02

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Links for 2011-02-28

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Links for 2011-02-16

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