Date: Mon, 27 Mar 2017 21:16:43 +0200 From: Solar Designer <solar@...nwall.com> To: announce@...ts.openwall.com Subject: [openwall-announce] BSidesLjubljana talks "yescrypt: large-scale password hashing" and "Haswell metaprogramming" Hi, I gave two talks at BSidesLjubljana earlier this month. The first one of these, and one planned in advance, is "yescrypt: large-scale password hashing". Here are the slides, as well as a link to the conference website, which in turn links to the talk video: http://www.openwall.com/presentations/BSidesLjubljana2017-Yescrypt-Large-scale-Password-Hashing/ In this talk, I framed the problem of password hash cracking as largely that of cost amortization, and thus the problem of password hashing as coming up with affordably costly and amortization-resistant password hashing schemes. In this context, I described and provided rationale for both scrypt's sequential memory-hard hashing and yescrypt's numerous additions to it. The second talk, which I originally wasn't planning on giving but was asked to on the spot, is a lightning talk entitled "Haswell metaprogramming", now in just 3 slides (originally it was 2 slides I quickly came up with at the event): http://www.openwall.com/presentations/BSidesLjubljana2017-Haswell-Metaprogramming/ This describes a maybe-sometimes-useful obscure programming technique for modern x86-64 CPUs focusing on those built on Intel's Haswell microarchitecture (and probably applying to Broadwell and Skylake equally well). I hope you find some of this useful or at least interesting. Submitting to and speaking at BSidesLjubljana was a pleasure. The organization was flawless. Kudos to the organizers! Alexander
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