--- Log opened Thu Apr 25 00:00:54 2019
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07:08 < andytoshi> fwiw bulletproof signing is much better on this front (it's an inherently less loopy algorithm that's much easier to strengthen against this)
07:08 < andytoshi> and my code for that is constant-time as far as I'm aware
07:12 < gmaxwell> I thought it might be but I wasn't sure.
07:19 < nsh> 'but it's really hard to justify a lot of anti-sidechannel work without a rig that can actually demonstrate the fixes doing something useful.'
07:19 < nsh> i'm surprised there isn't already a start-up offering these kinds of services
07:20 < nsh> ought to be if there isn't really
07:25 < gmaxwell> There are some tools.
07:25 < gmaxwell> random google result: https://www.mouser.com/new/newae-technology/newae-chipwhisperer-pro-l3-kit/
07:30 < nsh> aye but there's a particular methodology to looking for cache and timing side-channels in cryptographic code. not sure the tools themselves are sufficient to the offering
07:30  * nsh looks
07:31 < nsh> oh okay, that looks cool
07:37 < gmaxwell> ya.... I don't recall the products being as nice as this one last time I looked.
07:38 < gmaxwell> I think that when I was at blockstream I would have just bought this, if it existed then and I was aware of it.
07:38 < gmaxwell> IIRC I found something similarly priced but much more limited, and something else that was absurdly expensive ($80k?)
07:40 < nsh> eep
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--- Log closed Fri Apr 26 00:00:55 2019