Thanks! Accepted your contribution. :)
On Mon, Dec 18, 2017 at 2:33 PM, Gareth Davies via zapps-wg <zapps...@lists.z.cash.foundation> wrote: > Assuming everything went well I’ve also opened a PR on the > powersoftau-attestations repo to add my contribution. > > Cheers, > > Gareth > > > On December 18, 2017 at 11:58:35 AM, Gareth Davies (he...@garethtdavies.com) > wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > Powers of Tau Operational Write-up > ================================= > Round: 26 > Date: 2017-12-18 > Name: Gareth Davies > Location: Victoria, BC > > Response (BLAKE2b): > f2fe2ed9 625ad86c ee7d63cf 779d6a48 > 7b47bdd5 d1f33051 598de29c 90642eb9 > 4422ab58 4f541020 3f949f86 c56a5523 > 84d3d450 7e9e7e59 d2ec8a57 ca472bc4 > > Procedure > ================================= > > I performed the challenge concurrently on two separate computers and > following the roll of a dice chose to upload one of them. Machine 1 was a > 2017-built Hackintosh running macOS High Sierra 10.13.2. Machine 2 was > running Windows 10 Home and has been in my possession for several years. > > I performed a similar approach on both machines, firstly downloading rust. > On the Hackintosh this was achieved via Homebrew and on the Windows machine > by downloading directly from rust-lang.org. Both machines were running the > latest stable release of 1.22.1. On running the challenge on the Windows > machine I encounter a link.exe error which necessitated the additional > downloading of Visual Studio to fix and successfully run the challenge. > > I downloaded the challenge file from the S3 link provided by Sean Bowe and > used git to clone the powersoftau repo with commit > d47a1d3d1f007063cbcc35f1ab902601a8b3bd91. > > Side Channel Defences > ================================= > > Entropy sources: For each machine, I chose a book from my library and > randomly selected words from each. My typing is terrible, so a number were > misspelt which I did not correct. In addition, I then performed an > obligatory “mashing of the keyboard” for added randomness. > > Physical/electronic monitoring: I didn’t perform anything specific in this > regard albeit the challenge was performed concurrently on two machines. Both > computers were located in my basement and watched throughout by myself and > dog who, albeit slept through the majority of the process, did not raise any > alarms regarding physical intruders. > > Postprocessing > ================================= > > As above once both challenges were complete I rolled a dice (assigning odd > numbers to one computer and even to another) and uploaded the corresponding > chosen response. I have no intention to destroy either machine, but both > machines were shut down following completion of the challenge. > > Gareth Davies > garethtdavies.com > -----BEGIN PGP SIGNATURE----- > Version: Keybase OpenPGP v2.0.76 > Comment: https://keybase.io/crypto > > wsFcBAABCgAGBQJaOB1iAAoJEASLWWNWft/YvIYP/jXv4UTi1G13St1Nqfmy9OgH > TbClBrDA73i5VzM5XAdf1moOh68m4hFMK6+i2DPdqLrqs+FxTjRs1E2ILBQXhvNe > uOes4ykwH6noLmXeiWL9vsmcrPVJbVwA3T2vPubHY59YCg8cMV3y2B24mrvLZc9t > bpPLmTDPBPlAmlJWYDn2gHa87ieRNYMU/eoyZVdE6hSuvp7QxPFr/lg01TYAqOWi > Dx5T6BWHnFqPlvrMbn+n/8vZGx3TWQ0YGdpA/vOff/yT4noE9ELNqpYkCGi/fsLZ > Kf1nq7lFhUnoY70/jaXuTbjdcBw55WHnbScmW8oKCkQeCWm5F8vkeaNKoBPNKmUH > B44pqlzq8MIAbKU3rd3TWOPOXa2Ju8enCCQpW7b7ArUFbBIB8xbVxDD7Kz9M7053 > 84fXuBufFWbiAfB7Zm11aRvEwAqj7glkOnoKuRKyAhnUZslbiAuj6UBh/yuE6BnA > EhGHGhnkFbwDoPHeNmklQi9bz+nzoz5r+2D7dmeWEfQnCFnOgExUKj1h5kxi+2vs > T/GzNbndXFoPVUN6K29W3ayZ8UZt1XS6lwxzxMAtTmv8oUhIdeS1NZg4rOURvMPY > oJuHBPHW/bvilsk6UlAtZCjY2F7oy3ojK+0YDa7kR5IQZd2pk7+nzZgdySfW+l/u > z9RX51rQz16KiA9aGgnB > =OfdW > -----END PGP SIGNATURE----- > > > On December 16, 2017 at 9:40:44 PM, Sean Bowe (s...@z.cash) wrote: > > Sounds great! I'll ping you Monday. > > Sean > > On Fri, Dec 15, 2017 at 6:50 PM, Gareth Davies via zapps-wg > <zapps...@lists.z.cash.foundation> wrote: >> Hi, >> >> I would like to join the MPC ceremony. I am available to participate on >> any >> day during the next week depending on when it would be required. >> >> Cheers, >> >> Gareth
