Would that be the file powersoftau-master/src/bin/compute.rs? All data on disk was preserved, except for the challenge file resulting from `cargo run --release --bin new`.
El 28/11/17 a las 13:41, Devrandom escribió: > Curious if you saved your compute binary? > > On Mon, Nov 27, 2017 at 9:32 PM > Neal Conner via zapps-wg <zapps...@lists.z.cash.foundation> wrote: > > Powers of Tau Operational Write-up > ================================== > > Round: 18 > Date: 2017-11-25 > Name: Neal Jayu > Location: Boston, Massachusetts, New England > > Hashes > ====== > > challenge: > c2d62e5fdff19023554f21d19b86490470ac9a2860094d10397c666f9c6fc652 > > response (blake2b & sha256): > ef15cb99 7c331928 855dd7ce 42ade214 > 3033be18 5be45f3e eac5b95b b12777db > 582992b0 a862c92a 1cba4e95 044c52f5 > de857776 31462a0d c51d7a4f 846b9d7e > 122efac62a11da143dca24e5facd33cf61ff2597e65aa4ff09aae89fe838c045 > > powersoftau-master.zip: > 3a6db71b0bb9d39c3f58f2d51388560ab92b139d5066eb9b66c30580262309d7147289fb598926a5d99779935b30411b075504b2ebd0488335c6e9df5bf80e00 > > rust-1.22.1-x86_64-unknown-linux-gnu.tar.gz: > 0fd3776a7fd38cbcbffe8a257836f9f5c0d04762af3107b93b8860b98b6d92b0912b4668c973d9f647a7a74b4855a5680cab042c3389c6158efee1b4640a60de > > debian-9.2.1-amd64-DVD-1.iso: > b7afe686f36f9e26ac0888ca341572d2bf1fbe70c50acb6af822cf9e04318e5a3f974ebdfd91e1706758f0f2aa1a332462f3d74ecdaf69f0061849ac595e67df > > Procedure > ========= > > After downloading the aforementioned files to my daily Linux machine, I > checked each's sha256/512 sum against published values, or in the case > of the Rust standalone, recorded its sha512 sum and verified its > signature file against the project's PGP key from Keybase. > > I burnt the Powers of Tau zip, Rust standalone installer, Debian ISO, > and Memtest86+ to DVD/CDs; and copied the challenge file to a SanDisk > USB drive. > > On the compute node (see Side Channel Defences below), I booted from the > Debian DVD, installed it to a Samsung USB drive, then booted the machine > from the USB drive. > > Rust and Powers of Tau were copied from CD. Both sums were re-checked on > the compute node. build-essential was installed from the Debian DVD. > > I connected Ethernet to run `cargo run --release --bin new` in order to > download and configure dependencies. Ethernet was removed once complete, > and the resulting challenge file deleted. > > The provided challenge file was copied over and computation began. As > input, I used the results of two minutes of 20-sided dice rolls, > followed by arbitrarily selected words from a book extolling the virtues > of laissez-faire capitalism. > > One complete, a hash of the response file was taken, copied to the > SanDisk USB drive, then uploaded to the AWS bucket via my daily machine. > > Side Channel Defences & Postprocessing > ====================================== > > The compute node was a disused 7-year-old Lenovo Thinkpad T420 borrowed > from a friend without foreknowledge of my intentions for it. > > I removed the hard drive prior to booting the laptop. Although I did not > have permission to remove its radio devices, I activated its hardware > switch which purportedly disabled them. > > Further, during the installation of the Debian instance onto the Samsung > USB drive, I declined to install drivers for the machine's wireless > devices. > > The computation was performed within living quarters with no particular > precautions taken save for watching Voyager at formidable volume and > inaudibly typing the entropy sources. > > After copying the response file and Blake hash to the SanDisk USB drive, > I powered off the laptop and booted into the Memtest86+ CD. I allowed > Memtest to run for two full cycles (about 1.5 hours) then powered off. > > I removed power and battery from the machine and intend to leave it > powered off for the foreseable future. > > Archival > ======== > > The Debian installation media, Powers of Tau repo, Rust toolchain, and > Memtest are on DVD/CDs which I've autographed. > > The Samsung USB drive containing the Debian instance, and SanDisk USB > drive with challenge and response files (and their hashes), are both > LUKS-encrypted. As such, I don't expect these to be tampered with > following the operation. > > I've sealed all five of the above media in a signed and sealed envelope, > which I've locked in a safe to which I alone posses the keys. They are > available to audit upon request. > > > El 25/11/17 a las 15:54, Sean Bowe escribió: > > You're next! :) > > > > Sean > > > > On Sat, Nov 25, 2017 at 1:50 PM, Neal Conner via zapps-wg > > <zapps...@lists.z.cash.foundation> wrote: > >> Hello, > >> > >> Please consider this my request to join the MPC ceremony. > >> > >> I've made the necessary preparations and can compute within 24 hours of > >> receiving the challenge file, including today if a slot is available. > >> > >> Thanks, > >> > >> Neal Conner > >> https://keybase.io/nealjayu > >> > >> >
Description: OpenPGP digital signature