Thanks Gustavo! I've entered this into the transcript. Sean
On Mon, Feb 5, 2018 at 7:12 PM, Gustavo Frederico via zapps-wg <zapps...@lists.z.cash.foundation> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Powers of Tau Attestation by Gսѕtavо Frеdегіc೦ > - ---------------------------------------------- > > Date: 5/Feb/2018 > Location: Ottawa, ON, Canada > Main document given to Gսѕtavо with instructions: > https://github.com/ebfull/powersoftau/wiki. > > sha256sum -b challenge > 81e7d56284c57a227841243565baad98aba3fae1165e859027ea03415706c726 *challenge > > Blake2b response file: > > The BLAKE2b hash of `./response` is: > 8abb2666 2df43f23 310b3896 665fb8b0 > a9995403 a5c5c890 c785bbd4 92093c6b > fd553da7 81623379 22184427 5b2c212b > 722c78ca 5d02a204 f248e94e e8e5b00f > > My PGP public key: > https://keys.mailvelope.com/pks/lookup?op=get&search=0xFB442070C0242E80 > > My fingerprint: F3CE E9F3 1BDF 1268 DBF2 32C7 FB44 2070 C024 2E80 > > Actions: > Principle: I didn't want to destroy any hardware because I'm not rich. > > Environment: a small room, where I was alone. > > Preparation: My host computer is a MacBook Pro with macOS 10.13.3. I > installed VirtualBox (www.virtualbox.org). I downloaded a Ubuntu desktop iso > image from https://www.ubuntu.com and I created a VM in VirtualBox. I enabled > "Disk Image Encryption" in the VM. I tured off its Bluetooth adapter. In the > beginning I left the network adapter connected to the host's. After > installing Ubuntu in the VM, I installed curl. > > Other installs in the guest VM (still dependent on network adapter > connected to the host's at this stage): > curl in shell > Rust from https://www.rust-lang.org/ > Powers of Tau source from https://github.com/ebfull/powersoftau > > Ceremonial step: > cargo run --release --bin compute # with network connection on > At the step where the program asks for keyboard input, Gustavo turned > the VM (guest) network connection off and the host connection off also. > > The input may have included counts of letters in words I read today, words > I read today in English and in Russian, and people that I counted today. It > may have included names of people. I also may have played a song by Beethoven > in the keyboard as if it were a piano. And I may have played the fingering of > a Bach violin concerto as if the keyboard were a violin fingerboard. And I > may have typed random keys in the keyboard. > > At the end of the computation (it tooks almost 3 hours), I copied to > clipboard the BLAKE2b hash of the response file. Then I rebooted the VM. > After that, created a volume share between guest and host. I then saved the > response file in the host computer. Then I deleted the VM, including all of > its (encrypted) files. After, around 7 pm UTC-6 I uploaded the response file > to the URL given to me by email ( it began with > https://s3-us-west-2.amazonaws.com/powersoftau/p6RZ ) > > > > > > B̸̡͔̻̬̩̖͚̬͈͙͔̫̩͙̻̉̈̄̌̊͐̄̂̈́̊̾͆͠Ḑ̸̻̣̲̗͇͍͍͍̞̩̖͗̉͊S̸̢̝͕͎̝̘̥̬̲͉̯̣͙͂̐͜ > > > > > > - ---------------------------------------------- > -----BEGIN PGP SIGNATURE----- > > iQIzBAEBCAAdFiEE887p8xvfEmjb8jLH+0QgcMAkLoAFAlp5DvAACgkQ+0QgcMAk > LoDPexAA1JbFpCsgZWq/j1b+Ng7ItKBE2/l8NS0sWiqn4bHBW2oEEOGTUsRAFGCj > HFylW8aDVi+YY7Gene+Gr5EDkbhT0en8lBeSK0qBRNkHN5yrzw0cZJWHNOoofeTZ > SJzodJiFlkq9P9cIO12v1XdRP59VmaAM/4npDpbqrjB76cUG4aEaxwz5OgE4Er3A > WvLs1aGd3le34KROLnrGGOYm1msX9MdFWFS9UEztqTYcMsn9ayz6e6HNPIk4u2Ry > GcOZTdw+RCaqJhA10PkSEsGhoL1JexsksYIapy0i9xOKaqMXMrbYfs3S4ktHY4q6 > aOBMR2yQ6hJ1BQ/LsvkTL27p00UFXr/Vi/ZjwZZtRAP9YFxlrg7NrFIw7Xf+IF6v > a+WFDX5Qt8YQ2gup+pheR15kQViNKrqx3OkpBVzj+D4RSvrbmCerOEYxrw4PJh7F > xSyZ8MOjB5pAdhQ2nt56GjEKa57ID/3UQM+iPrrmurbOlVUs4kSJ2SbX2hq1p2CY > ETgxUM+o9W956wT7Un3khptIUSkLqJoY0KPz6InpI2fdLHSSF2s4OG9ghtiF3uyE > LHaXu/mB2xM/2GI/1K9Z446dSlh6xaL84JDyRXed06F51LstYNgLb0K43ivc1ilq > XYC8ZDgaJbF9BYSYZlsKfrzS+7pNH6M7vh7iuq/jiOOB/DF718k= > =M6yK > -----END PGP SIGNATURE----- >
