Thank you! Another fun attestation. :)
On Wed, Jan 17, 2018 at 7:47 PM, Ryan Close via zapps-wg
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> Powers of Tau Attestation
> Round: 38
> Date: 2018-1-17
> Name: Ryan Close
> Location: Florida, US
> (tweeted: https://twitter.com/closerm/status/953816452997500929 )
> UBUNTU 16.04.3 Desktop (x2)
> Rust v1.23.0 (766bd11c8 2018-01-01)
> powersoftau (github.com/ebfull/powersoftau commit
> I began by installing ubuntu-16.04.3-desktop-amd64.iso to a brand new
> formatted USB thumbdrive. The drive was encrypted (cryptsetup).
> I booted from this drive in VirtualBox, allowing me to update the OS,
> install the rust toolchain, and clone the needed git repository.
> The VM was shutdown, and the thumbdrive was removed to be used with an
> offline machine (no wifi, disconnected ethernet) that has no other physical
> The above was performed twice, and moved to two seperate offline machines.
> Prior to attaching the Ubuntu OS thumbdrives to either stand-alone machine,
> each machines was booted with a live image and memtest was run.
> The provided challenge file was downloaded and placed on a second new and
> newly formatted thumbdrive and moved to the disconnected computer(s).
> For each compute node, extra entropy was introduced by letting my kids type
> at the keyboard until they felt good and satisfied, or until one of them
> accidently hit [enter].
> When complete, each node was verified (via verify_transform), results copied
> to the thumbdrive. Dice (and kids) were then used to choose which payload to
> report, and the result was uploaded.
> All 3 thumbdrives have since been securely erased, reformatted, and
> intermixed with a stash of several other similar and empty drives.
> Driveless stand-alone machines have since been booted and memtest run, and
> will eventually be brought back onto the network.
> Side Note
> Attempts were made to use additional hardware, OS, and software
> Raspberry Pi3 nodes were tested to see if they could be used, but do not
> have enough RAM to complete the compute job.
> PINE64 nodes were tested to see if they could be used, and while they faired
> much better than the Raspberry Pi's, they ultimately failed to complete the
> compute job aswell.
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> Comment: https://keybase.io/crypto
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