109 lines
3.8 KiB
Plaintext
109 lines
3.8 KiB
Plaintext
-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA512
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#######################################################
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Powers of Tau attestation
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disturbedsquirrel
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##############
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## General sidechannel defenses:
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# Contacted Sean Bowe using Whonix who forwarded my message to Jason Davies.
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# Always communicated using Tor to prevent an adversary from obtaining my geographical location prior to the computation.
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# Computation was done in an empty room in my home's basement. All unnecessary electronic devices were kept outside the ceremony room (including my phone which was additionally wrapped in tinfoil). I was the only person in the house at the time. Necessary Ethernet connections were made via 50 m cable to my server room upstairs. I was in the ceremony room the whole time.
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## Preparation a few days prior to computation day:
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# Purchased a used desktop PC with cash from a stranger and removed the HDD. No Wifi equipment was present at the machine.
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# Drove to a friend of mine and downloaded a fresh Ubuntu 17.04 x64 DVD image via his machine running Linux Mint 17.04 as OS.
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# Verified the image via the hash provided on the Ubuntu homepage and wrote it to a raw DVD.
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# At home I booted up the Powers of Tau computation machine with the Ubuntu live DVD and built the compute binary which was then saved on a newly purchased USB drive. The USB drive was put into a safe.
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## Procedure on computation day:
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# Booted a second machine (notebook) with the Ubuntu live DVD, downloaded and installed Tor Browser and retrieved the challenge file via Tor.
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# Copied the challenge file onto the USB drive which already contained the compute binary.
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# Powered down the notebook and booted the Powers of Tau computation machine with the same Ubuntu live DVD.
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# On computation machine first rust was installed and then Ethernet removed.
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# Plugged in USB drive and started computation via Terminal.
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## Computation ceremony:
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# Entropy was generated by entering a random string in addition to 100 numbers generated by a roulette wheel.
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# Computation took about one and a half hours.
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##############
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The BLAKE2b hash of `./response` is:
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bd44847d 072914a8 3de15761 45237532
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8042e25b 8484a7f5 1742c003 8e05a217
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5a1ea4c3 f6b50f9b 394babda 70fff55f
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1ee30798 d8cd5590 7178f725 a1a5ebfb
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##############
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## Postprocessing:
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# Saved the BLAKE2b hash on the USB drive and powered down the computation machine.
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# Booted notebook again with Ubuntu live DVD, downloaded and installed Tor Browser.
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# Plugged in the USB drive containing the response file.
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# Uploaded response file via Tor to AWS machine.
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# Wrote this report on a second notebook which was used to initially contact Sean Bowe while the response file was uploading on the first notebook which was used in the ceremony.
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# Mailed this report to Jason Davies
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# Nuked the USB drive via DBAN.
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#######################################################
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-----BEGIN PGP SIGNATURE-----
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TqS7iAn1q/f0+HibO21L
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=B/oI
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-----END PGP SIGNATURE----- |