[zapps-wg] Powers of Tau Attestation

[Bastien Teinturier]

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Powers of Tau Attestation
================================

Date: 2018-1-18
Name: Bastien Teinturier
Location: Paris, France

Response hash:
e4dafd1b 0fa438a2 b313d66c c9566a0a
be6d7abe 76252eeb 7d294028 770f830d
e8670f14 5ed8c8af 4e5c3476 f591d0c7
bfd58ddd 36dd7c4d 311d1358 420d551f

Posted on Github:
https://gist.github.com/t-bast/7cddb36d8f583e48f60c3cc76aa679ed

Process
================================

Dell Precision Tower 3420
UBUNTU 14.04.5 Desktop (Trusty)
Rust v1.23.0 (766bd11c8 2018-01-01)
powersoftau (github.com/ebfull/powersoftau commit
d47a1d3d1f007063cbcc35f1ab902601a8b3bd91)
VirtualBox 5.2.6
Kali Linux 64-bit 2017.3 live run

At first I wanted to make a Rump unikernel to run this directly on Xen,
QEMU or KVM, but I didn't take enough time to prepare.
But I think it could be a fun experiment for another participant if someone
is interested.

So instead I did this on an Ubuntu desktop.
I created a Kali Linux VM in VirtualBox that I booted in "live run" mode.
I didn't share volumes between the VM and the host.
I installed the rust toolchain on it and built the github repository.

Then I turned the network card off, wrapped the desktop tower in tin foil
and ran the computation.
I left a wireshark running on the host OS and saw only failing legit DNS
and ICMP packets.
At the end of the computation, I put the network back on to upload the
response while monitoring wireshark traffic.
I didn't notice anything unusual, so once the file was uploaded I turned
the network card off again and deleted the VM.
I turned off the PC, unplugged all cables to let it discharge and rebooted.

I would have loved to destroy my PC Mr Robot style, but I really do need it
:).


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[image: stratumn-logo.jpg]


Bastien Teinturier

Senior Software Engineer

Stratumn SAS, 1 bis Cité Paradis, 75010 Paris, France

+33 6 28 57 71 59 • bastien at stratumn.com • stratumn.com
<https://stratumn.com/careers>

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