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<H1>[zapps-wg] Attestation no. 9 (Powers of Tau)</H1>
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<B>Sean Bowe</B>
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<A HREF="mailto:zapps-wg%40lists.zfnd.org?Subject=Re%3A%20%5Bzapps-wg%5D%20Attestation%20no.%209%20%28Powers%20of%20Tau%29&In-Reply-To=%3CCAKazn3%3DpFR9ec_ra1AJgQKcOhCD0wPfDB28X78CuJSU8BqmeBQ%40mail.gmail.com%3E"
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TITLE="[zapps-wg] Attestation no. 9 (Powers of Tau)">sean at z.cash
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<I>Sat Nov 18 22:59:01 EST 2017</I>
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<PRE>Thank you! It's always good to have witnesses of the process.
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Here's the full roster of participants this week. More volunteers are
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welcome, just send a request to the mailing list!
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Michael Dixon (Sunday) -- disclosure: a personal friend of mine! :)
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Adrian (Sunday)
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[CAN'T SAY]
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Gabor
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Alyssa (Tuesday)
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[CAN'T SAY]
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Adam Nagel (This week sometime)
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Wei Tang (This week sometime)
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Sean
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On Sat, Nov 18, 2017 at 8:46 PM, Hackett, Robert - News Group
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<robert.hackett--- via zapps-wg <<A HREF="/mailman/listinfo/zapps-wg">zapps-wg at lists.z.cash.foundation</A>>
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wrote:
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><i> -----BEGIN PGP SIGNED MESSAGE-----
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</I>><i> Hash: SHA512
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</I>><i>
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</I>><i> Powers of Tau Operational Write-up
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</I>><i> =============================
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</I>><i>
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</I>><i> Round: 9
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</I>><i>
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</I>><i> Date: 2017-11-18
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</I>><i>
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</I>><i> Name: Robert Hackett
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</I>><i>
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</I>><i> Location: New York, NY
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</I>><i>
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</I>><i> Response (blake2b):
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</I>><i> 2af8b7aadedc27d194a28cb67729f8cab0095a48a8406c071f097639d852c4917ecf213194df2115dd0a294b9c114711237f041c37987023dd8c9f4bc42991d9
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</I>><i>
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</I>><i> Procedure
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</I>><i> =================
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</I>><i>
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</I>><i> I downloaded the challenge file from an Amazon S3 bucket set up by Sean
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</I>><i> Bowe. I computed a response locally using rustc 1.21.0 on a non-air-gapped
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</I>><i> MacBook Pro from mid-2012 running macOS High Sierra. I uploaded the response
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</I>><i> file to the same Amazon S3 bucket.
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</I>><i>
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</I>><i> Side channel defenses
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</I>><i> =================
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</I>><i>
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</I>><i> Entropy source: A literary excerpt of undisclosed provenance.
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</I>><i>
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</I>><i> Physical/electronic monitoring: All steps performed from the comfort of my
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</I>><i> living room. I played aloud the new Spoon album Hot Thoughts on a separate
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</I>><i> laptop while it computed.
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</I>><i>
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</I>><i> I have no intention to destroy the compute node.
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</I>><i>
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</I>><i> Robert Hackett
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</I>><i> Staff writer | Fortune
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</I>><i> @rhhackett
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</I>><i> -----BEGIN PGP SIGNATURE-----
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</I>><i> Version: Keybase OpenPGP v2.0.76
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</I>><i> Comment: <A HREF="https://keybase.io/crypto">https://keybase.io/crypto</A>
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</I>><i>
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</I>><i> wsBcBAABCgAGBQJaEM2sAAoJEAoqnglK+Y5XZaYH/0yjGcKKIwQWkUDIMIlb2isy
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</I>><i> lvAwIiaEFUcDCTcYKiFLgTCTOM2k1Egsc2jlwOF+eHiitzbiIgSYhQt8NRHfIjHQ
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</I>><i> br+al+KDKE0JGbkJjv1TOHhZzzAzFrV+tv8j7V0ZXRBiOEfDEN4dOMrLR4lUEyfI
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</I>><i> cZ3CWKdN2QgyH0J7ElkVwPjRZgkIgDblj6TSsONfstvpdEzG5vulP3RHSAr/VyYo
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</I>><i> qdYCoY/NXow/xzuhT7NmsPgLBxgrDRuJukW8frUvfgwLTudfaP+8vyw5xmwPb25x
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</I>><i> tRGL2V+lex/9lQbckT1VHIdL7RFvWV/2NteoxyP/DwKYEtFY5VvoF8rY8tS/kbg=
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</I>><i> =j5Mm
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</I>><i> -----END PGP SIGNATURE-----
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</I>
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</PRE>
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