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Attestation to response 0033

Date: Fri Apr 24 2020 - Sat Apr 25 2020 Name: Oskar Thoren (oskarth) Location: Taipei, Taiwan Device: Personal Lenovo Carbon X1 with Fedora 29 Commit Hash: bf852c168676a7afc5dd17b47ff9b8f394aeab8a Challenge URL: https://ppothk.blob.core.windows.net/public/challenge\_0033

Challenge:

`challenge` file contains decompressed points and has a hash:
	daa7c3b5 570966a7 1180db03 c0d76def
	00395cb6 95c90736 d9c7c240 8bc76b33
	bda8ee88 f495b77d 1927a94d 37e67726
	89e7cb8a 1796c863 5c1153fc 6d6b6f42
`challenge` file claims (!!! Must not be blindly trusted) that it was based on the original contribution with a hash:
	527fe68c 16219d86 018de364 fc5701b1
	44fc5b68 eb063c9a 8c4e8405 b35f4561
	b55363df 6d9adf82 8792c7b1 92a595b4
	4aadbea7 cdef918a 11bfe65a 89c9e4a3
Computing and writing your contribution, this could take a while...

Response:

The BLAKE2b hash of `./response` is:
	cd052845 3b0cca20 3956bb23 333473be
	c12c14a8 cb7102ef e437f8d4 07f23463
	6e77e1e7 d44c4176 608ad290 a2d83f48
	78ccb222 c1e7c60b f5a8ab38 542ce634

Time taken:

Not recorded.

Entropy Sources:

Side channel defenses:

No specific precautions taken, but performed in isolated home office.

Postprocessing:

Rebooting the machine.

BEGIN KEYBASE SALTPACK SIGNED MESSAGE. kXR7VktZdyH7rvq v5weRa0zkZQwhpU GHSUzVjrJ2ZgGpu i8HxaNhcg9HFeqJ sLgJ2eOhSUZhu4J fwoubY5sSCPfm0s Qk0BWVRWKeqIiRf NpAwz8NoTk25Fzc rY9t0ihVaqj0921 ybTXTRfmYQjrpdr g4zCFUJh606Jrhd ve5bYry4m78zAng mkZiCQ3PSbg2njH k85252h4rHJzKdx KFrIRQf2DaZB67g D8Ny5YjYBYIR8TL Bgt8CqA7AvWxDnI Z06BQaBD6Jcf4Sq ww8sbRXNiBkPj10 BV09SuK4XfDmh0J HPSilYMWeCEYxtw 8WRqpBSvOY1dBJy c0CMCqxaZ3hVeM7 fJR3EvLYpM2xGL1 cuy7eLMgZBgBdyI 8bDaA2BAAYxiN6J UGvNGkGO6sGefrl 7J7PXfOzdukI3TH 0f7tHlVQAqBuNdc gePK5qYcQTfdXMD SPGGTGg7W9zexJh ExtUw6kBN5z3P5g FL1hdqZOk662TxL flyEKA6BJA0vFGX A2SauCPheUIWyll VevkqGOV2HzTfc4 wttiwp7Weo6ShZU ACXGNZuNAdgEnI2 R292dVHZ4eu3LNz sitBQ0J2ORw0KYR 7PO2DVxZxbjxSqK O60ufbTIylxOwOe fh6m9vdnuHq0nvw PheUIWzYDUDJyUA 5TymGKTXhE44Nqj H8INbruJ8Qe3xNk 4aF3P1HCHrYYkbp 33qiFKjowjOWBi3 Tggb7au2b5vNHrB ECc4fmOhgZw6iyi yfInxChnh69YyU3 Wq60vJc4eBQdrnv Ul1yuP4UlswBcOm w3n2U8UtFoTsWm9 vcSZjneC8jnqxno 4f56zK1m0S2xWFv xSyXCSAxdFBcCPm 4n8XTD8QZejgmtF xbmhsDcawBQGmQX ynVdByiBRaH8NQL VCvCBgdVbg0sSAr ZGXn2pBfHG3zRbp JPGxCGpkiaeXX8c GN69sWFnYomLYmQ OOZBdcwAr5dS0dq 3TT1OBapy5AYNOR qmCJ6m2xm1RE9mw FW4h6mvzH6XsOJS hwVJBHspEL0CQQV IbyiZyPWOrOFHTu fRcyDD0GMp8nMkf 9Ogmvfr7AZOiLrN 11B6fqTnZXY32HZ XKUlhu5EJCFCw1X dtWGlvyoNWZ1xEZ r7qEUnpeOKLmlE5 lVA0DfaxzlQg0Ye lowXkWCNHFdXxd7 cjdibgMtuqNQx69 wX5EoPS3EmdoMJW ehRADKUM75KeDg1 PGRgHZZ3Beb3WK2 liGC7bJ7FzAfHma coDYqVkWYRuYYaV 83dgsL3ecxEL5K4 6KpQ0rrdjV6hV8J 7g3u8qKeRLnuYoT Hc7krY70bDGD2dN eDrlmw2KtHTmaRb RLaEXstMYHo2zlY kOF2XnneNxn6avQ BpZ42i1aXN4A2Dg 6UTJl2IDrUhuHJm MScODjOIghNIK4V bNInnh831Ogsgz8 HHK9iWCmMZ50vjb P6xugdBQ5WqJcH7 anzbR6uCBRgi4Q1 WzPdqHZGeKG9BUZ fQqI6l83vP8FZc8 YHqzrBfPVyhQPrt vtUGgi74DLQOntN yWLWf0gBmVOU67f gpW2BRSZwhUSQmg qbjqdN26w49xqhc DTdG6ljk9JQGWzk WCBfz3hJpUEg1mM rXW9JL14H8AVUNh Ad0wYqoxGyYRce7 dWQSRkkAUaWj22P GuUzgRSg1nNyYV8 VIuFoLDgqQtLRXJ 6TpGZj9jMfFN1fo 59j3OEgiHW8udhl eMIGeT3JfO2PbzN AZytspH5zVmcDsM 453l8t3uPKP7Ia1 mAY008KQ7h2JJzA cUDyYmlPZsK6FUN iu5Cea9ZjP6aupb FzN7s0Rqm2qrtUA 3a0F5nTC4L1kbi1 p9tLX63GmJseroJ V1OYQBRkRdi1WKR 5cPN3r7zCGR3bfK 0hZGQgoJfW0OSGF OcN6RYYJUBbWgAq V1wPEMkp0Whom8p ZfWtyB58ECnALM6 O37bzQ7Wg7xeY1G GN8EHKoN9YvazAX I0Xk6Ocvt7jTFRq pbcHteVw47ykBya HISlXQcx8u3EdUQ 2NXsN9FmBk9RN8m X07Mu3t64VhBSZV mNHkrg1zREmDAla gGwD8iv6DRNMz27 uGiAq6hgqRR4A09 AJLvtZUnzIlqgDP IIgjzCs. END KEYBASE SALTPACK SIGNED MESSAGE.
@oskarth
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oskarth commented May 6, 2020

  1. Verify signature:
    > keybase verify -i oskarth_attestation.md.sig

  2. Keybase account https://keybase.io/oskarth (a bit empty as I had to reset it due to old/lost PGP key; verified Twitter and GH account)

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