45 lines
1.6 KiB
Plaintext
45 lines
1.6 KiB
Plaintext
-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA256
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# Powers of Tau Attestation
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Author: devrandom
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Date: 12 March 2018
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Notes:
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* Hardware is an Intel laptop that has not been powered up in four years
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and has never been connected to a network after it was purchased. CPU was
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a Celeron 1007U. Wireless card was removed.
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* OS was a clean Ubuntu 14.04
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* Compute binary was created with a deterministic Gitian build, with report
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here:
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https://github.com/devrandom/golang-powersoftau/commit/241da6dac6166a68ff20ef7abbb0f8231a626a3c.
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The binary sha256sum is
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c28894877c8948960eaefa0d8f35da6c911031980672b983f361711a7dcb1ec8. The
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binary was archived for future research.
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* A USB drive was purchased in person and used to transfer the binary and
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challenge into the laptop and the response out of the laptop.
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* Additional entropy was injected into /dev/random via keyboard mashing and
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dice throws
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* The laptop was disconnected from AC throughout the computation
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* The boot drive was destroyed
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The BLAKE2b hash is:
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a449bc6e d77cbc7b 2d6aa91b ac4ddc6e
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e398a6e8 6c2b08dd 529b796b f7fcfb7c
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ba5cfb94 a394731d e1a188ec bdf6dcaf
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8444f688 975973ca 079b94f2 e0e7def0
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-----BEGIN PGP SIGNATURE-----
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iQEcBAEBCAAGBQJaqB0pAAoJEOOqsosn9c9K66MH/j79TuEGpSdS5weTRxKHVMHJ
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NMLEGdnFT6BVEIJrIbzC1eQFJHWQhROokTn0mrjaV3lsGSWXJ5D91/rYE6boVsrN
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o501eDQui1nSnkIICrQY3aDnzYIT98crtGPDBD29e8vTRqjGnWAay1ovjIA5Vr0V
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q3nxfrp2mqdk9kYFHDfLvjfeEJRkOujx1TrwRRqX2/0OTLnAnPgrqUncKaiojH0v
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IlcbYAoBe2VEboiwN1QDMV0AuYzNCfrTXsof0lU6g7sZwy49MLCQNsUmxW2bl3jz
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AzlCjcBG6EyLyh5T6J+FylEYrplcPdlZLmtcGNsdoM1VeohpL3f7ZqALUlCJjQU=
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=IvmM
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-----END PGP SIGNATURE-----
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