51 lines
1.8 KiB
Plaintext
51 lines
1.8 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: 16 March 2018
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Notes:
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This is my second participation.
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* Hardware is a Rock64 single board computer that has been purchased online
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this week. I never connected it to any network.
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* OS was a somewhat older ayufan Debian Jessie minimal distribution
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obtained from
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https://github.com/ayufan-rock64/linux-build/releases/tag/0.5.15.
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c9e8f3f7304cab569ab5c0be9fd72897eb76103d2fb8089cf64b2239fa740262
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jessie-minimal-rock64-0.5.15-136-arm64.img.xz
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* Compute binary was compiled on another ARM64 device. The binary
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sha256sum is
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7af00728c651f6c0fe77eb8863dd9638f72232b9aaaf8facb5676999111ed7c9. The
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binary was archived for future research.
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* The boot drive was on an SD card. The Jessie distribution was downloaded
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and imaged on the SD card and then archived.
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* The challenge was copied to the device using an sdcard connected through
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a Transcend SD card adapter
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* Additional entropy was injected into /dev/random via keyboard mashing and
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dice throws with `stty -echo`
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* The device was on a UPS which was disconnected from AC throughout the
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computation
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* The device was connected to a display and keyboard during the computation
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* No swap was configured
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The BLAKE2b hash is:
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2917a39f a4dc45d9 61a8e72c 4e2e20e5
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f842c6a8 876d91f3 167aa41b ed2c8251
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dca1077d 9903ec2d 313bfcef 8808a425
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ccabe63c 4adb91e7 9d3e624f dfb7a6ac
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-----BEGIN PGP SIGNATURE-----
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iQEcBAEBCAAGBQJasTa9AAoJEOOqsosn9c9KXo8IALPnFUHAvy/T3S2xxXnAuOJX
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gvdllRznB/vti2HId6IqBX4OLJ1sNNNZMgSODA2VOWW45roVtaiD+zLe7evDmT3B
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zF40DszsaMlO62sMjqIDkSOo67NC7qbYDVVcpdcddcMJsLcelhyTf8onCXdcIRJL
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qEBvFmDUzqRYqCeViK8g5zce+z3/dazHR8hp7CE2wDvZbRJYxEJ4XwzWimFAYSw2
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LoohNWXA2lB7CbIpxQM0mO7Q8yv0Gxi0pdUE6DfiP8RECZpUps7tOJrEgLebIQRY
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RKAbYM4HLlXaNyMZOoUfyVrBUrs6do1C8QlgkTClo1+EnDS7VYOu3tsaSqD4qdI=
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=Y1Hd
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-----END PGP SIGNATURE-----
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