Also attaching an OpenTimestamps receipt. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
# Powers of Tau Attestation Author: devrandom Date: 16 March 2018 Notes: This is my second participation. * Hardware is a Rock64 single board computer that has been purchased online this week. I never connected it to any network. * OS was a somewhat older ayufan Debian Jessie minimal distribution obtained from https://github.com/ayufan-rock64/linux-build/releases/tag/0.5.15. c9e8f3f7304cab569ab5c0be9fd72897eb76103d2fb8089cf64b2239fa740262 jessie-minimal-rock64-0.5.15-136-arm64.img.xz * Compute binary was compiled on another ARM64 device. The binary sha256sum is 7af00728c651f6c0fe77eb8863dd9638f72232b9aaaf8facb5676999111ed7c9. The binary was archived for future research. * The boot drive was on an SD card. The Jessie distribution was downloaded and imaged on the SD card and then archived. * The challenge was copied to the device using an sdcard connected through a Transcend SD card adapter * Additional entropy was injected into /dev/random via keyboard mashing and dice throws with `stty -echo` * The device was on a UPS which was disconnected from AC throughout the computation * The device was connected to a display and keyboard during the computation * No swap was configured The BLAKE2b hash is: 2917a39f a4dc45d9 61a8e72c 4e2e20e5 f842c6a8 876d91f3 167aa41b ed2c8251 dca1077d 9903ec2d 313bfcef 8808a425 ccabe63c 4adb91e7 9d3e624f dfb7a6ac -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJasTa9AAoJEOOqsosn9c9KXo8IALPnFUHAvy/T3S2xxXnAuOJX gvdllRznB/vti2HId6IqBX4OLJ1sNNNZMgSODA2VOWW45roVtaiD+zLe7evDmT3B zF40DszsaMlO62sMjqIDkSOo67NC7qbYDVVcpdcddcMJsLcelhyTf8onCXdcIRJL qEBvFmDUzqRYqCeViK8g5zce+z3/dazHR8hp7CE2wDvZbRJYxEJ4XwzWimFAYSw2 LoohNWXA2lB7CbIpxQM0mO7Q8yv0Gxi0pdUE6DfiP8RECZpUps7tOJrEgLebIQRY RKAbYM4HLlXaNyMZOoUfyVrBUrs6do1C8QlgkTClo1+EnDS7VYOu3tsaSqD4qdI= =Y1Hd -----END PGP SIGNATURE-----
attestation1.md.asc.ots
Description: application/vnd.oasis.opendocument.spreadsheet-template
