Thanks! I confirmed that you are John Dobbertin from the original ceremony.
Sean On Sun, Mar 25, 2018 at 7:19 PM, John Dobbertin via zapps-wg <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > > Based on my participation in the original ceremony, I was invited to return > for this round. Thanks to coordination by Jason Davies, I was able to > contribute. > > My response for this stage of the Powers of Tau ceremony was processed on a > driveless Intel-based (i7-4510U) Tails laptop using the Go implementation > (https://github.com/FiloSottile/powersoftau) to increase diversity. > > Building and computation occurred offline, with radios disabled and > interfaces down. One-way transfers across a basic airgap were accomplished > using one fresh USB stick per direction of movement (a fully-patched Windows > 10 system was used as the post-computation transmission system, to increase > OS diversity). Given that the enormous number of participants in this round > of the ceremony intentionally working to make themselves difficult to attack > rule out the practical possibility of a perfect, wall-to-wall ceremony > compromise, I assess these less-extreme precautions are adequate to raise the > cost of an attack beyond the potential value at risk, and I don't intend to > grind down any boards or dump and rehash all the firmware. > > After powering off the Tails machine and returning the response to Jason via > the transmission system, my stage was completed. > > The BLAKE2b hash of `./response` is: > > 77fc8ccb a8550a6c 7255b82b 3352bb83 > 075fdc07 9a84beec 8175287a 6cf9b47f > 89f49a29 1025da84 994753d8 3d9169d1 > b370345f 367cb2db c18b2137 33c5b303 > > SHA256s: > > challenge file: > 1889aa7939934715d736a15d69df3be4c7cfe2cf92a4df0eba774b321126359b > response: > c689849bf65da90b8996c267d11768d56c357c479c176af367da480451ec2603 > > > Thank you all for your hard work, and for the continued opportunity to > participate. > > [This email address is not monitored.] > -----BEGIN PGP SIGNATURE----- > > iQIoBAEBCgASBQJauEjtCxxub25lQG5vLm5lAAoJEKZEa6gay7SWaqAQAJnIJxpm > WWdpFr3YNSXnZjVYKgU0qlbAo4HJ8hBpfDrmBelol4Z7TKw5+LdW3Huk3C4Vfhrn > wppJP65/o2K9dholW2Gu10N084fb4sLUYiyg4RIC4kyM5lUvckQaLb5k/y28luFc > yFNFbVeZiS4OnJmYimdv8/XI7Q+YKX/I6WVGVAmS/ntr4nzSZ3k5XDuVFZEvPR7A > H7h0nl30LwVCypsUN70eyExOnIhbHV22yq9sjWs/g0s483WAJ0bl0icaSQBltb0H > 1SoP2BjzVuLYXp3bNXY9aObLLhxX9B9zrW2Hp4JcOXBU3ikD7sFxYOcAtEmS4QCc > hWXt3zwxCJUtUfg6bH+wgbIJRiJJ87RPDAsrwZmgvnyuDPADmUmyiYR4Hy3206Ra > LdLTGr2dRrYPwJXBSbCFYz6dEfsEgpkKH3jjWBIOVbE1eqzzXpdyVkqfWI/7/PMS > gnfGvsZY7pRL1eMd1sbU2/7ztb4E++TpSdcnvBJCPs9ulYTfMtddvcsrySUOEHPG > AsrXara3e256PnD2dGbS7Y50y8AXddt/dgVU9bHhqIh8lXsblI84SshnXZl/1j6J > Mz1n9l8qC7IzX3XC86BodCWRRdO8rC28z6Sa73GIozRFpemsM6Fepqape4dMhUL5 > NHkqH8GGPsPv3gqR/8jl2VyFTlrEAYSkNtOZ > =k6TB > -----END PGP SIGNATURE-----
