-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Powers of Tau Operational Writeup, Round 28
===========================================

SuperKerem
25 December 2017
London, United Kingdom

1 x MacBook Pro with Touch Bar (and Secure Enclave)
1 x iPod (no camera/mic/wireless)
3 x USB Flash Drive

Entropy sources were magazines and literature from years ago.
Unintentional typing errors were present and left uncorrected.


Procedure
===========================================

All wireless base stations were powered off and unplugged.
An undisclosed live operating system was validated by a hash function and copied to Flash Drive 1.
The Rust standalone installer, dependencies and challenge file were validated by a hash function and copied to Flash Drive 2.

1. The computer and iPod (playing the latest XXXTentacion album on repeat) were carried into a storage room containing no other electronics.
2. Flash Drive 1 was inserted and the live operating system was booted.
3. Flash Drive 2 was inserted and the Rust standalone installer, dependencies and challenge file were copied and installed (where applicable).
4. Flash Drive 2 was removed.
5. The response file was computed and copied to Flash Drive 3.

Following completion, the computer was powered off and left for 15 minutes.
Wireless base stations were then powered on, the response file was uploaded and all flash drives were securely overwritten.


Response BLAKE2b
===========================================

808abaee cf085fe7 9bb4a6b5 ed8af312

af6d89ce c6687704 f5a45112 ee8f032a

6e9c20a7 c362e08d 69a1207d f61b738e

870b57b4 4af25a82 d75cb5bf d4dbc8d9


-----BEGIN PGP SIGNATURE-----

iQIzBAEBCAAdFiEESEnCdwuGE7/awCvaFgpebCyVMFMFAlpBiosACgkQFgpebCyV
MFMv8w//SzgJPQfBib2744ZGj17XmUwKJNGkJB/23dYoQHuxlNvaoZjDv8OlcVIr
y/+zeenPiShCLe0IbdZltEDLs88rS5B7gUiUjbkMVy9favIMyq0YyDMYbL6+ia6+
MtN0bugtr4bq3+F6ECzp8RwVC22ycL+tqLill6Kz6bYkMEUt7If4EgnNt/QU18f8
oayLyMMFAxVd5Z1rHm6mmEqy3Dtg0sIM/1gocKa2IvOBQrfOrtMZKkGo6IUClJCG
LJPXN6ZaJ51n+5CFfP1eMXIxW/fBUuOmw8Be2OSAo1aG0yY4uOwrjF6zKXDlFs6D
t3EtJlVShXIcvpEkU8JBpxwZf2Gy9z7oexvu2uhQHQ4+kiWve4dEiKcgubXvjR5P
nowRUT4QrA9v3RgWsAxX0/N3oHWBSEXPBH/TwiiN93+eguSUyz2scjoY774S8iMI
UNNnuQKNm5GRv6DzneogO3KlvMwrzddPtRDtV7pCFTbQ9Q0ZP6mr6/F/KrVQLUoW
mlAQHvgGW52sb33okZ9ERqwvgvU655rrphwt6/sIO15OiChsZq7HFUdGMI5XpZs+
g+YelXQK5W0aFtZtH8qCd/3t72b1gMVGhyyhpsZTDMz73Y0Smxp1+xplPkD3ZZwL
93aVZdxmtA8sWxBD9A3ftfuANCK3ximbknpb9rZ8vSe13T6n/0U=
=g6Wy
-----END PGP SIGNATURE-----