Announcements

Messages declaring stuff I consider important. Signed with either GnuPG or minisign.

2025-08-27 - OMEMO fingerprints update

2025-08-04 - PGP key update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

The OpenPGP key 9DCB446EF5B024CFE88583029EDF3F9D9286FA20 got prolonged
from December 2025 to December 2027.

To fetch an updated key, run the following with GnuPG:

gpg --keyserver hkps://keys.openpgp.org \
    --recv-keys 9DCB446EF5B024CFE88583029EDF3F9D9286FA20
-----BEGIN PGP SIGNATURE-----

iHUEARYKAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCaI+5WAAKCRCe3z+dkob6
IJ54AQDncyLmMUrDvfexdgs3ox3K+iOi3Rtizd6ApsI7tteH2wD7Bsq9Z25xsu4k
z3Sm8fqE+4RmbiPNQvJXB1WHKGiqtQs=
=EnPu
-----END PGP SIGNATURE-----

2024-06-15 - OMEMO fingerprints update

2024-06-02 - XMPP account change

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

The XMPP account at 404.city has been abandoned in favor of a new account at
conversations.im.

The old JID:

tdemin@404.city

The new JID:

tdemin@conversations.im

New OMEMO fingerprints for manual trust:

037ec729 287017a6 5953a722 1f1320e5 14746399 e3ad3690 16a88e05 076ada24
1e959988 ff95df59 f965ffbf 63683650 15d62998 3ed6d826 a085742d 1ead9f1d
-----BEGIN PGP SIGNATURE-----

iHUEARYKAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCZlxN2AAKCRCe3z+dkob6
IOBKAQD15gKap9LCRzoHphRio3ZJC7q86TVFlLS568HXii4WigD+KAeApf0b1kV9
lZS7cITSBNN3qRMhkBtqEyVlj0Qh6Ao=
=GXNz
-----END PGP SIGNATURE-----

2023-11-26 - OMEMO keys change

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

OMEMO fingerprints on tdemin@404.city changed due to adding a new client.

New fingerprints (for manual trust):

9196742a 69bfae8b 26e5103c e8a1fbfc 4b716027 1889db74 d8ff7dce d3f8ac60

Current set of fingerprints:

77d06117 f5842b28 252c3069 9c52c5da e03f9d3a b7b21f4e 11e7b156 8cca5a0d
9196742a 69bfae8b 26e5103c e8a1fbfc 4b716027 1889db74 d8ff7dce d3f8ac60
-----BEGIN PGP SIGNATURE-----

iHUEARYKAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCZWN5gAAKCRCe3z+dkob6
IB0aAPkBT1YhFZIDbvKPxHAFV3LJynOI5WucSkNNqZ2VaaVskwD/bBsHo/bf0fl5
TJcAXmT0ZYi7IZ+2xYYPiQDo8hQwLwU=
=YMgF
-----END PGP SIGNATURE-----

2023-07-14 - PGP key update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

The OpenPGP key 9DCB446EF5B024CFE88583029EDF3F9D9286FA20 got prolonged
from December 2023 to December 2025.

To fetch an updated key, run the following with GnuPG:

gpg --keyserver hkps://keys.openpgp.org \
    --recv-keys 9DCB446EF5B024CFE88583029EDF3F9D9286FA20
-----BEGIN PGP SIGNATURE-----

iHUEARYKAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCZLE84gAKCRCe3z+dkob6
IOKYAQCUY1H7+E6sKCMXOQIDo9P8Opp84KlCw5MPBhY9BjMbPQD/Ztl02B/6kCRs
1cRWO4qEoyfmLH6h390iM6yHjBTLoQs=
=gWUh
-----END PGP SIGNATURE-----

2023-07-14 - OMEMO keys change

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

OMEMO fingerprints on tdemin@404.city changed due to a number of
intermittent device and client changes. As there were too many changes
to the device list, only the currently active client fingerprints will be
published.

Current set of fingerprints:

77d06117 f5842b28 252c3069 9c52c5da e03f9d3a b7b21f4e 11e7b156 8cca5a0d
-----BEGIN PGP SIGNATURE-----

iHUEARYKAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCZLE8PAAKCRCe3z+dkob6
IBcOAQCEPLCQWwyh76BBgQshx21QVt5d/91mQE6X7aAmRm7gpQD/dUjzIo9mMr0y
ZJCm1VlrdUSM95Iij4vcppfa7fCENQ4=
=7xUY
-----END PGP SIGNATURE-----

2021-09-21 - PGP key update

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

The OpenPGP key 9DCB446EF5B024CFE88583029EDF3F9D9286FA20 got prolonged
from December 2021 to December 2023.

To fetch an updated key, run the following with GnuPG:

gpg --keyserver hkps://keys.openpgp.org \
    --recv-keys 9DCB446EF5B024CFE88583029EDF3F9D9286FA20
-----BEGIN PGP SIGNATURE-----

iHUEARYIAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCYUomgAAKCRCe3z+dkob6
IJqhAP40f7HYHid5x97RDMX7q1YXKOHPpxM6yi/qXAjTxzMK9AEA6hl8rtnM+Zo8
vZ7n2yw2OQIsWiZSceJil/gqE6GjowQ=
=USxF
-----END PGP SIGNATURE-----

2021-09-12 - OMEMO keys change

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

OMEMO fingerprints on tdemin@404.city changed due to a phone factory
reset.

The devices no longer active (for manual distrust / revocation):

91ae21f3 0c1eeb2d f342047f 3f61cf9b 7b331221 e8c04594 17543553 0d9eeb3c

The new device (for manual trust):

d21b758f 763a3e12 a857e286 a47cc9cc 6098edfc 82792d21 253cc6b9 82577d68

Current set of fingerprints:

c4d48516 064d2050 ffdff2ff 8dceb07b 64c6d0ee 9723dbcd f9341cf4 6a982817
d21b758f 763a3e12 a857e286 a47cc9cc 6098edfc 82792d21 253cc6b9 82577d68
-----BEGIN PGP SIGNATURE-----

iHUEARYIAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCYT3rJAAKCRCe3z+dkob6
IA9uAP9HrzSEJM7Dltnhdfx6iLJgoSXYhWYMHQ+K6z4gMiImqgD+KOfqTYILcxwG
/ZkANUffbMMA9c1R9iKHLCQbDNx+vAw=
=ieEO
-----END PGP SIGNATURE-----

2021-07-25 - XMPP / Jabber account change

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

I've migrated my XMPP account from tdemin@jabber.at to tdemin@404.city due to
jabber.at ejabberd instance being severely out of date.

This implies OMEMO fingerprints identifying my devices have changed.

The following current set of fingerprints to be trusted:

c4d48516 064d2050 ffdff2ff 8dceb07b 64c6d0ee 9723dbcd f9341cf4 6a982817
91ae21f3 0c1eeb2d f342047f 3f61cf9b 7b331221 e8c04594 17543553 0d9eeb3c
-----BEGIN PGP SIGNATURE-----

iHUEARYIAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCYP2TGQAKCRCe3z+dkob6
IJhrAP9WpB94o3b2usOn2+sM/u0OybN21uywNv8oJ0bcjYoe1QEAzkMyd3w5ZDYP
/UhOvgXFxvfMCoZ1lw365NuZH+nEDAU=
=7CHJ
-----END PGP SIGNATURE-----

2021-05-27 - age / minisign public keys

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

I generated two keypairs with age and minisign. The public keys below are to
be considered mine and usable for encrypting messages to me / checking
signatures.

The public key to be used for minisign/signify (signatures) is:

RWRltlKLStovfiGdhWNzla+GyANAL9ok1Bg15qCAq8oRPCGN6G4fjLj1

The public key to be used for age (encryption) is:

age1h0ea8x07z33fc5lzkqj3kghup4g6jkzsaj6v86pgngwn7gs8q9es56lpwv
-----BEGIN PGP SIGNATURE-----

iHUEARYIAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCYK90dgAKCRCe3z+dkob6
IO3ZAP0emGpy6rzB6nlouBfhzQ7Tm11u/zZBAVwOJzor8uVE0wEA1SZTnJ7ukGqn
8cn2P7kX1DgM7fuYM/ThyKgQpsvJjA8=
=gBWe
-----END PGP SIGNATURE-----

2021-05-20 - OMEMO keys change

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

OMEMO fingerprints on tdemin@jabber.at changed due to having changed clients.

The devices no longer active (for manual distrust / revokation):

d60bf217 987f7ff6 f834325d afefd2c0 014d6386 7ec23604 50bfa838 c17b3c01
078b470b 86cfe508 7bdfe002 baf68429 9ee1c710 6a6a7794 f583a116 4670d629

The new device (for manual trust):

badacfc6 dd7bddf5 d1328b6f 62baec57 a00689c1 7805a351 cd83a2d2 e94e9f31

Current set of fingerprints:

9427d2c0 cbba6dc7 355f55ca 66e2a8f0 7a7da682 521cc65b ab5dd295 16a0f159
badacfc6 dd7bddf5 d1328b6f 62baec57 a00689c1 7805a351 cd83a2d2 e94e9f31
-----BEGIN PGP SIGNATURE-----

iHUEARYIAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCYKZ51QAKCRCe3z+dkob6
IHD0AP43gZYE4Sy9Q13EKO6/s+rMFW9ilSIeK2BrBNBTclsVLwD9GSRyQERj1qKV
e3Ho28Uwsf1XSC1YWEG0WsCFhtHjxA4=
=m9Qs
-----END PGP SIGNATURE-----

2021-04-16 - OMEMO keys change

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

OMEMO fingerprints on tdemin@jabber.at changed due to purchasing a new phone.

The new fingerprint is:

9427d2c0 cbba6dc7 355f55ca 66e2a8f0 7a7da682 521cc65b ab5dd295 16a0f159

The old fingerprint to be revoked (for those using manual key verification):

d60bf217 987f7ff6 f834325d afefd2c0 014d6386 7ec23604 50bfa838 c17b3c01

The current set of fingerprints is as follows:

9427d2c0 cbba6dc7 355f55ca 66e2a8f0 7a7da682 521cc65b ab5dd295 16a0f159
dd539066 aaee9300 fc5273c0 a0336498 ffcd70f0 cc67cd71 c2480911 2ed51534
078b470b 86cfe508 7bdfe002 baf68429 9ee1c710 6a6a7794 f583a116 4670d629
-----BEGIN PGP SIGNATURE-----

iHUEARYIAB0WIQSdy0Ru9bAkz+iFgwKe3z+dkob6IAUCYHja5AAKCRCe3z+dkob6
ILSRAP972SDt1rYlbb/2ZsF+YsZsyANM1Su7PzAMSEebdedPFQEAmgCICGV8hifR
0GJf1xyqeViqxaAw0ercGr5FoJ4XqA4=
=PyJB
-----END PGP SIGNATURE-----

2021-02-11 - Gemini certificate change

2021-01-02 - OMEMO keys