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

To ensure the image has not been corrupted in transmit or tampered with,
perform the following two steps to cryptographically verify image integrity:

1. Verify the authenticity of this file by checking that it is signed with our
   GPG release key:

    $ curl https://raw.githubusercontent.com/turnkeylinux/common/18.x/keys/tkl-bookworm-images.asc | gpg --import
    $ gpg --list-keys --with-fingerprint release-bookworm-images@turnkeylinux.org
      pub   rsa4096 2023-05-22 [SC] [expires: 2043-05-17]
            2614 7592 087C 0EDE 4214  3B63 7761 DEBA BBCF BA7C
      uid           [ unknown] TurnKey GNU/Linux Bookworm Images (GPG signing key for TurnKey Linux Bookworm Images) <release-bookworm-images@turnkeylinux.org>
      sub   rsa4096 2023-05-22 [S] [expires: 2043-05-17]
      
    $ gpg --verify debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz.hash
      gpg: Signature made using RSA key ID 26147592087C0EDE42143B637761DEBABBCFBA7C
      gpg: Good signature from "0"

2. Recalculate the image hash and make sure it matches your choice of hash below.

    $ sha256sum debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz
      ba85242226b89fd49a511d6823e8089dade2a08dcaefe2d3809a5626806dbfa8  debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz

    $ sha512sum debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz
      0374c4d7434d75eb84e02f9215ff5e0f77c917dbaf1f212e422f4befdfe032209d5915b47f934559895117b0aa8818be5b1d27c6f33b8bac10111363dc1c8575  debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz

   Note, you can compare hashes automatically::

    $ sha256sum -c debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz.hash
      debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz: OK

    $ sha512sum -c debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz.hash
      debian-12-turnkey-nextcloud_18.1-1_amd64.tar.gz: OK

    Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted.

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9b8i5ZaZOmhRjFdplSW9hOR/inL6uG/e+3vdP8DwCcmonhnPHwXmabLDScdBFcsK
cnFDaU4TSopkupQP59bbTyY+CAN6cNjP2UsfLJf75I6Y+PxYAorzvhdvj7xKci6Q
UBSTAsqZjMIYK3DBe483W4s0g3tvc8xJCpbVlOou7J2iinQNdOkrG9RuDprkjFPA
43TZaFjCQqYz9wMuASTLAQwfohP5prSKYqosVZj6PQV7UNiRzewZZtveWhX5+CO0
BPPak8iORRPvv0U0PJuMesoEO3C5/gGjPLR/ihO8EgBs2BK7ZPnJmXmBhGdnBa4m
7OwG892qXyDT/yksk29/ZqUW1eDOVEEXZJ/aXvg4aX7UZp06/S6TLvSAtW2DTo9r
ch51jm7ss/TRzcQo4TxOYH6UmV1/y7EPNOzAsqyCMXdmv9Jw71So8vmNAYu3Lxaq
qcx1lsHvXU6JLIQJwMTRPRjyt2NcKRhpk6IwzWjlSN5H/RoRHVc=
=tfp8
-----END PGP SIGNATURE-----