-----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/master/keys/tkl-buster-images.asc | gpg --import $ gpg --list-keys --with-fingerprint release-buster-images@turnkeylinux.org pub rsa4096 2020-02-05 [SC] [expires: 2040-01-31] A8B2 EF42 8781 9B03 D351 6CCA 7623 1C20 425E 9772 uid [ unknown] TurnKey GNU/Linux Buster Images (GPG signing key for TurnKey Linux Buster Images) sub rsa4096 2020-02-05 [S] [expires: 2040-01-31] $ gpg --verify debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz.hash gpg: Signature made using RSA key ID A8B2EF4287819B03D3516CCA76231C20425E9772 gpg: Good signature from "0" 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz 9e3d8576e2b97d2585b3e103383952d4b7bce3e10ad9de66bdf6fe25ff870295 debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz $ sha512sum debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz 494ea709423900a5cf634dac89f49de4d2020a22ebc983fd232df62a5e68d71b4fc3315bfbd7b5660aead2535100d2b5190c031356c4c0e6a7d093718c967a12 debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz.hash debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz: OK $ sha512sum -c debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz.hash debian-10-turnkey-owncloud_16.1-1_amd64.tar.gz: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAmB728oACgkQrF6wBJPl vBzNZRAAlxG6psBpyLoxT3nIXzWUlNqCQmSB9A/5aI23u7kMVxgJbvOSvUf57QJy s4dbUTPRq9dm0b/0fierLXFT6MYqC1/agQr13Zm1ZHF2PHA0yvQe+t9oUEoMdi+t g2EULt/GmkZsQLwdJe2RXv/dEH5y3PF0aiP6yhqhtz1VBugt/7721YRqcRazBRmx yUnocLMWVUKE9WSN569Sb6Bahjxp0kq9S6xC/iODpH01+4Ml4LXJT+dUV+IhJYxn B8PNEXhszqXXu1mr19vd3WoSX6zT6pbA3FtAVGG0LbJVNv6PFwNDMES3SlkOshjU gygnQeGYXJTz8N8Y7yNoNLH9TVBt9IU0srLqW3w+UqsRL5Szq6QQ7PWu7fLRorm7 2BdFNGHWqB9/45PTdqLHCviOdWtL7w+4sSKrjvrOewyDlrsCfI4bJIyoPYGRUsBn 4dNSu/uoFnHRbqrDo3k6pSe/SOJLg4F39I1IPx5o+r3mJBJ0f9k5+thTlNaX0azt dwTyVeG3s3lWWMvlxleNJ62QjrW3upzKs75ZjfIAcC36RXHyDE3z99H2YKBJ2LDs CXUIV17lL99bmSfFR2DcfmzHTbpfgStV/Bg3lQx90Qs7/H/EutUN8jeCeq8+0dJA ko6BTXCcGcht+E9rzswmzpTzmbudbiqrgcRAPCrC9rKkhNKeOw8= =L8cI -----END PGP SIGNATURE-----