-----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 turnkey-espocrm-16.1-buster-amd64.iso.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 turnkey-espocrm-16.1-buster-amd64.iso 81b333a24cbd7becefb3b7969df4bd2d9e082403d0ac0ad17ca304f607f55d62 turnkey-espocrm-16.1-buster-amd64.iso $ sha512sum turnkey-espocrm-16.1-buster-amd64.iso 3f4f02bf5e2085f28fc3d8474a9ee82b6c2b145eb3983f43a69851ff1eb4fc2ea1c0f818ee95eaf51942f3ccb529cdbb51b58b0446b4dd684465bc74c2b87818 turnkey-espocrm-16.1-buster-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-espocrm-16.1-buster-amd64.iso.hash turnkey-espocrm-16.1-buster-amd64.iso: OK $ sha512sum -c turnkey-espocrm-16.1-buster-amd64.iso.hash turnkey-espocrm-16.1-buster-amd64.iso: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAmA7b5cACgkQrF6wBJPl vBymgw//dZSQOUx/sMwpOKFiNMoi8SuaFVrftMVrmmy6xIwQXAUEjmBpm1KgLzjb 9pDk8untG13uah7XBCUZwgvs8boBkt0AJHfELetXKOSRawZmmDJw1CwYlpZ7xaq3 e/0vJcIcx4HPoxmWzk1O/o9vB4I0MzCnFwKncz1KIh2Kzm1X22NIzw5mZYvH9Zqz mfrqGmMW/cxc+Y+8uviJiCxaIcxaYkVMkTsiB6UhQWVlcdM0gLJVQfd8G9uijfPc VWReKz4I34r33HryDpc3PaMjq4Gipwp9yQrBYpKuBcdUiMLR/Toa516mBuTYgZEd 1XaUTZGCpXGVqsy19aW2WMjBfP0fAjJQ2KwGmRNGv613FJUaPJaENZBqgWTl1+26 RdguWVxM/9qbZzMW22hSu6FF7PvlktZvfoglVmsILxT+gJa1frsebYhAkdTUTCGG M/jJ5jYhDjbI5O7bJF0qiqFBHaP25P5hmALq5U0RNEl2EsAzH6hdKHHESZQuYisp s2iiu2uSWaOakL9YvXTYEMwi4jIcjMBLrS5/CS5/X4IBNFNhTAKAcsGPFMM9vYBh lKDmh+UxOjU8yKEVIApUvrOvRSp42k7qmeS5nrgLDvQjB1Gg2p4FIvnCUDxDSBNQ 8Vxm+ewU0HlsEGxaXyUCqJHr3GGiJDTSton+HZrwwnT7Kzp5dM8= =fKFM -----END PGP SIGNATURE-----