-----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-concrete5-16.1-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-concrete5-16.1-buster-amd64.iso 75873f29b2652ddd659ad2ab7728c01f01e566b05eedcaf9f4a3c139cff6ee90 turnkey-concrete5-16.1-buster-amd64.iso $ sha512sum turnkey-concrete5-16.1-buster-amd64.iso 32452caacd028f45249626499c9d20dd59751715d87799ab481af7b924a4c8f0851fe90878d5cb04b5c50303dd2ba31e80599f92f64d49a4a565078e7b0ad291 turnkey-concrete5-16.1-buster-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-concrete5-16.1-buster-amd64.iso.hash turnkey-concrete5-16.1-buster-amd64.iso: OK $ sha512sum -c turnkey-concrete5-16.1-buster-amd64.iso.hash turnkey-concrete5-16.1-buster-amd64.iso: OK Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE8ZCki1TcVrLH8k3LrF6wBJPlvBwFAmB7280ACgkQrF6wBJPl vByZQg//bgFqGUvX6SyK4lZoDKQqTwZPk89DAuEb9jQs1c+QHK/R6Z0/g6hD7jxU SmS7tTJrMODSEfqi8qWvVI3G38DDTxiYaQr58v+UDuJ83+5IImnX+RlVTZVJEzU7 f1UcELBDoGJ9rnQ0uRkjYDQQWCPLSUUv7yVGPZGGZkKQJIbcqpvzrk1k37yRUY3F lg99T5LiGBmHz4+96Ug5UHUL5pXGfUT7OBm8cTdDbwthtqOwkcuYvHl0WcEceIBq g9+a3xEk2KLN5pBK3OV7gqnCs/bqXx7cQqRaXGGHcuIRAcYcBY07q3d1b6xwkFKy +z4e8gU4DeBb4ZOyMjdWxtosQCe4NTwxt8sGWEWuD5J9BFga85xLYAJuUOUyk2Y6 am3oSMlfpA2G2IV7fAeNXXmVQ3xfKRvPULisv6b2g7xUrhhCh8/o8LH351kQ3OZ8 Whymboeia4pf/zTE5d/08Moc41a6vOB84mP/YGSZYYtX/8iuMXh9xkEDa0Kd+mSn 3WOv3LEI4eWt3nvp57c4sqX4OYzNlStftfK8UpitbPqFEzqkukzEH84BQTBEUalL lJnBXCBWiN0A1Q1ph0nSuRF8LnwbIQCTrVkM8UOeBgJghxL9Tnk7SBPM2KTTIUor DdzOSqJol6tYeUBRAo+sswjByX9zGV0mwAR85h8/baO1zfevLnQ= =eoXX -----END PGP SIGNATURE-----