-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 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://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import $ gpg --list-keys --with-fingerprint release@turnkeylinux.com pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] Key fingerprint = 694C FF26 795A 29BA E07B 4EB5 85C2 5E95 A16E B94D uid Turnkey Linux Release Key $ gpg --verify turnkey-otrs-14.2-jessie-amd64.iso.hash gpg: Signature made using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key " For extra credit you can validate the key's authenticity at: https://keybase.io/turnkeylinux 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum turnkey-otrs-14.2-jessie-amd64.iso dd12d3776db08288ba6b8105298e9649275a3a61c91fe9c1028b818f5c4bdb9f turnkey-otrs-14.2-jessie-amd64.iso $ sha512sum turnkey-otrs-14.2-jessie-amd64.iso 6d40e9aca66e6beee1f6d3a43552a2adc7b16c83ffb91ec96e120bbe2ff1a58ac02b3e64ba03b0c2539c7f6ea490c152046b5d6d08ae0e70b5bc0d11139ed247 turnkey-otrs-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-otrs-14.2-jessie-amd64.iso.hash turnkey-otrs-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-otrs-14.2-jessie-amd64.iso.hash turnkey-otrs-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZeIKlAAoJEIXCXpWhbrlNPLsH/21i1pMjueVnv1ww62Qq1eZF cnpIjTL7+gKuxwfSw8DxaFMhr5K8hhWia9t3PX9UvmUpEeJwj+QyGETBERWWn0rk KCpxxRhj4x6Tmp7Y2Q8HSdtPQ/76N0F/EMbarthwVBLi8tRvXq4xvVma7FtbjACi HtOTKsY/MnW0eon0hoYcYcBd6TBKG1M8Yxz9H+ncnq/Jw5DMkSEjM/v+lpv0IbAR atdOK01Gq8SHbuilDA2pbat4gAwOZj8vOZtn9ACmMaQBjhRcLM1BZH/2HJty+yH9 YNASHfjtregyl+nINRdMGo5h774gOCUcYz0k8lIW3HobmPETL3G0zaUVhYs4OOo= =yz5o -----END PGP SIGNATURE-----