-----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-mysql-15.0-stretch-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-mysql-15.0-stretch-amd64.iso d244965973b33205005e23fb4411377cac8fe8e8a0814ede1ecdad9418796790 turnkey-mysql-15.0-stretch-amd64.iso $ sha512sum turnkey-mysql-15.0-stretch-amd64.iso aec934796ed534c349b2f465f993c71099ed580bb0353c82892a6e44f876d3fc51c47aaa7c4bc8ad3835f0cbddc6aa90465b5b7e655f122ad410cd8371dd0136 turnkey-mysql-15.0-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mysql-15.0-stretch-amd64.iso.hash turnkey-mysql-15.0-stretch-amd64.iso: OK $ sha512sum -c turnkey-mysql-15.0-stretch-amd64.iso.hash turnkey-mysql-15.0-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAltMlTsACgkQhcJelaFu uU34ngf8CXFUBUCVv1nqU7JPIzYumbyOuRLTIxFkppLHALqvyCl0F3swqNRj/ueQ 6mKBPSvFWOau7PakkMhR5xMUFbGicUPMPZs0REHWq4JPLQSsAYpLwoOm3EOSPWBx c1noN4lcCkJcdQY+jU8JxG9lyjHq8knryTjlXdf06FSqt9y3GHP3bis91ik6lm8a NKJezR/I0uV0CQfK7Zj76oh2oZwdFFusejInqLCJdDdtLXs5WdXInBrkib3p3ivL 9ZfjOg7aVS1qPSB6qptttlV5XO9x55VtWNfzjIoIoE+HRwSQdyzqab2resZkgV6+ FLtvoJ6dJIxwHPGoS7QeFv6//a2OUA== =Ztsd -----END PGP SIGNATURE-----