-----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-mediawiki-15.2-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-mediawiki-15.2-stretch-amd64.iso 8a0662c666bf557fdcb49ba625d451306b41e6053c7c6a813f089ebeda947533 turnkey-mediawiki-15.2-stretch-amd64.iso $ sha512sum turnkey-mediawiki-15.2-stretch-amd64.iso 5dcacfa1bc7940215bc05a5466eeb06f80008473b898fbb12a163b5153dfea60f6caeb48637c26f04cde62a6a392ccb020adcc22285398a1c6cf13ca759a6727 turnkey-mediawiki-15.2-stretch-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mediawiki-15.2-stretch-amd64.iso.hash turnkey-mediawiki-15.2-stretch-amd64.iso: OK $ sha512sum -c turnkey-mediawiki-15.2-stretch-amd64.iso.hash turnkey-mediawiki-15.2-stretch-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pikACgkQhcJelaFu uU1L/Af/VVLE3AlBG1OfCQabfTIZuDHOYbLgnMN2OtF2g9CYosaYgsQgkoOaNpPH eT8dfz7AOGQLsgHNHqw9WseREZ1IR5EQdy+XP4tBiavTFTpg0ZuzT35vHvZCBX23 O8SCtASmjfdoQ5UxTZOPSeJR/mVPWEkSj1f0sBTNky1OWaooz9g0qsqw5icQhGnt 0KjDk0z5wG5CpCuPZcPOpl8oR9Ov6XSF/usfCM2WVAScSNOQMGynrZlirjxFSotu yfPbsc6TOGHPkcmtA3nSTISVbNM20HdSedIwKbCGv7Erl2L6wbEFYnzT1uCi7HJk oXp+Tb21nDhsQ0DBodfsanPDrEDHIg== =9CFP -----END PGP SIGNATURE-----