-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-moinmoin-14.1-jessie-amd64.iso.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-moinmoin-14.1-jessie-amd64.iso 1d92a2062e9a8d9459e512141a17f006 $ sha1sum turnkey-moinmoin-14.1-jessie-amd64.iso 8b807b01abea37d33301cbf707d2986ceee7d5c7 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPyAAoJEIXCXpWhbrlNR1oH/0qvgd0eCBFhXeCTP2uwuNcm QP/B5LYPntRAPpRVTeRZjU3KAXnjLzwUQ6TGjgGsQ3qQ29JK+Ur04G7qndEWr6IW i7mwD4/P53ScXR+b+v7IufBt++lJtyX5cyDOg691nBvfZPFAUatuQbezkYN+BHTe nMDZp2YJwtKA+TDnCo7nUAx/wehu22EFkdHphYazftODb22yV3GKtzWxZXQwdb9T 9fwhB5BIGFFeTWZDYwwLemZO3daolGc55gmud+3ZsBXOIv5150CwuYlqjAdgNEqm SLv4rtiRNchZumJc1utz6Pp5B6itXIHn1CtIV72vvlO8C67qeuCyqJAhRkHSfQg= =sWgb -----END PGP SIGNATURE-----