-----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-typo3-14.0-jessie-amd64-vmdk.zip.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-typo3-14.0-jessie-amd64-vmdk.zip b7d93ab0598fb73142fb9c03d9a83dcd $ sha1sum turnkey-typo3-14.0-jessie-amd64-vmdk.zip 16ab6c7fabf9cbe9d226f69dae8e33e783da8f03 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdaAAoJEIXCXpWhbrlNW5MH/0C4nwjkV19IYMoFlUUePG8Z 4+OuZuu5fW5GeY1jDmxrUeXk8gQPKJtXTlfVUU40yHyMwU1DyEiF4RU68v1biQtH 1rOmzUQjYjr7EIfBPbmSRiDftT4mm1MCRZedKZFLQ6UiTU3GN7Uagqo18Se4ymUC AraMEaMJ/fpCFYn0KFKtnHji8h8lvxI3DiGgk90kYsFEaK2KAfZgORcIfgKtfyJV 415vw4x367PmiID4RKAkPWgM1YAuwxFD6lRb3yy/W88ljJpBsjFJPz6EkZHfklsf zvpGcOAP1OYO58Wj78ZX74EQZ3jCd6HNhmFo395EOwJKX6DFh563CsYMmuYud9Y= =jCdb -----END PGP SIGNATURE-----