-----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-phreebooks-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-phreebooks-14.0-jessie-amd64-vmdk.zip 3dc19590cbb18ca41b4d47dccc06a5a0 $ sha1sum turnkey-phreebooks-14.0-jessie-amd64-vmdk.zip c2510c47c53ac9634dc1367b7b135a256932d008 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdYAAoJEIXCXpWhbrlNn6gH/iJA3lQJXoOk7nvhTKfSR6ws bHXLPQul/NS3fzRGzI5P6GLHdERnMG5JYr+6yf7FZ0r2k5M4WneSJywYayvsbf/Y TpAYTKtbci6A2qT/B7G+a4FhoEiBKGMqt/BqioRJDjWwKrU3SEPSPnTfVTur2y1c sS3cGyZvelMHnfGA3SbZW/c7S/oGGrcYh9a7f0YQWc5YY6gm6gaFiqWGMuDe/5Ya joDJC2q240nPeio3id8ApljUjTtMKu3kjIT6UmxLakNnXhGgT3yx/A4dx1DB6rCq 3/MfiZt9fPTBGutIkDOF3j4iIobGRJOl6A0up/z0mVzfYsbJ/82sO33AckBu0Tg= =tv2x -----END PGP SIGNATURE-----