-----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-mongodb-14.1-jessie-amd64.ova.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-mongodb-14.1-jessie-amd64.ova 64f682d0bad0d2255a7afa5b76e499cf $ sha1sum turnkey-mongodb-14.1-jessie-amd64.ova 29e12d7a5613680be5e0659428145c5347a957b4 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn1AAoJEIXCXpWhbrlN+bQIAIOnYqJoal1qjNTTzEFjBbiA dj4Yc2LXFNE9ClnOSOsr11TE3B/Bcu8oOAaUhqcxJLW3g/7GCySMLcBL3QH67mPe L/LP5lQCbqK7S+tKbl14bjpFKD7wwZ31LdaupgnhrLPv5qKG3Obv4yy2mtbLTfOr P9UHz+oyjLD771ASLI+kPtCFxXKJsrtGpc09vSSc1mKiYTz4LJXysah5ntLNC77W dAy9xLShwNg7IKMuIa8ZhrFN7y/0BuuSbt6CGpv12e18ofJzz5h20LAyzaEx1dVP VU8wPhPvgCKVWW10Rei9UuI0k5+gLYutnavnY1sarR0Ma6hUVCy/oDVA4KnsGjw= =I5Gk -----END PGP SIGNATURE-----