-----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-14.0-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-14.0-jessie-amd64.ova dd308bb4ce1452e3dc771ca4024ec76e $ sha1sum turnkey-mongodb-14.0-jessie-amd64.ova bd0c031753567fe92bd1f2d495506a868f28dd1d -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG+AAoJEIXCXpWhbrlNCVEH/3JGoDRoFbB9wRkX4rEv9Coe huHSufH02CZ2maCMIXlz1Qqjb6V2aK7lMoPWqBH+oUAkglRg+4rPR27VBcjG3mii 2kGnr5SPsDpwdA1JWuq7M/N5H5pyQYT/872IIfDOevjuZLTXhSjez0Jzxtenf+HF 5UBJCH/ztJV9CwIWa8S2NaqsEKJvT/uxhx85tTXOZch+isSfQjWq9Wv7q1ow7B8F /zfdiPDRpvMWcN/VHFphHoeFPtNYdjtT6SXF9XKroiHmwFYJ+jBJ0EpDf97VpsTa /a552W8E3PK5+op8lBZRTR7asG3cpcswjp/4Z5kAY3nIRPt8Fl1KQvrgNKjIfx4= =Iipo -----END PGP SIGNATURE-----