-----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-drupal7-14.0-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-drupal7-14.0-jessie-amd64.ova 48c781b0ae7b274f10a27cfa1db10daf $ sha1sum turnkey-drupal7-14.0-jessie-amd64.ova 300df124f3d0d9c1f004d0ba08545dd9c7978bc4 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdVAAoJEIXCXpWhbrlNj90H/AoM5nvv0szA/UDrRdBvHzeO dQTvjdX+784LJdIJi3zBh/CULIgVyedDFhGp8RRVPbGGOX3eybcLSS1OB1PxdAzS sEDKmBt2ygv/W4+K0uWrP+tu/dd4oTyZuwDZKbj3ZXH8yQWBCVGoColQ403bIu8U uKU1oABQ4mU4W7DE9MbChyVx86wOXBlil6vXkA4QrLReOGlcpwSsMxl1GBsryRyO pIK12xzNtorGUkl4L3fQg7pAsTZN9oWkaQuZjcBucDtEahhBK6LLXws9XTd7fLu5 FlQ7V8IdXrXnZyO3PklIL4c6+dxQZwwfv3dTLtNLhO0u+6J6oOaor7BRA+rTOcQ= =jA94 -----END PGP SIGNATURE-----