-----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-tomcat-apache-14.1-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-tomcat-apache-14.1-jessie-amd64-vmdk.zip c8fe8ccdd2672bde624d10e196f73643 $ sha1sum turnkey-tomcat-apache-14.1-jessie-amd64-vmdk.zip 38c36186ce945be3f1f23678d114b17f4a13bdf1 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn7AAoJEIXCXpWhbrlN4k8H/inq5+OQAf7hLnDpuXelCY5B f+bRF8tqb7SKR9Od36BnaIfrS4yAO2nF++gGwbKJt7Cf22+9a4EdXRNtKI6HYCAo f1l62C8Fb2JaJ7ScTHs4jPL+A03O3DVmQxaQGR1qKLhgW3RY4CAS/F3ZCq2JKrOd faf88Nnx+MpL+tiiuI/kqB31kdnUjGO43f+GJHrZWaBKstybiW2m730TLEDCEjdz v0DN786mCYW997TKTlY0YGlWQUCZKSxI7LBzOleG8D3VGjlj0XKWD6wo28Ut3ky6 VHCD4LgNoIY/q5cCwdVqWj/ZtHMuNbE+wyYzVhnHY05a/7+5Zt2cqnAt0vrJYuI= =pFQN -----END PGP SIGNATURE-----