-----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-projectpier-14.1-jessie-amd64-xen.tar.bz2.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-projectpier-14.1-jessie-amd64-xen.tar.bz2 5e34ed1a514e96d388535733111abdd9 $ sha1sum turnkey-projectpier-14.1-jessie-amd64-xen.tar.bz2 c8c86db9a9aef345ea0474483f16bd7b1e9c6049 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn5AAoJEIXCXpWhbrlNzjkIANUw88MVgQ38Gi3SPEG8hMy2 2/saQB7r6xOD0OanH/VLyVBYZ08Qhgp+CXlMazBg7H3ssZwAhVaA6KUZVFgvg9r+ SUyOa9fqbW8koFDxU1K+NTxPxZAAzxN/gTG/is6w/FFGGLGlNjcCqRuKZ5ldyVwB kW0phphKfXvLV/80bGOtwjMYHRS9+qIbaWGcJ0gSltrQA0+afQaAvfmvG9lJeUHu Y7YCSbBwjVHpOY+Ek5coBtByIWyLPzjoZK35NbGd9JPCMrA8GFZ2Fg6JagslqHrg 6aZ6Dbtfd+B1bxeRu9a62lmrmKKJHUvc5g6zAnVmy/3k3QSSb3B3SdMbnqLZxog= =UnXE -----END PGP SIGNATURE-----