-----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-phplist-14.0-jessie-amd64-openstack.tar.gz.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-phplist-14.0-jessie-amd64-openstack.tar.gz fc5ecce7c4cb5dd9987f6fe0943ebed8 $ sha1sum turnkey-phplist-14.0-jessie-amd64-openstack.tar.gz 3a76c4dc91b3f25495228c9689b35ca8dcdc34ca -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG+AAoJEIXCXpWhbrlNzjoIAJ0SuxTsXBvPDdQi9jRZGhnY hpe50XxwU1FRa6coplLUQt8SEnNrIJmIzjUtuhQGYW8OJ/d06pP4v6HOzUj5HHUy 6WXZsKECi9/OiEsthekuSYnupXK7YIl9XIQ0BlvG8Ok03tmPDUGli2QolyhesYoU MgmLbW+1qDKrL3lzURqxfTUEilc04BSbaeXaaZroBys5cI0vTEVhpgfMJX3kauQ7 WxhDb/hNy7HTHhxnz6rOV2RXPhJNV7xcR2kbJItKyfI9L9EjGtY2nk3BXs2QEsoD oDLsWrnXlTaAgw4hOcQkoU4Bz7elA6FVezyjctplELUKBqho8RqS09OFvnu0r/M= =k6J9 -----END PGP SIGNATURE-----