-----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-moinmoin-14.0-jessie-amd64.iso.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-moinmoin-14.0-jessie-amd64.iso f7a924bba6680ba244137687ec99602c $ sha1sum turnkey-moinmoin-14.0-jessie-amd64.iso e29c71787f318e7081a991856cbd78966e3d73a6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJV7BrpAAoJEIXCXpWhbrlN1b8H/14cVofrn0INLAZI8d/TPPgJ 7Lui+hPyq38uuMaFAzPshWUP7bfHgCVZ91ccEzuMM9+WT8eloHPp2qHVEYmTq8XO ZbQfpLxGtAMAeFYl91c7g4NOxMYJdEeljRvuKxGZGyVk0Zk/tgCgruO6o2cSX5hy qmKZduuQIOfAs5ft0L5WazsexqdSwhKKN913KOtwGoJdYe4TdtV4pVD+qt7MHb8q LXAv/Ouuv8Uf0I9NAgZ+HMJ5ajmreE2x+HCSIk66ycMIyzPNbmExTOX7S4w1exdO ozYOCQ6NMCVplM36VABYsgY2ppLFqLyIkCzE8IILGlYtPMiX06rhBUkW8GFdgBg= =29CY -----END PGP SIGNATURE-----