-----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-lapp-14.0-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-lapp-14.0-jessie-amd64-xen.tar.bz2 582c9c1054160bfece0de47d60a1f222 $ sha1sum turnkey-lapp-14.0-jessie-amd64-xen.tar.bz2 6ae03bd8b765f31915909a1aaa1644a67d1f1df5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiBAAoJEIXCXpWhbrlN2jYIAL9CAE/s1sdjrZ1DsR5kdumj 3Eq48T/c7ApjZya/jezkyEh+mJUfqVSuc36IOiehM5dN2upDxMnkMPrzzeJ4lGJM oGgvZU129dof/V0o6nN/0DPUZ+o9smIsqjOJnOfp6mTj2tmpKXIJW6jDYFFoJUG/ zsjiXVTyTOmE+EnC+uBhrSUBIDc37yEbNFLwTsbs61mIDm/7OPEa7XoOXbW8GTy4 r4rENAepuQ603V2NhrmHsolD1Np105Aswe56GrBINXfKjNL2cIwZLgTFM8rbkUDb +ZGfg5nC9HKliHcOJp8Y9MARMW95xvnc2QArR0W4NF0RA8h4PeMJuyMlgnPETWw= =H9dG -----END PGP SIGNATURE-----