-----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-tracks-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-tracks-14.0-jessie-amd64-xen.tar.bz2 802c8f3605ad1dba77cfd47cbe67aec3 $ sha1sum turnkey-tracks-14.0-jessie-amd64-xen.tar.bz2 b590b106c4f39cd84733d6128be3a17fe71d4de7 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiDAAoJEIXCXpWhbrlNPDsIALr1lM0yo02IcU7XlmseuoTF eZRSpTmoX45fiFgxI8z/OlJN76P02NJkTRmUonNrU8jySvtaGV7n7CYWX1xgw7+H l6at7ERJBRnvNbJeexL5pGmuULP5ZSDP7LnsbtiXyc97URFmIAzJNj+daZ98F3pQ DuIJCPnWNtnYo4LwFN0N0cjkWQGCmQW9N7KZa8yvbt4gR4RbKXIlF18eiolBCeh9 QRi6u9M+W4vetBKYBH2MEO0S7FS+UHoMdJp7Z7Dqg9x0sAXsL0yprdl50DcxDGZZ ge6zDllxMgpZ9+k5EFsHIB6M3p7Kqq6HLkP1vdcl4TqJAl80UNk9i8f+rMLoxzE= =hT2L -----END PGP SIGNATURE-----