This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify debian-7-turnkey-jenkins_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 08:58:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum efa5d570c55fccf2fc4341b82f35b253d868b714 * md5sum ba5e2a0646eaafd50e84a583b49ea79d You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXlUMAAoJEIXCXpWhbrlNjywH/Ao2IpWjK7ISiaQCVTExtHKH abRsc7lhxf9C8SwSFK/S8DVo16FEueDkeK0forvkdTGuvGd9hxqdqQCkP0jS5VB1 cPnj1BE8omOQQz2UGkoVlDMLJbU31MvGqV1ApUe1v4aqK03+U7r5lTsQPmBk48cF iGhZPMQx4EJWkUFEPuDs5PHnAKGBxPKaidy8E8tGGq6WFT6nbNSCsGhTvGv8xjgx g0eGv4LulIasLvJECr2KieDAEgpMQ7wL4e8bt4HP9rRUboH5FH0NWZH3XwpKX3VH wDmw5XlSoEMPZ1q/9FaNXs8DDRgHeqKYN5o4OiPZ0eYLNrLVi3yKY3W0+VqauL0= =vO/6 -----END PGP SIGNATURE-----