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 turnkey-piwik-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:34:22 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 595eccb827fd1d38e2aca413408267b0c6164677 * md5sum 9da06ac7323ceb59451b997b903bfb69 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) iQEcBAABAgAGBQJSc3WWAAoJEIXCXpWhbrlNMCAH/AihNjlXVAFCQ2I1QbFrFKvi wuCXABqRiAnPDKqIlFT6Cy6f8o6yS2u+qbyPjSnXyE5UDL9KFM72Qe1vg/SWt7IW mrrO/UvqNIwce5WTVfC4oq5axBgZMnRuscsfiqOnYIWWkBhjDVGyYllFvPoKiTNF kiYlTiJAar/EolDUnZ/Rpb2agh8bUHcjDZb2mVPOCFd2wYfNEw+AkFkvpceUOhoT TSKDeNZiiYVwehPCQiNrxZ3TXwCsyE0u40trQpZggdny2NTLzPs1bjLm2YiKwLZM BoScxvFJtPsQKKA5AkxcItgWnkO2hc5qsx4j/8fmzNs+lg2MxK3tVIrOmLlEc24= =CgUf -----END PGP SIGNATURE-----