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-couchdb-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 08:52:12 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9b4a00888e1bb37e67f8b872b7b4c89222e52eb5 * md5sum 1f2267646b97610b5aac26bbf80564fb 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) iQEcBAABAgAGBQJSc2u2AAoJEIXCXpWhbrlN5KEH/j2YM1mwl3VScP7fRtpvAp8w G6H9+e63Py7emDpDvbGNPhcCO5wpHfTL1VcYpK70NMFfT5LlrwBFnUt3MXcT3hTL O4ztwEeZ3f+UuI2SwwhssfSY5quGPfm3Oxg5EYfpbl9mwIDCKKIn9rThMkfLWwCF 6zYKR8wigT74lbwQSYXSo3xQP2lRm2G/xxGnE96B7g057fTofpzmYRslFAatfCHa wNrXQtFd6U5LuNflxgavovdIj+rLzHu2gPLvPwNEuDuo2eAwOrbcmQscYtX1GRnT WZfG5CuDBR+zmk9ST/FhSqZGuFdLLvs5vsdnKoGrk8iyr8PF03QL0/EbwCY/mMA= =2xFn -----END PGP SIGNATURE-----