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-dokuwiki-13.0rc2-wheezy-amd64.iso.sig gpg: Signature made Wed Aug 7 07:45:30 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum eefbba276a74b6c25f93e667e4e5c4a0488a0d0b * md5sum 6ce4c4e7516d070ee4ee8533df7ee5d7 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) iQEcBAABAgAGBQJSAfsSAAoJEIXCXpWhbrlNhtAH/Ago1cQ9XpPKPpGV/AHTWa5Y pDH3PflGEfxsdPjlOCDcEv+8Vqx3vIgfDJAXmNoN+JVrZGlHGF0NQguIhdXLtBOZ m58KI+DJET+IBYLYJH0JYmXcM4OraVzi4AS6J93GzDaj8o/BowmVLnZWWPIbDsM1 Tn+ZYCycSsUzTgD73M3IQZHI+VrSl1BL+JDRUQt95m6Clz3LiAdMoMoD6giITG5N NR+nYldPPSpIoeYD6dNUjQ1OyQ/3Uhs37hqNpY5Vgc0Oj5C/a6f/ID0RLxxSUEdM eNHoIS2V8FFVuBRpYyurRm2Yr06qQ8JD1wuxLdjerQmweM7WXBEdjxJoM94mpHk= =NgFa -----END PGP SIGNATURE-----