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-sahana-eden-12.1-squeeze-i386.iso.sig gpg: Signature made Thu Apr 18 13:57:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5df5a4d2fe9b638c7faa2b03629cc128084286dd * md5sum d9c553c5d271d1d15144c9575aa0f40b 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRb/vCAAoJEIXCXpWhbrlNweEH/0d/FjEWqSXudLc20kJJbVd6 VgNnaRh01SC4SkIuAgIWl4Wg2VuPy456gFiY7TRrL1Glxk0U8qH5WUdePkViYj4N o8b5mTlaLO1mk+nj5BTgwt2+QTnQv4nVM0jghPG/3syHCmZyo5oqaibnc/kp9oDR 0arTEc+uJEieT+8OOBCmt8j5eAf6jbjuRwIid9clxeO6whUMHvN9fZyisrXYuheP ZQOysIUnfOSqdrkNSLgpwf49Zo5gRf+OE67zvuaDIv5OjqKdgwpHuDG7g2v2ICIZ r9WMdx4zc9haIjbmYumngJRjRew7x0MnzmxfdRxh45usx1K0HxlRU5hrdwUNhYo= =qKfx -----END PGP SIGNATURE-----