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-roundup-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 16:02:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d1ea5ad80a0084aba2061255a9b0783f4dfd4b36 * md5sum 802c0073ccf92cc70b57573daaa46643 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) iQEcBAABAgAGBQJRrg+EAAoJEIXCXpWhbrlNaaQH/iXNuZ4SHxUF6iDSTmBaRuU+ pa9d9R4WKHr6devgH5vOs9s0ROO6g9g5WvC6QojZf00Arn2vMrBG9lzdiK5cONeS qjJXt61hNGrJrj0AYWnbkMap9O/HoNpe3erxwrXP6URc0B9VJvHEzNWd/7F260K9 FsDxMoVaiDe1+EetaQx/pPGF4B8D70Pc7Lx7yIAoBIGoNSVXjoiVyQ+ZxgYL6Omm 9UjVEN3FYXCvJIvmPoXWuoYA1miFNAb77h6agUzJ0XUsnstdYia+JASYRSB6UGK8 IeBQYkN0v0nr5eWKxtpA/6MkqighuQG/oBkMBbqAPfSoV0QIHXQ1UJVU7Lovzc0= =FIuM -----END PGP SIGNATURE-----