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-tkldev-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Sun Jul 14 12:29:42 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 110f3dc01940e1ae110324e77b8c7989d0075694 * md5sum e361d0691348beab5efc19d4647df431 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) iQEcBAABAgAGBQJR4pmrAAoJEIXCXpWhbrlNw2kIAOujfXbLE3IGOtjyNvjJDUPZ JJAua+jpnqYKWl3SClAOSP/WKJ9n9f73teWjT7tq42S19roQcBozRCQ649iVEOK1 7uNBJh+fX7TaKRDSIFDxg5Br2GctvYTSiODcGVuF5wFQ+UPecQ9cmb/GJoVxnxCw WpyXtcaiCcZBHg+bBjz/6WOQVVrNGjyRyMqifx6R3ITqiCaYgJTIXKDbR/g/ajaQ vDWsFUA8EMb4VTNxKz7fcjpKrp4yYGLB2eOv03POCe6PaRj98qaLtHybiAKi8EJX H5MYHBEOhv2NpsG2qMtKB/bqdy0VLlOKzWblB6wdi5m1M2BIXKqNn34hncL0Wfo= =WaAy -----END PGP SIGNATURE-----