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-nodejs-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:23:37 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum be42203233bc55886f523652ac657c47e7bfbb3b * md5sum 8c92eb506ea50d1d88ade1ca08db8afe 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) iQEcBAABAgAGBQJSc3MRAAoJEIXCXpWhbrlNvXwH/2bGo9kvD+h8uV1VTxSFPBMP OnXHyXBTdSVpCbldlOEgUjUWZPk8C30y/QUIwNWDJiQhQ3grxi4KwUKzLlFPi/zZ cAZ/g/g38hNPnV8dMG9CvdpEl9w3Dme6g3p5WSrdVjOH+4X5vlXqf3KLTQ2hGOQM pOJdD7DW4ALBd7gYTB8fwGRwnVmcISEESUWnISHdLqP1a57JqAPgmAfdtA3VNuHk gcMHIzLctY8JKJZ9dS05BBHK79MU3vJAFekLCmusgElqH6qXD29rRjnCLexzl5PW veeFiuolC3/MQNyvC9jpcnmX+fjXYiyVL6Zl5TGcAyrQ3kgTJUWkgkCR1lUxlsI= =abRb -----END PGP SIGNATURE-----