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-torrentserver-13.0-wheezy-i386.iso.sig gpg: Signature made Mon Oct 14 19:19:04 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9bcca1e46c007c69037a9f5b9b8cb35469d9635a * md5sum b4d922e2da2504a2ac04a5691fd5c75b 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) iQEcBAABAgAGBQJSXEOdAAoJEIXCXpWhbrlN0KgIALKx1y7pcu7oU/KihaCE1g9+ YPP1ZyhHPAhY6eBDI/NUAWJHDdkosYUeD8vXmTM5A+JfJfw4x/MXMtdaozZLLl99 pmBGG3UZWs44Jeri1XISk7NMNe6NWdIPJYGMeDwG8omUZ5f6FabUqNmQwnSrqksj XidhxDQApNy5KfjrU6jKjlhk0CklJVSvUTzdCK83EVuakFBNgTkpsgrVUa/2knCZ mvnDzsfOh6MZ4nM07waBcXCzo4sEUTjeFSm5Q4K6FgOwyKpzi6LzE+x/53+OibMK 7/D1jztXw6drLZ5LJNVnXQgI0CqLWUmA6Hfs13ENpbWZhj3QJXW0QdDpy7FI4/M= =31Hk -----END PGP SIGNATURE-----