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-oscommerce-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 23:12:25 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 731311ff632309c25b0753d69a3e2e835ac9d9f6 * md5sum 1b098de22f84f48f79b399214eb3435c 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) iQEcBAABAgAGBQJRrnROAAoJEIXCXpWhbrlN0z0H/1tTbPqSvAy78vZqZP/r0Sfg szEw8ZU/x1iF8naawYOmeuFJb9QYqsg8PksK4ua0fSfr+hy0PSQfrvkQcEnGp1SY biYBs32+M1aP1wKnz2dNUxRyutsA52hOquedDr4Iw+6fjkirELdkHm4cinHKonNb ZfBvi7RKLEtOYJpGpEl+ZZzJYiNeqEeGh2iM/NnPEWl5rFYcHUeEouNvFTL2gXN6 4zB6NyT3/2Nk0CXXLcuGnmRzss8dG+Wr5flJ5EsBvdJ7hWAh2BfLk+rwG7Rc9zBC vs/PzxpE3BGM33lShVfReH6x6cXiBFJ6blVyGnYw8z72bpJaYKgSJ3Zhmx0U82Y= =Fwfc -----END PGP SIGNATURE-----