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 debian-7-turnkey-tomatocart_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 10:31:06 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 3430c936a4a99d5ed9918b31bb545ab4aff82d59 * md5sum e0c2bf256cd6643e57465bf40d5fb08e 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) iQEcBAABAgAGBQJSXmrjAAoJEIXCXpWhbrlN/OsH/0FpeUfZ5JqniGo2QDaCKKzI PKA4Ew6HYmueGP/ae9zl/9afcZiHCbRWt4nzSgXyJnAAy3iXWic8zBYIINP7A+M+ VY7RhBkaSv4Yqfjo//k8OkJwfyCNveoPxOM1bCdSUhzAG2+QcD3JKS5SipfTF9J3 7wybieg/yOFqV29J7516Lw8IQYxLvjAjMbWJAiKsHJvRGnG2sU6gSs4CJXdR8GK/ KDuGtduXMGzrc4BsYVdocuwJVulEEGzqtCg8LwT35docSWPEdtmMyY06TEfZPG06 FlX9XM2gu7vAREJXMmN4QEO7y26ILhF4BmNbfyEb6porh5APmgP3ItcFaW9x/NM= =MxDC -----END PGP SIGNATURE-----