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-cakephp_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 08:19:00 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 73c8c9b1e88b9773578fedd58ed58e51038612b5 * md5sum 220cd3373ae458380c39e17e4989a9b8 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) iQEcBAABAgAGBQJSXkvuAAoJEIXCXpWhbrlNvwgIAMgJ8MhW7q+jfs3EGVvc+hoB 3zdcy+jsxrLGvveqaKlKmYjG3q7AX2kZCLBOnpgCC53xcLGsNcf8YFiXc9gAWJxv 0aDj61nXYnr+jgjCgUfOMZJ2tERcWC5IEA5U4QV/RwRjjIeOsn7f2WIzR0mUvAva VczH2srg28ja4aofIAtaFSKnKKTdj/Mb5GtgcXv9xg/NRs0bBdtqIIYd+0s+b+bK icLFB7zufGzBNJQKJj4am4J/3wh9sC8kj3hm0o3Blg9yVS0ix9pjBR88H4mk/5sI PbKKfLsyVSXW6fmnCSCryBZ9kmyRBzPcnplwC8NpHuoCgfg7LCd8fBR29gVXotg= =UUly -----END PGP SIGNATURE-----