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-punbb_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 18:22:24 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b146d15ec1d3e8f95c38b09f797b80d88ecd84cf * md5sum a0279a53adb5cce2b5ce9bc47656e0c6 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) iQEcBAABAgAGBQJSXYfZAAoJEIXCXpWhbrlNs5sH/Rxx2/cdrU0qaLRv7w6922hB MX+/89/0z+eCcd3HF5ouGzHgq66lWu+TvOdyr6Tuzu7wnmhUAqoWf+OHBDuCUw3y /0tWn6HcKvOJxkMItKs2WulaM4LyRFVWuf2U7ZP/plbrDtFpJSe4yWEpFqw7m72I sQ+6UzaQcaPAvQBlEy5YhJYj4rFBYDMu7ZlYl141NdZ6ttUQSTvsc3EgZwBKp3/v q9+/yLVzbwM6juzvpHsmz8xOHAQhPGHpUgLX7NsCQPGL39C5KcjLxyycfwAJx5ZK Z6L/VCJvmOTjErMOKC28T4S9tHTIBvqnip/wInn3sCghf81Jj1Dfwc/2OOSYyZQ= =D+sh -----END PGP SIGNATURE-----