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-6-turnkey-appengine-go_12.1-1_i386.tar.gz.sig gpg: Signature made Tue Jun 4 19:46:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ac9923d53df71f5b1909ff4d948d68e1b9054a52 * md5sum 25d250baeca2f62a64de02236bf5d25c 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) iQEcBAABAgAGBQJRrkQEAAoJEIXCXpWhbrlNtjIH/0N7wgAwYleGmleSS6CxzMwm 5QIf3JglpagiAbVDwbCoOohlq3Gde09IoNp64Sz2NjIKrue+8HNvFLojC6uxD1nS YklIyTIOcpsHsPqtywMlggIHWfpvUd9td+Vj2MF2BzrsDLeCH9P/XNxCC9W7M31k aGH0PoGIRSRxYR/GJbZSTST1qDpFPZq0PJG56u9KdGmIwqfDQYjnpjzO4tT34ZM1 mNy9R6ab1h9ytQAjaZt1gZ1CTfHHOFljKr1VF3cuOfzuSUn+1yq2lQAcPoN/8PKe Ku7L+355UnjGSSG091C/KGJoizsrGNgXeyuca+bJcrKMw0yVNjMqx5dRwGFspfY= =zIKK -----END PGP SIGNATURE-----