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-lamp_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 16:19:53 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e884b9bc9adc36304cc4402a90b227efc7279f1a * md5sum 8e8b66fcb2588a3d76d5c79dceeaa3b1 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) iQEcBAABAgAGBQJSXWsjAAoJEIXCXpWhbrlNR54H/08CuN3hlr+ODRnzDxpYqExd PPiHo+ketG0EYVwpx8yO9LSPsWLZXXcSAGGmXlGa2uC9wSByqbN00RL80FXx7rvv UFPlEWXw1kUzH2TuBUfDJru7AiSUX8NCbDQ2EVZeFKgeGx/lk11xs+dK9OG6he8b d+yrMN8ypxDokgnW50J0M4nMAE7CWTaSt9rwrYTcFJi2uimOKtihYqK1A40nWmQW 09ATcnZ+KkP6zrfdTDR5ODn4gCeaSf9fkN7dXS4hvNT/6I8MtkOD5cLhnqz122WN EBoq3YAruZvmNFBp7BmtPEewdRfjsulpkp/JcrZ2SYG6QwOQysH4qwbpI5/P130= =JnIY -----END PGP SIGNATURE-----