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 turnkey-nodejs-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 09:21:22 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b5b0b633eb189c64e95952a1902debd45d87d416 * md5sum 6830d837a08d462157b1a76c9cad6fc4 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) iQEcBAABAgAGBQJSXlqKAAoJEIXCXpWhbrlNbO0IAM8lAecPK3i920zHwy6Sbess dQwhJMAIfssmqtG7l6zKL2rwNwYTVKwt8ymoc9ovioUicC3q8kDlLvCxyuj6h5aP GpHdEwOWKmlJuUVPu/0vdpXXhJKFKXhdcbtIji7n0tNwIjt+okydqZsZjWmF4e0W VA+z+g+K4BwkBk9X5haAQRfWhvgHiER5w+0S3lO775Ow7ZNW3zVakq/8dQ349sqD Xf4SbZoGK1wGk2AwZAnuSChZ5/ifLWlkFr5ia8YMtaQhScKnfucTAgox0GK6G58m C11QCeRZrkx3G40KlIvlGMHXYxzRF8jhRNE6b27moCu9lb1d91vIDlcy6X511I0= =eUL7 -----END PGP SIGNATURE-----