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-oscommerce-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 09:30:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 24298497be651ceb9392a9772766d30683bb12f9 * md5sum a0b5ea9a66d24cc68cc2872fcb8bb9ec 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) iQEcBAABAgAGBQJSXlyXAAoJEIXCXpWhbrlN3isH/0W7wIhYbGqV1Yx3oFJ/YTMp fslz+0KJiWH4eIArWQ6T5LmXiTvCs79O2bNPy14uMUjyPkBFnDu4FDOyrymJzRCd ZdTea4ASH01Ip38DOnXd+u+ZkPB3c9Cp1wq7hAkNe+edIybkhRW0VwIhdZTJuFiG 3m1L/b+2oHpmw9/3zRi4w6rQUkzA+ouJM2HYRZ/vik5nAAx/hxe3jsPxhli6t9ce oYsKJhqOl20Sy8Yt8ogd4L5H9RawZslnCjax2fpyoNFxWRKlLrh/G1K0I1vPh/F/ SFSwDM2ePzg28WMADxBHs17sOUYWfgvROiQci5cZF3Di9nHuEeCIX8esKk4UHT0= =3n3N -----END PGP SIGNATURE-----