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 bootstrap-wheezy-i386.tar.gz.sig gpg: Signature made Sun Oct 13 14:19:12 EEST 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 669010127db33878b33f5b11d1e709b05a86631b * md5sum 5038fe021ed2f22a30c1027e77fcda53 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) iQEcBAABAgAGBQJSWoGvAAoJEIXCXpWhbrlN07AH/3MMHOKMwhFF9ZG1BW5N0dwp OgAllfvaqBgWlNdAphbrz0NmA4Qbwik+EEEunuGAtyCHSozZqA0UvKcU6QfiBH4V WnIOgdpEcccbNtL4IHE/QiFrOXg+rnuFs0DvKku4DbfiggkZT8s0mmtjaTBC95xC IuHXyeeBip+8ephbntoqraED7yY3Lm2Zcim3LzW0SkRJUm2Rk2QOSNoMVKsY7vzi lehAG2Xrd8Ut58i2R0GsnXLc+aXlceR0ml7BifcoP20SaOufZS3eub8ScDq8bAOl exVprG6pDXuXCqPRj1xJRNz6GsJN6YIKpF+3hNbrBG+7oCWQG090tXFONk3M0r4= =kZsO -----END PGP SIGNATURE-----