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-mahara-13.0-wheezy-i386.iso.sig gpg: Signature made Mon Oct 14 17:59:16 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum bb64e88268bc9b1d57abec01716c68a79c1ee4ae * md5sum 216fae9ac2a68806439b11073dab7d76 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) iQEcBAABAgAGBQJSXDDoAAoJEIXCXpWhbrlNy+wIAINjYZjzb0FfCg6yjGMaq0mL U+IMBb+eFmd1sCmlAZhpAheya9/apcUqvkLsqBP+j3Lq2wl+1FqwUUfUSXabyQH1 3wi38twTX6W9y/doOcpxcH0u9iMXJAd7963coXLaE6kpPr0bvQ4uoPS7rL9iif4b qyC3WFVs497awad+4dED+qTJAMvcZLUsaGyJRj/HKII1AZK29Zf9r+Y0CJdVs5gu xc59waFY/3rEcgFh3p2NIQmdOg7g30mOJIeoCGZm2w+Q+7TJbLAdlwaxLD2GdlJv pTOmISg/Qt0CzzyDZ8VrLXviKAUfbIEgw0+w26X8AdslLkRbj2ssY7WmRhwSCMc= =LkdB -----END PGP SIGNATURE-----