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-prestashop_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 18:12:07 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 98021e7d7bb46658abea66b739d5d6455f3f3f53 * md5sum e05d54794560c1509aa1577e87fde956 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) iQEcBAABAgAGBQJSXYVvAAoJEIXCXpWhbrlNBQgIAOJDH1PTrfFJbTaFy14+KpV3 eISOBr2qYEpwhm2AL5zWh5WqESy4AM42+YDsYPOOImBE1ioey8Jdc3QGZJ37TKyA 2AxTIre2G7k3dd+d/D/Iop7vb/mcuICn7/XXWnAyGxTWKIHi7J8O3h6LqHE08krv lQ4V1BkrRhHclqw2C5+uILSZT6rxWl2ydPBsKtjbWrvtMi5PPT0YwaQwPIv8nzOl iIf6ix8n1zzwu75YSLbJ+HBRp3VIDCP7CZQOzYH3nA99cv44OaTvQ2PLpTnYKY0f A106vOm39H2pyH9Bj22GcJfNbXA/BWxXIsKtay3WEvXUg356zV2tV/s5FZdVbw4= =4GyQ -----END PGP SIGNATURE-----