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-movabletype-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 17:12:44 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 983a780e3f843e38260349d2c95ac7a5d092f8a0 * md5sum 3ecc264ee71d95eef96e4500df12f5f4 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) iQEcBAABAgAGBQJSXXeCAAoJEIXCXpWhbrlN46wH/2k/bOnoxP25fHuCAsTGj4j7 HAUizOKlf/20ZtTsyPaIG4z6zRZluq8h5fnUtAeup9/AmP5HMFj0/OmjVGFWYYLW 4rJE0pUwtIxpgLHaf0LS1oudiD5TJ9iJDnNm5iRo834yEhZibHlRE2uuDfCFS6U4 9eW8vISk9EtoLCgl0+BbFj1YlA1H0xiWqnaLvfrCTMfQJpMeuXPd9Wmp4iDjrlos V23eQoi3kWzakm1J6uNAL3q4vMWZ94cNRqC/Vzjr1I94U5+pJJVglLvwqClPJfzB ErDEfGgtunK89EzMhI4wyRZnOV4Q29kPH4kMWrLm/Dg+V7byadK1DL0EUJ1+rf4= =oNa6 -----END PGP SIGNATURE-----