-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --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-asp-net-apache-14.1-jessie-i386.iso.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-asp-net-apache-14.1-jessie-i386.iso 1a5c128c836ddf93d3b99c9d6d609318 $ sha1sum turnkey-asp-net-apache-14.1-jessie-i386.iso 572910cad1aec5104d8d2ac5e1bdae23773fc4e5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPwAAoJEIXCXpWhbrlN1jEIAIM39Wbub7gfTzgTsFLqE7Or DfHU1Ev+rj+rPuRdnrIYPNvhQpXLipjXk5Einnxsfec/xqaKHpgB3EflME4VZwhN ZRQCk2wpwgiAeJXWfPo47Hfxq+SpLwyEdqkaDl7Auu8jd2UVMucd3jiK4GPuKnhZ WPWJkcpZXYscN779mR7JWk5xeGTpv+YbhQQFmsMDWgkwWvqT28glh5gvIZUYKgnw eq5lbBxBRUnXp4zP9pNWyB4NibLGZu4vFqNYY+yvSXC/jtDCNNKBmhkaOuyr9IQB RZPWqfAf1qFbm6IAGrWDIY0024nwAuSjtSWfAVe9F1LgrnOI+SwfnpEWbVGtiYs= =/xQ2 -----END PGP SIGNATURE-----