-----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-b2evolution-14.1-jessie-amd64-vmdk.zip.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-b2evolution-14.1-jessie-amd64-vmdk.zip 512426287171aac3bfed42e122c3d2f7 $ sha1sum turnkey-b2evolution-14.1-jessie-amd64-vmdk.zip 09a0c5f02042f727e18093230411e9500a0f3cf1 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnwAAoJEIXCXpWhbrlNppcIAMG1Rc6OI998yIUsSZ9f5CD1 +6PdNvnH3GAWG11A6eP2GSEins29GXA0KuqZtjhk3RmeTy/tHzG1R4M00EfQ3MyT bQkAueTz8XdfuQAkLPvks3sMFe6hpulsAU3he4EzL5qou7DEXUVSrvUeMbsFDjOW dvT5Q5HtDXvXXSUnEMsI6besmznEv7k+MhBxLhUgY9QE1q8H0xvcTgcaIrB0qOUv CW7fjBX4SjIilv+nSmLbo1h02VkzZEwM1HovF69sBC5Ynbvfe1HcdBHCa4wGfr8U novO6yjMjfaXxlWWKBQmyxhFbqy1AD1EqInnOmi85wCIidHAfxU2pBUnA7yMiKs= =agLN -----END PGP SIGNATURE-----