-----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 debian-8-turnkey-tomcat-apache_14.1-1_amd64.ova.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 debian-8-turnkey-tomcat-apache_14.1-1_amd64.ova c698cd71056e1c47f19c988679e81836 $ sha1sum debian-8-turnkey-tomcat-apache_14.1-1_amd64.ova d55f5a9f1bb1e739e9c75c53967d9ef68413d9b8 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnvAAoJEIXCXpWhbrlNOqsIAOIDCLUR+cYYoX4FfXG9DiTm kPkOelu71QquW9jU4GA9YGlY310iIr9i5VYVxzS3wfS5RdSpip+l95Bzwr+f0ch8 bctKx95xNSn0YB/0Q2EP05D7B4XUedJsjpd8CxICiOXYbtBYUAZUW2MbTzWYD49C I9OjWYOGGWARhK1914W/fG7pavNH9k3shae+RPn5UmZ2CUoGnaTpxKv9C2+zD/qc JAzbQ7xjFJueD18GxEGX0aadJDyDC1DllVMKccUIO6pFy4/Hq2hzMk5LBwHYqQnT H5f0urtZ++YzpZfUxkWPU8qxb2TYVOkyzV/6ryMPC92QjT7e3EQzH25qHHUwx3M= =9nKB -----END PGP SIGNATURE-----