-----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-tomcat-apache-14.1-jessie-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 turnkey-tomcat-apache-14.1-jessie-amd64.ova 980787c34e8b35aba8b3c9e29855d3f3 $ sha1sum turnkey-tomcat-apache-14.1-jessie-amd64.ova 8e4e1a2b7da31084987872bfaabc7e6cad99689d -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn7AAoJEIXCXpWhbrlNm20IAKGIM9f0FJR9vcPs2RNAYxW7 R2Y97S9iLOCV4H0h+XFCUpeQwAKGkFuqcXV0eeLwy4gXhYkmpDcYotMRdOegwjww ypOS/e1I+w1fYOU9IlG1AikW0Pi/OZlBkrXsNLCcDyWaLFpj2G/LjKS09Fz3EoZ1 ZpcINTd6M4yv3ZtFX7JvAG76qMbO249xLvRt4jB7357MSefK2BT9wP8Im3mmlxT3 6eUo1bYLoHhNswXNkwzE5x1vgPC3i6ZzmD0F4Sq0gqOkDmCPDFh3gSPnlgXANYdO XljCap60CKpBlgxAIdTUz8BXTNcFDtq6LsSng3cNTB6OzttAgax3PzaiSMQjRw4= =gq2P -----END PGP SIGNATURE-----