-----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-tkldev-14.0-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-tkldev-14.0-jessie-amd64.ova 000246fa5fec611f04267e1c07c52ecd $ sha1sum turnkey-tkldev-14.0-jessie-amd64.ova a050730d92fe2bf711bee9065fa7b24cd38959be -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdaAAoJEIXCXpWhbrlNdhgIANN/EjXh6A5XLNlzZb1Ctjk6 DN4o5PSwLpPKwK754pJ0oB5X/mSE9W8pqwABQXZyiGSbzC/jTSAXFYNjQZGRcGIB 89YetnPwU4Zj514gPrUdQKDcOYptoD7WyxEYiyBK3NeEgJOXCP7lptzA68rdOLTv ZxvH4e0Bzh/CIzqTa164Xny74eMg4tYNVGugpGdtF2nWgR/upJCfWy6pva6ZEdHL HsD+BHjCzl3rEsI9hvf1KswhhSTZlEF0LnYqDruvHgqu94FKsvH5KIyiDBy9yZ6M dZBJLa9cehTK9Rh7X+mD1D4DarV6Jhl1TJAQ6cduFsnHzVy18IfO87kbjptCg1g= =P6QG -----END PGP SIGNATURE-----