-----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-typo3-14.0-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-typo3-14.0-jessie-amd64.ova 89703a967aa04236713f39cc4a0205aa $ sha1sum turnkey-typo3-14.0-jessie-amd64.ova 53d7176d4e24d94057dd6066caec35b8a2b76a3c -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdaAAoJEIXCXpWhbrlNO1MIAMzs2KZofmnilzyDH0Ub5R0l 1isLskPbIw/NmziHH6GcfAUzvLuoY9yq6BLieTsjbKZDBfXZ04FiJDU+OJpIRPOF I19OuAOVNi2Gqr6YbS5xy6m5KrxDE6xofA+3mGSGI4C7S4c79nnOI7iICa5xujoz qguOixO7MOIniCxBww+2EdJQgTglYrEs9sOf+s4HX4FFbZOOTcDRRz1eDhGYps80 s2o/FTMclTcKEMGroE9KuOdgZzOGhhjtL1oG+IlBuZSf2cIFxyYFjwHoWiag7Xvw cROnml18iLErYMxXBDD5+nTN8wFPLRF3PXE1yQD3liwjLwITXiHlCaZ/AcbDvHw= =3xZK -----END PGP SIGNATURE-----