-----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-plone-14.1-jessie-amd64-openstack.tar.gz.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-plone-14.1-jessie-amd64-openstack.tar.gz 0c7a3480439807751c256b9d30caa21e $ sha1sum turnkey-plone-14.1-jessie-amd64-openstack.tar.gz a8387a88d456b984f72b31f94ac3f2c956321057 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn4AAoJEIXCXpWhbrlNEToIAKEiuzacgGLoh4DmzyRAg21W DtkZacLvkTuggrqNMEsRWnY/lgpcbi1kI+PXkHu22rMc/Os7ycR0A5cHqNk37YV3 ydcnes0Ty6ajF8ynOKtkRafU2MtkRf1QoJCX/s1anMxUROPKUxn1fZvNdAry8YNC QZqgVMDV5/bxS4drpNws2KIJW4Asc4nkbmNmFDkQwJHWkKNA4K5ENrcGS8Of22OI 8DglRgC1ialMrxvDrLzdbiouFm4fNfJWMuureeYFAnBGQt441CVmjzFcbyzN+f7k p/4yWzkNkFXXf1Lo9sssqJdk8BjakLfKXE5m85/ZRuKLK9vgrlwjcKcmP/NjHnw= =GnD0 -----END PGP SIGNATURE-----