-----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-phplist-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-phplist-14.1-jessie-amd64-openstack.tar.gz 96ea20f8832d0e759f1ff420b8d74ab8 $ sha1sum turnkey-phplist-14.1-jessie-amd64-openstack.tar.gz 03703ca43e70e391a70a993827ad0d648d04d0b3 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn3AAoJEIXCXpWhbrlNm+0H/2Q5SOvl4SYB9YuRpdm2VjXG wjto9cigc/AdcA8hIOF2tBvUuD5NuO5RCy7eHUrUUV6HBH6H4DERlbu0ZIuFgenS nQi9JYBLfcWlvXZOQ/v7BlvRgDcDCNoT/3t+ByR/GpolR2CAdDr941UugULiMxh4 zWI1f3kAlG9cAX/lnXycgWz4IeUOIh57BKXvV2xKWjZqmcmMzW4fWfcmjhhCnQ0v hicBthybpm7v480hap4Chsg5TVxdLxxc0NZqpplN9N05cbRJFOtgiRCcAnugB8KX g9XQxrwAPWfYABWAiiEkya5V4DSU9QnTbC68D9sq4gjLr3JPpvVZ1QwwrfJhmtE= =0JRN -----END PGP SIGNATURE-----