-----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-icescrum-14.1-jessie-amd64-xen.tar.bz2.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-icescrum-14.1-jessie-amd64-xen.tar.bz2 109df384e01910b8a4785c4bb105354b $ sha1sum turnkey-icescrum-14.1-jessie-amd64-xen.tar.bz2 1f96ebd9683b84ffabedda1c1f0bc11244db8f4b -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnzAAoJEIXCXpWhbrlNbBYH/3uB4Z5VnR4EgENWYYQbgJpa Zb0nObji/SWzSiI/apZbOt7wWsJsdFSls9nUihQ9j4dI4UYEKwPGJVp8OjRhcxJY NIDoN2l8MEhD6MNQcud1387SMqTsaGma/B98eQrNs4pHNI6ZnIl4sRkQLq5MVpMa HtNA/f15q1Cm053hjv/Diy21tWoD81SD+urixUy9EHm8nSUe0m7iontDhH+Xnam2 VaOb8ADiTjTXk55ZnRVZYVGJRyO3w4+FBKmjNWR9gXLLkSHcN7X66zma5tsIssE3 r2vR0WmG0ZkgGh+Uu5ydoFtbMnbWOi/yWRJKTv6t9uIME/MGf7hFlhX/BOxHpLw= =hbli -----END PGP SIGNATURE-----