-----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 <release@turnkeylinux.com>

    $ gpg --verify turnkey-concrete5-14.1-jessie-amd64.iso.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-concrete5-14.1-jessie-amd64.iso
      b6717e7809a8eec9809a1c2ccc2ec986

    $ sha1sum turnkey-concrete5-14.1-jessie-amd64.iso
      7ac882738569a43c593efede77c4216e0f879fe8

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

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hNDkMd2aXP7APZq3OZC9A6AaqcNB11NeqgICq4NiOOgu0QnO8G6PmaHffm9C1h+y
Yd6ytRDqhsVrxiQaRZWfhh3pjVbiBWxEaTpcC6z6ni4/4c/VJu/RSmiM39TznaOe
L0kDQ4Pizz8jbjrXOvL6ISSHQ/DycbodUycI+tj3iDvaHU7TpvZEW/XzuQtu6N+D
WJXCZg7NRRUfXzdrZ+zOmYU7t39/ZWnmYCzubMSbL4YAQtLeXmO4ch2+Nq1bswE=
=9qYn
-----END PGP SIGNATURE-----