-----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-codeigniter-14.0-jessie-amd64-vmdk.zip.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-codeigniter-14.0-jessie-amd64-vmdk.zip cecbfd7946218a9e3443af05df61af7d $ sha1sum turnkey-codeigniter-14.0-jessie-amd64-vmdk.zip d0e08ef6c4bc1f115e77a682f0028af164f5abeb -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdVAAoJEIXCXpWhbrlNDo4H/12xeUrL7fG+hnAVhybb52Fs zqHsxoZURH3nHraS7FqbP7QmBLmI7M1jVeTxIc0E3nSCqiU92LCs/nwFlO8p5Jg0 zN6Ixvf9YbxT/ELrsz75CKXLWez4HlZmOvDIoJrpdM7x/Mw/ywBw1CsorBr46EaP foZA2ZbH6F3k1zn/reBhSACfHbYthkBbpymgj2eS2T5Nq3NPDRPbxaAOVR9QMPi/ uPl0Aps3Av0qaD4U6XO0KtiOTgYGj2H1HNPpVnHzLWyudkD5szhw8Os0Yx+Qpzey 7jBO+O82axHWJeDyGI/2KA8Shk6gBQycMLhK8zZuRdFksxqyI87lP4/ai96Hn9Y= =u8Ge -----END PGP SIGNATURE-----