-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 To ensure the image has not been corrupted in transmit or tampered with, perform the following two steps to cryptographically verify image integrity: 1. Verify the authenticity of this file by checking that it is signed with our GPG release key: $ curl https://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import $ gpg --list-keys --with-fingerprint release@turnkeylinux.com pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] Key fingerprint = 694C FF26 795A 29BA E07B 4EB5 85C2 5E95 A16E B94D uid Turnkey Linux Release Key $ gpg --verify debian-9-turnkey-e107_15.1-1_amd64.tar.gz.hash gpg: Signature made using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key " For extra credit you can validate the key's authenticity at: https://keybase.io/turnkeylinux 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum debian-9-turnkey-e107_15.1-1_amd64.tar.gz 9bce6e15dddd51991600c5f4f15accbc028961d5fb2bea07845c7eb039f2ff5e debian-9-turnkey-e107_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-e107_15.1-1_amd64.tar.gz c7c3a13044c96bde973290c963818e50646fe6cfbc67fb34ac5ebcfb4ea21a87cf1c7348782ecd9eacadc1703a273ed442c81770ea446f1162c5f68d1862dcf0 debian-9-turnkey-e107_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-e107_15.1-1_amd64.tar.gz.hash debian-9-turnkey-e107_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-e107_15.1-1_amd64.tar.gz.hash debian-9-turnkey-e107_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pg0ACgkQhcJelaFu uU2b7QgAzjcDQ0tCM5CvO+uoD22FNkjng4xnkHxilWz3N4AAoDNUPNICIFGCdyOu s8mvUNlZeSQapwMSP+JfmXOLiUGe7PgkSHRR3E7oyk/+T3vyktJekN+W1QBsfxfN gMpb+Ahjj19p+D3Ry03dFeOYHOuSQ7EGUWKaRjEctW9nn2Mnsadecb2ycis16/Sb cnIK602A8n4WDp+Mtgbc8oNwGmx9Bil5fIfzJ/4y3cnNnj/MBXUD9VFTTVUZNNPb MSUIfVXa0DxCVgt5ie6yIInhR20I6yxluJgbIIhz96BqAxCAXk4G6vYBeqjh6e7a YiaLyKIeJze5vUYXBXdXNf1UStesgw== =FRYe -----END PGP SIGNATURE-----