Add a linux gpg role.

ansible/roles/gpg/files/gpg-agent.conf

@@ -0,0 +1,6 @@
+enable-ssh-support
+write-env-file
+use-standard-socket
+default-cache-ttl 600
+max-cache-ttl 7200
+display :0

ansible/roles/gpg/files/gpg.asc

@@ -0,0 +1,34 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+mDMEXZwWGhYJKwYBBAHaRw8BAQdAfv7qozKkmf4D+5PDzADsMm4aAKDGLha7+Cu0
+0H+RsWG0HVRvbSBBbGV4YW5kZXIgPHRvbUBmaXp6LmJ1eno+iJAEExYIADgWIQS4
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+=a/z4
+-----END PGP PUBLIC KEY BLOCK-----

ansible/roles/gpg/files/gpg.conf

@@ -0,0 +1,90 @@
+#
+# This is an implementation of the Riseup OpenPGP Best Practices
+# https://help.riseup.net/en/security/message-security/openpgp/best-practices
+#
+
+
+#-----------------------------
+# default key
+#-----------------------------
+
+# The default key to sign with. If this option is not used, the default key is
+# the first key found in the secret keyring
+
+#default-key 0xD8692123C4065DEA5E0F3AB5249B39D24F25E3B6
+
+
+#-----------------------------
+# behavior
+#-----------------------------
+
+# Disable inclusion of the version string in ASCII armored output
+no-emit-version
+
+# Disable comment string in clear text signatures and ASCII armored messages
+no-comments
+
+# Display long key IDs
+keyid-format 0xlong
+
+# List all keys (or the specified ones) along with their fingerprints
+with-fingerprint
+
+# Display the calculated validity of user IDs during key listings
+list-options show-uid-validity
+verify-options show-uid-validity
+
+# Try to use the GnuPG-Agent. With this option, GnuPG first tries to connect to
+# the agent before it asks for a passphrase.
+use-agent
+
+
+#-----------------------------
+# keyserver
+#-----------------------------
+
+# This is the server that --recv-keys, --send-keys, and --search-keys will
+# communicate with to receive keys from, send keys to, and search for keys on
+#keyserver hkps://hkps.pool.sks-keyservers.net
+
+# Provide a certificate store to override the system default
+# Get this from https://sks-keyservers.net/sks-keyservers.netCA.pem
+#keyserver-options ca-cert-file=/usr/local/etc/ssl/certs/hkps.pool.sks-keyservers.net.pem
+
+# Set the proxy to use for HTTP and HKP keyservers - default to the standard
+# local Tor socks proxy
+# It is encouraged to use Tor for improved anonymity. Preferrably use either a
+# dedicated SOCKSPort for GnuPG and/or enable IsolateDestPort and
+# IsolateDestAddr
+#keyserver-options http-proxy=socks5-hostname://127.0.0.1:9050
+
+# Don't leak DNS, see https://trac.torproject.org/projects/tor/ticket/2846
+# keyserver-options no-try-dns-srv
+
+# When using --refresh-keys, if the key in question has a preferred keyserver
+# URL, then disable use of that preferred keyserver to refresh the key from
+# keyserver-options no-honor-keyserver-url
+
+# When searching for a key with --search-keys, include keys that are marked on
+# the keyserver as revoked
+# keyserver-options include-revoked
+
+
+#-----------------------------
+# algorithm and ciphers
+#-----------------------------
+
+# list of personal digest preferences. When multiple digests are supported by
+# all recipients, choose the strongest one
+personal-cipher-preferences AES256 AES192 AES CAST5
+
+# list of personal digest preferences. When multiple ciphers are supported by
+# all recipients, choose the strongest one
+personal-digest-preferences SHA512 SHA384 SHA256 SHA224
+
+# message digest algorithm used when signing a key
+cert-digest-algo SHA512
+
+# This preference list is used for new keys and becomes the default for
+# "setpref" in the edit menu
+default-preference-list SHA512 SHA384 SHA256 SHA224 AES256 AES192 AES CAST5 ZLIB BZIP2 ZIP Uncompressed

ansible/roles/gpg/files/scdaemon.conf

@@ -0,0 +1 @@
+disable-ccid

ansible/roles/gpg/files/yubikey_relearn_keys

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+#
+# GPG associates token serial numbers with keys. When switching to
+# another hardware token, run this script to associate the new token
+# with the keys.
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+gpg-connect-agent "scd serialno" "learn --force" /bye