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Generate GPG key, or use existing keys

This commit is contained in:
Bob Mottram 2014-09-23 14:54:26 +01:00
parent 3b552de3ac
commit 8f392a998f
1 changed files with 39 additions and 0 deletions
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39
install-freedombone.sh
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@ -66,8 +66,15 @@ FREEDNS_SUBDOMAIN_CODE=$3
SSH_PORT=2222
KERNEL_VERSION="v3.15.10-bone7"
USE_HWRNG="yes"
GPG_KEYSERVER="hkp://keys.gnupg.net"
# optionally you can provide your exported GPG key pair here
# Note that the private key file will be deleted after use
# If these are unspecified then a new GPG key will be created
MY_GPG_PUBLIC_KEY=
MY_GPG_PRIVATE_KEY=
# The Debian package repository to use.
DEBIAN_REPO="ftp.de.debian.org"
@ -833,6 +840,38 @@ function configure_gpg {
fi
chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.gnupg
if [ $MY_GPG_PUBLIC_KEY && $MY_GPG_PRIVATE_KEY ]; then
# use your existing GPG keys which were exported
if [ ! -f $MY_GPG_PUBLIC_KEY ]; then
echo "GPG public key file $MY_GPG_PUBLIC_KEY was not found"
exit 1
fi
if [ ! -f $MY_GPG_PRIVATE_KEY ]; then
echo "GPG private key file $MY_GPG_PRIVATE_KEY was not found"
exit 1
fi
su - $MY_USERNAME gpg --import $MY_GPG_PUBLIC_KEY
su - $MY_USERNAME gpg --allow-secret-key-import --import $MY_GPG_PRIVATE_KEY
# for security ensure that the private key file doesn't linger around
shred -zu $MY_GPG_PRIVATE_KEY
else
# Generate a GPG key
echo "%echo Generating a GPG key for `hostname --fqdn`" > /home/$MY_USERNAME/gpg-genkey.conf
echo 'Key-Type: RSA' >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Key-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Subkey-Type: ELG-E' >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Subkey-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Name-Real: `hostname --fqdn`' >> /home/$MY_USERNAME/gpg-genkey.conf
echo "Name-Email: $MY_USERNAME@$DOMAIN_NAME" >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Expire-Date: 0' >> /home/$MY_USERNAME/gpg-genkey.conf
echo '%commit' >> /home/$MY_USERNAME/gpg-genkey.conf
echo '%echo Done' >> /home/$MY_USERNAME/gpg-genkey.conf
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/gpg-genkey.conf
su - $MY_USERNAME gpg --gen-key /home/$MY_USERNAME/gpg-genkey.conf
shred -zu /home/$MY_USERNAME/gpg-genkey.conf
fi
echo 'configure_gpg' >> $COMPLETION_FILE
}