generate-test-key

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-only

# from xenserver-ddk-files 1.0.2, Citrix Systems, Inc.

set -e

keyfile="$1"

echo -n "Passphrase: "
read -s passphrase
echo

gpg -k
trap 'rm -f $HOME/.gnupg/create.*' EXIT
cat >$HOME/.gnupg/create.key <<EOF
    %echo Generating a test update key
    Key-Type: RSA
    Key-Length: 2048
    Name-Real: Example Updates
    Name-Comment: update
    Name-Email: example@example.com
    Expire-Date: 6m
    ${passphrase:+Passphrase: $passphrase}
    %commit
    %echo done
EOF

gpg --verbose --batch --gen-key $HOME/.gnupg/create.key 2>&1 | tee $HOME/.gnupg/create.out
hash=$(sed -ne 's/.* key \([^ ]*\) marked.*/\1/p' $HOME/.gnupg/create.out)
gpg --output $keyfile --armor --export $hash