Generate GPG key with a given Creation and Expire date

# Small script to generate GPG key with a given Creation and Expire date
# faketime is used as workaroud for Expire-Date misbehaviour
# 	TZ=UTC faketime '2019-12-01 00:00:00' gpg --batch --full-generate-key ./GenerateGPGkey.scr

# Print text as diagnostic.
%echo Generating new GPG key

# Suppress actual key generation (useful for syntax checking).
# %dry-run

Key-Type: default
Key-Length: 4096
Subkey-Type: default
Subkey-Length: 2048
Name-Real: $FirstName $LastName
Name-Comment: $CommentString
Name-Email: $mail
# Creation-Date: 20191201T000000
Expire-Date: 20250131T235900
# Expire-Date: -1m, 5y. +1m
Passphrase: $Password

# Do a commit here, so that we can later print "done" :-)
%commit
%echo done