My passwords and other miscellany are in a plain text file within an encrypted zip. Since starting to use OSX I’ve been looking for a way to access my passwords such that:

  • I get prompted for the decryption password.
  • The file gets unzipped, but not in the same directory, because that’s synced to Dropbox, so would send my plaintext passwords to them every time I accessed them. Maybe to /tmp?
  • The plaintext file within the zip is opened in $EDITOR.
  • Wait for me to close $EDITOR, then remove my plaintext passwords from the filesystem.
  • Before deleting the passwords, check if I’ve updated them. If so, put the new updated version back into the original zip file.
  • Don’t forget to keep the updated zip file encrypted, using the same password as before, without prompting for it again.

I failed to find an existing app which would do all this (although I had no trouble on Linux or even on Windows.) Hence, resorting to good old Bash:

#!/bin/bash

ZIPDIR="$HOME/docs/org"

read -s -p "Password:" key

cd $ZIPDIR
unzip -P $key passwords.zip passwords.txt -d $TMPDIR
if [[ $? != 0 ]] ; then
    exit 1
fi

cd "$TMPDIR"
touch passwords.datestamp
$EDITOR passwords.txt
if [[ passwords.txt -nt passwords.datestamp ]] ; then
    zip -P $key -r "$ZIPDIR/passwords.zip" passwords.txt
fi

rm passwords.txt
rm passwords.datestamp

I don’t expect this to be watertight, but seems good enough for today. I’m happy to hear suggestions.