Use true crypt for GPG and SSH keys

profile-crypt.sh

#!/bin/bash

# This should be loaded into the user profile

export TRUECRYPT_COMMAND='/Applications/TrueCrypt.app/Contents/MacOS/Truecrypt --text'
export TRUECRYPT_VOLUME_PATH=$HOME/secrets.tc


if [ -e "/Applications/TrueCrypt.app/Contents/MacOS/Truecrypt" ]
then
  alias crypt='$TRUECRYPT_COMMAND'

  complete -W "mount umount" crypt_secrets
  function crypt_secrets {
    mount_point="$HOME/.mausoleum"

    command=$1

    if [ -z $command ] || [ "$command" == "mount" ]
    then
      $TRUECRYPT_COMMAND $TRUECRYPT_VOLUME_PATH $mount_point
    elif [ "$command" == "umount" ]
    then
      $TRUECRYPT_COMMAND -d $TRUECRYPT_VOLUME_PATH
    fi
  }
fi

profile-prompt.sh

#!/bin/bash

# example prompt to display ☢ when the volume is mounted.

COLOR_DARK_GREEN="\[\033[1;36m\]"
COLOR_LIGHT_BLUE="\[\033[1;34m\]"
COLOR_NONE="\[\033[0m\]"

prompt_mausoleum() {
  crypt_mount_count=$(crypt -l 2> /dev/null | grep \.mausoleum | wc -l | awk '{print $1}')
  if [ $crypt_mount_count -gt 0 ]
  then
    # radioactive == \xe2\x98\xa2
    echo -e "$COLOR_DARK_GREEN\xe2\x98\xa2$COLOR_NONE:"
  fi
}

PROMPT_COMMAND='PS1="$(prompt_mausoleum)$COLOR_LIGHT_BLUE\w$COLOR_NONE: $";'

truecrypt-setup.sh

#!/bin/bash

function error_exit {
  echo "ERROR: $1"
  exit 1
}

TRUECRYPT_VOLUME_PATH=$HOME/secrets.tc

## check dependencies
if [ ! -e "/Applications/TrueCrypt.app/Contents/MacOS/Truecrypt" ]
then
  error_exit "Truecrypt must be installed"
fi

if [ ! -e "$TRUECRYPT_VOLUME_PATH" ]
then
  error_exit "Truecrypt volume must exist to continue"
fi

# get truecrypt volume ready
mkdir $HOME/.mausoleum
/Applications/TrueCrypt.app/Contents/MacOS/Truecrypt --text $TRUECRYPT_VOLUME_PATH $HOME/.mausoleum

## gnupg
if [ ! -e "$HOME/.gnupg" ]
then
  mkdir $HOME/.gnupg
  cp $HOME/.mausoleum/gnupg/gpg.conf $HOME/.gnupg/
  cp $HOME/.mausoleum/gnupg/pubring.gpg $HOME/.gnupg/
  cp $HOME/.mausoleum/gnupg/secring.gpg $HOME/.gnupg/
fi

## mausoleum links
mkdir -p $HOME/.ssh
for f in $HOME/.mausoleum/ssh/*
do 
  ln -s $f $HOME/.ssh/
done