An easy and quick way to encrypt (and decrypt) sensitive files on your computer. The filename is static, so don't forget to set it (on line 14)!

Makefile

# Based on http://ejohn.org/blog/keeping-passwords-in-source-control/
# 
# John Resig needed a way to keep sensitive data (e.g. config files with
# passwords) out of source control. So he decided to encrypt the sensitive data.
#
# I decided to modify the script so it's purpose is quickly encrypting or
# decrypting any sensitive file you have on your computer.
#
# Usage: make encrypt
#        make decrypt

.PHONY: _pwd_prompt decrypt encrypt decrypt_conf encrypt_conf clean_encrypt clean_decrypt
 
FILE=filename
 
_pwd_prompt:
	@echo "Contact your_email@example.com for the password."

decrypt: decrypt_conf clean_decrypt

encrypt: encrypt_conf clean_encrypt

decrypt_conf: _pwd_prompt
	openssl cast5-cbc -d -in ${FILE}.cast5 -out ${FILE}
	chmod 600 ${FILE}

encrypt_conf: _pwd_prompt
	openssl cast5-cbc -e -in ${FILE} -out ${FILE}.cast5

clean_encrypt:
	\rm ${FILE}

clean_decrypt:
	\rm ${FILE}.cast5