Add key generation script + keys folder

keys.sh

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+#!/bin/bash
+#
+# keys.sh generates keys used for the encryption of certain user data. Because
+# user data becomes unrecoverable without these keys, the script and won't 
+# overwrite any existing keys unless you explicitly delete them.
+#
+
+# Generate cookie encryption and authentication keys
+if [[ ! -e "$(pwd)/keys/cookies_enc.aes256" ]]; then
+	dd of=$(pwd)/keys/cookies_enc.aes256 if=/dev/urandom bs=32 count=1
+else
+	echo "cookies key already exists! rm keys/cookies_enc.aes256 if you understand the consquences."
+fi
+if [[ ! -e "$(pwd)/keys/cookies_auth.aes256" ]]; then
+	dd of=$(pwd)/keys/cookies_auth.aes256 if=/dev/urandom bs=32 count=1
+else
+	echo "cookies authentication key already exists! rm keys/cookies_auth.aes256 if you understand the consquences."
+fi
+
+# Generate email encryption key
+if [[ ! -e "$(pwd)/keys/email_enc.aes256" ]]; then
+	dd of=$(pwd)/keys/email_enc.aes256 if=/dev/urandom bs=32 count=1
+else
+	echo "email key already exists! rm keys/email_enc.aes256 if you understand the consquences."
+fi

keys/.gitignore

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+*.aes256

keys/README.md

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+Keys
+====
+
+Contains keys for encrypting database and session data. Generate necessary keys by running (from the root of the project) `./keys.sh`.