Peter Williams propagated

Hello software developers,

Please check your code to ensure you're not making one of the following mistakes related to cryptography.

I. General Mistakes

Writing your own home-grown cryptography primitives (For example: Mifare Classic)
- Exception: For the sake of learning, but don't deploy it in production.
Using a fast hash function (e.g. MD5, SHA256) for storing passwords. Use bcrypt instead.
Not using a cryptographically secure random number generator

	#!/bin/sh

	ON_OFF=$1
	SPOTIFY_PREFS="$HOME/Library/Application Support/Spotify/prefs"
	PROXY_ON="network.proxy.mode=2" #HTTP Proxy
	PROXY_OFF="network.proxy.mode=1" #No proxy

	if [ ! -f "$SPOTIFY_PREFS" ]; then
	echo "Spotify preference file not found. Exiting"
	exit 1