haste-server/lib/key_generators/phonetic.js

// Draws inspiration from pwgen and http://tools.arantius.com/password

const randOf = (collection) => {
	return () => {
		return collection[Math.floor(Math.random() * collection.length)];
	};
};

// Helper methods to get an random vowel or consonant
const randVowel = randOf('aeiou');
const randConsonant = randOf('bcdfghjklmnpqrstvwxyz');

module.exports = class PhoneticKeyGenerator {

	// Generate a phonetic key of alternating consonant & vowel
	createKey(keyLength){
		let text = '';
		const start = Math.floor(Math.random() * 2);

		for (let i = 0; i < keyLength; i++){
			text += (i % 2 == start) ? randConsonant() : randVowel();
		}

		return text;
	}

};