crypto-promise.js

agCrypto.deriveKey('my password').then(function(rawPassword) {
	return agCrypto.getRandomValue();
}).then(function(generatedIV) {
	return agCrypto.encrypt({
		IV: generatedIV,
		key: rawPassword,
		data: "My Bonnie lies over the ocean, my Bonnie lies over the sea"
	});
}).then(function(cipherText) {
	console.log(cipherText);
}, function(error) {
  // there was some error.
});