AES or Advanced Encryption Standard CBC and GCM

AES	Advanced Encryption Standard
	Symmetric encryption algorithm that is widely used in IPsec for data encryption. It comes in different key sizes (e.g., AES-128, AES-256).
CBC	Cipher Block Chaining
	CBC does not have this "authentication" capability

GCM	Galois/Counter Mode
	AES-GCM is an authenticated encryption algorithm designed to provide both authentication and privacy.

CBC	Cipher Block Chaining

	IV ( initialization vector ) is to avoid to start at 1 to n, instead random to another random number
GCM	Galois/Counter Mode
to encrypt the data
GCM but only auth	GMAC or Galois Message Authentication Code
just for authenticate the date

Cipher Block Chaining