Authentication
	§ Definition: Act of establishing that a claim (e.g. of identity) that is being made about an entity is true. § Objective: “Lively, Assured and Confidential communication” § Based on: – What you have (possessed items: e.g. special card/hardware) – What you know (stored/remembered items: e.g. cryptographic key information or passwords) – What you are (physical attributes that are hard to modify: e.g. RF fingerprints)