None
					                            
						                              The process of providing assurance about the identity of an entity interacting with a system (e.g., to access a resource). Also see Source authentication.
						                            Source(s):
						                            
								                            
                                                                    NIST SP 800-57 Part 2 Rev.1
										                            
									                            
						                            
						                            
						                        
					                            
						                              The process of providing assurance about the identity of an entity interacting with a system (e.g., to access a resource). Sometimes called identity authentication.
						                            Source(s):
						                            
								                            
                                                                    NIST SP 800-133 Rev.1
										                            
										                             [Superseded]
									                            
						                            
						                            
						                        
					                            
						                              A process that establishes the origin of information, or determines an entity’s identity to the extent permitted by the entity’s identifier.
						                            Source(s):
						                            
								                            
                                                                    NIST SP 800-56B Rev. 1
										                            
										                             [Superseded]