The article discusses the basics of identification and authentication, using a personal anecdote involving an autographed Kenny Loggins guitar as an illustrative example. Identification refers to recognizing a user (e.g., the autograph), while authentication is about verifying that identity (e.g., a certificate of authenticity). The author, excited about receiving a guitar autographed by the famous singer and songwriter Kenny Loggins, uses this scenario to explain how authentication works in real-life contexts, including the significance of having both a username (the autograph) and credentials (the certificate).
Go here to read the Original Post