Basics of Authentication 1.Authentication is the process of confirming the identity of a user or system attempting to access a resource. It ensures that the entity trying to gain access is indeed who or what it claims to be. The basics involve three factors: something you know (like a password), something you have (like a smartphone for two-factor authentication), or something you are (like biometric data - fingerprint, facial recognition). These factors combined form the foundation for various authentication methods used in digital security. Attacking a Password System Attacking a password system involves various techniques aimed at exploiting vulnerabilities to gain unauthorized access. Some common methods include: 1.Brute Force Attack: Trying all possible combinations of characters until the correct password is found. This method requires time but can be effective against weak passwords. 2.Dictionary Attack: Using a list of commonly used passwords or words