Pseudo Code Generator

User Authentication and Account Management Logic

This pseudo code details the operations for user authentication, including checking for existing users, validating credentials, locking accounts after failed attempts, creating new accounts, and managing password recovery processes.

Prompt

>>> BEGIN
...   IF user_exists(username) THEN
...     attempts = 0
...     WHILE attempts < 3 DO
...       INPUT username, password
...       IF validate_credentials(username, password) THEN
...         GRANT access
...         EXIT
...       ELSE
...         attempts = attempts + 1
...         DISPLAY "Incorrect credentials. You have " + (3 - attempts) + " attempts left."
...       END IF
...     END WHILE
...     IF attempts >= 3 THEN
...       LOCK account
...       DISPLAY "Account locked due to too many failed attempts."
...     END IF
...   ELSE
...     CREATE new_user_account(username, password)
...     DISPLAY "Account created. Please log in."
...   END IF
...   IF forgot_password THEN
...     INPUT email
...     SEND password_reset_link(email)
...     DISPLAY "Password reset link sent to your email."
...   END IF

Answer

Pseudo Code for User Authentication and Account Management

This pseudo code outlines the logic for user authentication, including account creation, credential validation, account locking after multiple failed attempts, and password recovery mechanisms.

Main Logic

BEGIN

Check if User Exists

IF user_exists(username) THEN attempts = 0

### Credential Validation Loop
WHILE attempts < 3 DO
    INPUT username, password
    
    ### Validate User Credentials
    IF validate_credentials(username, password) THEN
        GRANT access
        EXIT
    ELSE
        attempts = attempts + 1
        
        ### Display Remaining Attempts
        DISPLAY "Incorrect credentials. You have " + (3 - attempts) + " attempts left."
    END IF
END WHILE

### Lock Account if Attempts Exceeded
IF attempts >= 3 THEN
    LOCK account
    DISPLAY "Account locked due to too many failed attempts."
END IF

ELSE ### Create New User Account CREATE new_user_account(username, password) DISPLAY "Account created. Please log in." END IF

Password Recovery

IF forgot_password THEN INPUT email SEND password_reset_link(email) DISPLAY "Password reset link sent to your email." END IF

END

Key Components Explained

User Check: Verify if the username exists in the system.
Attempt Limiting: Allow up to three login attempts before locking the account.
Credential Validation: Check if the provided username and password are correct.
Account Locking: Lock the account and notify the user after three failed attempts.
Account Creation: If the user does not exist, create a new account.
Password Reset: Handle password recovery requests by sending a reset link.

This approach effectively combines user authentication and account handling while ensuring user security and experience through informative feedback.