2. Password Test: For security reasons, computer passwords usually must meet certain requirements. Write a program (password_test.py) that checks if passwords entered by the user meet these security requirements: at least 6 characters > no spaces or tabs at least 1 upper-case letter ➤ at least 1 lower-case letter ➤ at least one digit at least one special character (not letter, digit, space, or tab) The program has two functions: fValidatePwd(pw) and main(). fValidatePwd(): Takes a password as a parameter, tests it for the above requirements, and returns True if the password is valid, False if not. It can use any of Python's built-in string functions and methods. It should not print anything or ask the user for
2. Password Test: For security reasons, computer passwords usually must meet certain requirements. Write a program (password_test.py) that checks if passwords entered by the user meet these security requirements: at least 6 characters > no spaces or tabs at least 1 upper-case letter ➤ at least 1 lower-case letter ➤ at least one digit at least one special character (not letter, digit, space, or tab) The program has two functions: fValidatePwd(pw) and main(). fValidatePwd(): Takes a password as a parameter, tests it for the above requirements, and returns True if the password is valid, False if not. It can use any of Python's built-in string functions and methods. It should not print anything or ask the user for
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:### Password Test Program Overview
This guide describes how to create a program (`password_test.py`) ensuring that user-entered passwords meet specific security requirements. The program will check if the passwords fulfill the following criteria:
- Minimum of 6 characters
- No spaces or tabs
- At least one uppercase letter
- At least one lowercase letter
- At least one digit
- At least one special character (not a letter, digit, space, or tab)
### Program Components
The program is composed of two functions: `fValidatePwd(pw)` and `main()`.
#### 1. `fValidatePwd(pw)`
- **Purpose**: To validate if a password meets the specified security requirements.
- **Functionality**:
- Takes a password as an input parameter.
- Checks against the stated requirements.
- Returns `True` if valid, `False` otherwise.
- Utilizes Python's built-in string functions and methods without printing or asking for user inputs.
#### 2. `main()`
- **Purpose**: To interact with the user, obtain password input, and validate it.
- **Functionality**:
- Displays password requirements to the user.
- Prompts the user to enter a password.
- Calls `fValidatePwd()` to validate the entered password.
- Prints "Password OK." if the password is valid.
- Prints "Sorry, that is not a valid password." if invalid.
- Keeps a count of the total and the number of valid passwords attempted.
- Regardless of validity, asks the user if they want to try another password:
- If yes (`y`), the loop continues for another attempt.
- If no (`n`), the program prints "Your score: N valid passwords in M attempts." and exits.
This program ensures that passwords are strong and comply with security standards by systematically checking through a series of criteria and providing user feedback.
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