Password Cracking: Introduction and Hash Functions
30 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the basic problem that any system with access control must solve?

  • Managing password expiration dates
  • Generating secure random passwords
  • Verifying the identity of the user (correct)
  • Storing password in plain text

    • Why is it important for a password to be difficult to guess?

  • To reduce the load on the server
  • To prevent unauthorized access (correct)
  • To make it more memorable for the user
  • To speed up the login process

    • What is the purpose of a hash function in password storage?

  • To store the password in plain text
  • To protect the password from being easily reversed (correct)
  • To verify the password during login
  • To generate random passwords

    • What security problem arises when the system checks the password?

    <p>Vulnerability to eavesdropping</p> Signup and view all the answers

    Why do passwords play a crucial role in authentication?

    <p>To verify the identity of the user</p> Signup and view all the answers

    What does a lock constituted by three cylinders with only digits symbolize in relation to guessing passwords?

    <p>Reducing the probability of guessing the password</p> Signup and view all the answers

    What is the total number of positions in the lock constituted by three cylinders?

    <p>46656</p> Signup and view all the answers

    How many characters are typically included in passwords?

    <p>At least 8</p> Signup and view all the answers

    What is the approximate time required for brute-forcing a password of 10 characters?

    <p>~42 Million of Billions of years</p> Signup and view all the answers

    What kind of passwords are commonly chosen and considered insecure?

    <p>Passwords containing personal information</p> Signup and view all the answers

    What is the significance of using base-words when creating passwords?

    <p>It decreases the difficulty to guess passwords</p> Signup and view all the answers

    What is the total number of words in the English dictionary?

    <p>~170,000</p> Signup and view all the answers

    How many hash attempts per second can Nvidia’s new RTX 4090 graphics card achieve in breaking passwords?

    <p>300GH/sec</p> Signup and view all the answers

    What are considered as examples of base-words according to the text?

    <p>Vision2030, qwertysaudi, omar1981</p> Signup and view all the answers

    What is the total number of possible combinations for a lock constituted by three cylinders?

    <p>46656</p> Signup and view all the answers

    What should be avoided in creating passwords according to the text?

    <p>Passwords containing personal information</p> Signup and view all the answers

    What is the basic problem that any system with access control must solve?

    <p>Proving the user's identity reliably</p> Signup and view all the answers

    Why do passwords play a crucial role in authentication?

    <p>To verify the user's identity during authentication</p> Signup and view all the answers

    What is the purpose of a hash function in password storage?

    <p>To generate a unique code for each user's password</p> Signup and view all the answers

    Why is it important for a password to be difficult to guess?

    <p>To protect against unauthorized access to user accounts</p> Signup and view all the answers

    What security problem arises when the system checks the password?

    <p>Guessing the correct sequence of characters</p> Signup and view all the answers

    What is the total number of possible combinations for a lock constituted by three cylinders?

    <p>$1000$</p> Signup and view all the answers

    What is the total number of positions in the lock constituted by three cylinders?

    <p>46656</p> Signup and view all the answers

    How many hash attempts per second can Nvidia’s new RTX 4090 graphics card achieve in breaking passwords?

    <p>200KH/sec</p> Signup and view all the answers

    What is the approximate time required for brute-forcing a password of 10 characters?

    <ol start="46"> <li>= 42,420,747,482,776,576 (~42 Millions of Billions) seconds</li> </ol> Signup and view all the answers

    What is considered as an example of a base-word according to the text?

    <p>riyadh</p> Signup and view all the answers

    What is the total number of words in the English dictionary?

    <p>~170</p> Signup and view all the answers

    How many characters are typically included in passwords?

    <p>~8</p> Signup and view all the answers

    What does a lock constituted by three cylinders with only digits symbolize in relation to guessing passwords?

    <p>High guessing difficulty</p> Signup and view all the answers

    Why should personal information and common words be avoided in creating passwords according to the text?

    <p>Because they decrease the difficulty to guess passwords</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser