Suppose that a password for a locked door must have at least 8 characters, where each character in the password can be a lowercase English letter, an uppercase English letter, or a digit. Now imagine that a hacker is watching a user insert The password, and based on the time it took to insert the password, it cannot have been more than 11 characters long. Now, 1. How many passwords can there be for this locked door? 2. If the hacker can try a million (106) permutations at the locked door every second, how long will it take the hacker to try all the possible passwords?
Suppose that a password for a locked door must have at least 8 characters, where each character in the password can be a lowercase English letter, an uppercase English letter, or a digit. Now imagine that a hacker is watching a user insert The password, and based on the time it took to insert the password, it cannot have been more than 11 characters long. Now, 1. How many passwords can there be for this locked door? 2. If the hacker can try a million (106) permutations at the locked door every second, how long will it take the hacker to try all the possible passwords?
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.7: Introduction To Coding Theory (optional)
Problem 12E: Suppose that the check digit is computed as described in Example . Prove that transposition errors...
Related questions
Question
Suppose that a password for a locked door must have at least 8 characters, where each character in the password can be a lowercase English letter, an uppercase English letter, or a digit. Now imagine that a hacker is watching a user insert The password, and based on the time it took to insert the password, it cannot have been more than 11 characters long. Now,
1. How many passwords can there be for this locked door?
2. If the hacker can try a million (106) permutations at the locked door
every second, how long will it take the hacker to try all the possible
passwords?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.Recommended textbooks for you
Elements Of Modern Algebra
Algebra
ISBN:
9781285463230
Author:
Gilbert, Linda, Jimmie
Publisher:
Cengage Learning,
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Elements Of Modern Algebra
Algebra
ISBN:
9781285463230
Author:
Gilbert, Linda, Jimmie
Publisher:
Cengage Learning,
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
