• Ask the user to enter a password that is 8-20 alphanumeric characters (letters & numbers only for simplicity) and assume entered correctly • Next, study pages 40, 74, 572 and 576-577 and use some of the String methods described on these pages to perform simple encryption on the password as follows: o add the string "bentleymajor" to the beginning of the password o replace each vowel character (a, e, i, o, u) to a unique non-alphanumeric character (non-letter, non-number) o replace each digit character (0-9) to a unique non-alphanumeric character (non-letter, non-number) o print the encrypted password o now decrypt the password by performing the reverse of the operations performed above o print the decrypted password (original password)

• Ask the user to enter a password that is 8-20 alphanumeric characters (letters & numbers only for simplicity) and assume entered correctly • Next, study pages 40, 74, 572 and 576-577 and use some of the String methods described on these pages to perform simple encryption on the password as follows: o add the string "bentleymajor" to the beginning of the password o replace each vowel character (a, e, i, o, u) to a unique non-alphanumeric character (non-letter, non-number) o replace each digit character (0-9) to a unique non-alphanumeric character (non-letter, non-number) o print the encrypted password o now decrypt the password by performing the reverse of the operations performed above o print the decrypted password (original password)

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Encryption algorithms are commonly used today to provide security. They transform sensitive data, making it unreadable to hackers.
Modern encryption algorithms are quite sophisticated, often employing random number generators. For this project, we will create a very
simple encryption algorithm which will allow us to practice using some of the methods that come with the String class.
Read Chapter 2 pages 70-92 and study the program "StringMethods.java" given with this assignment to see how to use some of the
methods that come with the String class. Also, study the program "StudentInfo.java" given with this assignment to see how to use the
methods that come with the Scanner class to read data input.
Now create a new project named Chap2-Encryption. Create a new class named Encryption and add code to do the following:
• Ask the user to enter a password that is 8-20 alphanumeric characters (letters & numbers only for simplicity) and assume it was
entered correctly
• Next, study pages 40, 74, 572 and 576-577 and use some of the String methods described on these pages to perform simple
encryption on the password as follows:
o add the string "bentleymajor" to the beginning of the password
o replace each vowel character (a, e, i, o, u) to a unique non-alphanumeric character (non-letter, non-number)
O replace each digit character (0 - 9) to a unique non-alphanumeric character (non-letter, non-number)
O print the encrypted password
o now decrypt the password by performing the reverse of the operations performed above
o print the decrypted password (original password)
Hint: You will need to use string methods replace(), substring(), and length() for encrypting and decrypting the
password. See pages 74, 572, and 576-577 for information on these methods.
Here is a sample output:
Enter a password that contains 8-20 alphanumeric characters: LetsGoFalcons2023
...encrypting the password...
Your encrypted password is: b@ntl@ym!j$rL@tsG$F!lc$ns*^*(
...decrypting the password...
Your decrypted password is: LetsGoFalcons2023
**Before submitting your code file (.java file), be sure to check that it follows the guidelines given in the code submission checklist
(posted under Announcements)
Upload your working program file, Encryption.java, to BB by the specified due date/time. Submissions are Single Attempts so be
sure to upload your java file (not the .class file). This file can be found inside your workspace folder named eclipse-workspace\Chap2-
Encryption. Please do not copy it into another program like MS Word, and do not upload a screeshot. It needs to be a .java file (plain text)
so I can load it into Eclipse and run it.

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